Appendix A
In this chapter · 5 sections
Term help
Terms in this chapter (114)
- RFP (Request for Proposal)
- Commissioning (Cx)
- TIA (Telecommunications Industry Association)
- ISO (Independent System Operator)
- ASHRAE
- UEC (Ultra Ethernet Consortium)
- Uptime Tier
- ANSI (American National Standards Institute)
- TIA-942
- BICSI (Building Industry Consulting Service International)
- EN 50600
- IEC (International Electrotechnical Commission)
- NERC CIP (Critical Infrastructure Protection)
- NERC
- FERC (Federal Energy Regulatory Commission)
- Computational Load Site
- MW (Megawatt)
- Ride-through
- OCP (Open Compute Project)
- ERCOT
- NOGRR282
- SPP (Southwest Power Pool)
- PUCT (Public Utility Commission of Texas)
- HILL (High Impact Large Load)
- CLO/CLOP (Computational Load Owner / Operator)
- Checkpoint
- ASHRAE TC 9.9
- PUE (Power Usage Effectiveness)
- DCIM (Data Center Infrastructure Management)
- Reticle
- PG25 (25% propylene glycol)
- TCS (Technology Cooling System)
- Heat reuse
- NFPA (National Fire Protection Association)
- UL (Underwriters Laboratories)
- LNG (Liquefied natural gas)
- UPS (Uninterruptible Power Supply)
- VFD (Variable-frequency drive)
- Switchgear
- ASME (American Society of Mechanical Engineers)
- B31 (ASME B31)
- PED (Pressure Equipment Directive)
- IEEE (Institute of Electrical and Electronics Engineers)
- Substation
- VRLA (Valve-regulated lead-acid)
- BESS (Battery Energy Storage System)
- 800 VDC
- SPD (Surge protective device)
- KPI (Key Performance Indicator)
- ERF (Energy Reuse Factor)
- WUE (Water Usage Effectiveness)
- HPR (High Power Rack)
- N+1
- ORV3 (Open Rack V3)
- LVDC (Low-Voltage DC)
- VDC (Volts direct current)
- ORW (Open Rack Wide)
- Cold plate
- CDU (Coolant Distribution Unit)
- UQD (Universal Quick Disconnect)
- Glycol
- MGX
- Busbar
- Mt. Diablo
- VAC (Volts alternating current)
- SST (Solid-State Transformer)
- MV (Medium voltage)
- GB200
- NVL72
- NVMe (Non-Volatile Memory Express)
- SSD (solid-state drive)
- Hyperscaler
- PCIe (Peripheral Component Interconnect Express)
- Redfish
- CXL (Compute Express Link)
- HBM4
- DRAM (Dynamic Random-Access Memory)
- Rubin
- PAM4 (Pulse Amplitude Modulation, 4-level)
- Caliptra
- Root of trust (RoT)
- BMC (Baseboard Management Controller)
- IPMI (Intelligent Platform Management Interface)
- PLDM (Platform Level Data Model)
- HPC (High-Performance Computing)
- Scale-up
- InfiniBand (IB)
- PHY (Physical Layer)
- Collective
- UALink
- Chiplet
- UCIe (Universal Chiplet Interconnect Express)
- ESUN
- SUE-T (Scale-Up Ethernet Transport)
- XPU
- OSFP (Octal Small Form-factor Pluggable)
- FEC (Forward Error Correction)
- BER (Bit-Error Rate)
- UET (Ultra Ethernet Transport)
- SOC 2
- FedRAMP
- CMMC (Cybersecurity Maturity Model Certification)
- OT (Operational Technology)
- IEC 62443
- GPAI (General-Purpose AI)
- EED (Energy Efficiency Directive)
- EnEfG (Energieeffizienzgesetz (German Energy Efficiency Act))
- BACnet (Building Automation and Control Network)
- Modbus
- TCP (Transmission Control Protocol)
- NIST (National Institute of Standards and Technology)
- BES (Bulk Electric System)
- NIST SP 800-53
- SL1–SL5
Standards & Specifications Cross-Reference Matrix
No single standard governs an AI data center. Six overlapping regimes do (resilience, electrical installation and safety, thermal, efficiency, hardware and compliance), and they do not map one-to-one. Use this index to pick the exact source text for a contract, RFP or commissioning script.
What you'll decide here
- Name the exact document: issuer, part, edition, status and what it covers. A committee or class name alone does not identify one.
- Pick Uptime, TIA or EN/ISO maintenance and fault requirements before you commit to a rating. Equal numerals do not make the schemes equivalent.
- Choose documents by what they cover: TC 9.9 for thermal classes, and separate documents for the open rack, the power shelf and the cooling loop.
- Check the publisher's record before contract freeze. Contract to the issued edition; a superseded one needs a contractual reason.
- Go to the specialist chapters for how to apply each document. Appendix A and /library list the same documents.
This appendix indexes the standards the guide relies on most. Each row tells you who publishes the document, which edition is current, what it covers, and where to open the publisher's record. A row is an index entry, not an endorsement. The PNNL/ASHRAE/NEMA AI Data Center Energy Performance Framework, for example, gives lifecycle guidance rather than mandatory requirements, and a UEC publication does not prove that two devices interoperate. Put the issued edition in the contract. A draft is a risk you are buying, because its clauses can still change after you design to them.
1. Facility standards and classification documents
Uptime Tier, TIA Rated and EN/ISO Availability Classes differ in scope and tests, and matching numerals do not make them equivalent. Decide which maintenance and fault outcomes you need in Chapter 12.1 before a rating becomes contractual.
Document identity index: facility requirements
| Document | Kind | Issuing body | Part / edition / version | Status | As of | Access | Applicable boundary | Evidence locator |
|---|---|---|---|---|---|---|---|---|
| ANSI/TIA-942-C | standard | TIA | C (2024) | current | 2026-09-05 | paid | Facility infrastructure and Rated levels. | ↗ · Claim |
| ANSI/TIA-942-C AI addendum | standard | TIA | TIA-942-C-1 (Addendum 1: AI); call for interest 2026-02-26 | draft | 2026-10-16 | unpublished | AI facility cabling, power and cooling. | ↗ |
| ANSI/BICSI 002 | standard | BICSI | 2024 | current | 2026-09-05 | paid | Facility design. | ↗ |
| ANSI/BICSI 009 | standard | BICSI | 2024 | current | 2026-09-05 | paid | Facility operations. | ↗ |
| Uptime Tier Standard: Topology | standard | Uptime Institute | edition not stated online | current | 2026-09-05 | free | Facility topology outcomes. | ↗ |
| Uptime Tier Standard: Operational Sustainability | standard | Uptime Institute | effective 2013-04-01 | current | 2026-09-05 | free | Facility management behaviors. | ↗ |
| EN 50600-1 | standard | CENELEC / BSI | 2019 | current | 2026-09-05 | paid | Facility classification. | ↗ |
| EN 50600-2-4 | standard | CENELEC / BSI | 2023 | current | 2026-09-05 | paid | Telecom cabling. | ↗ |
| EN 50600-3-1 | standard | CENELEC / BSI | 2026 | current | 2026-09-05 | paid | Management and operation. | ↗ |
| ISO/IEC 22237-1 | standard | ISO/IEC | 2021 | current | 2026-09-05 | paid | Facility classification. | ↗ |
| ISO/IEC 22237-2 | standard | ISO/IEC | 2024 | current | 2026-09-05 | paid | Building construction. | ↗ |
| ISO/IEC 22237-3 | standard | ISO/IEC | 2021 | current | 2026-09-05 | paid | Power distribution. | ↗ |
| ISO/IEC 22237-4 | standard | ISO/IEC | 2021 | current | 2026-09-05 | paid | Environmental control. | ↗ |
| ISO/IEC TS 22237-5 | specification | ISO/IEC | 2018 | current | 2026-09-05 | paid | Telecom cabling. | ↗ |
| ISO/IEC 22237-6 | standard | ISO/IEC | 2024 | current | 2026-09-05 | paid | Physical security. | ↗ |
| ISO/IEC TS 22237-7 | specification | ISO/IEC | 2018 | current | 2026-09-05 | paid | Management and operation. | ↗ |
| EN 50600-2-1 | standard | CENELEC / BSI | 2021 | current | 2026-09-05 | paid | Building construction. | ↗ |
| EN 50600-2-2 | standard | CENELEC / BSI | 2019 | current | 2026-09-05 | paid | Power supply and distribution. | ↗ |
| EN 50600-2-3 | standard | CENELEC / BSI | 2019 | current | 2026-09-05 | paid | Environmental control. | ↗ |
| EN 50600-2-5 | standard | CENELEC / BSI | 2021 | current | 2026-09-05 | paid | Physical security. | ↗ |
| NERC CIP-014 | standard | NERC / FERC | -3 in force; -4 approved 2026-09-10, effective 2028-10-01 | current | 2026-10-16 | free | Physical security of transmission substations; a Transmission Owner/Operator duty (Chapter 4.3). | ↗ |
| NERC CLO-001-1, CLO-002-1, CLO-003-1 (Project 2026-02) | standard | NERC / FERC | -1 final-ballot texts (October 2026); FAC-001-5 and FAC-002-5 revised alongside | draft | 2026-10-19 | free | Computational Load Sites ≥50 MW at ≥100 kV: interconnection, modeling, data, protection, disturbance monitoring; no ride-through curve. Ballot passed 2026-10-15 (Chapter 4.3). | ↗ |
| OCP Interface Specification Between Hyperscalers and Utility Grid for Disturbance Performance | specification | OCP | 1.0.0 (effective 2026-09-17) | current | 2026-10-19 | free | Ride-through and recovery for computing load only; cooling exempt. An industry spec, not a regulation: in the US, ERCOT NOGRR282 and SPP rules bind (Chapter 4.10; tests: 13.6). | ↗ |
| OCP Open Data Center: Next-Generation ML Infrastructure Design Principles | specification | OCP (AMD, Google, Meta, NVIDIA) | Revision 0.7.0 (effective 2026-08-27) | current | 2026-10-19 | free | Design targets for 2027–28 ML halls: 8,000 lb rack, 12 ft transport aisle, 25 kW/ft average (15 kW/ft air plus 25 kW/ft liquid capacity), 350 kW/ft peak (Chapter 6.1). | ↗ |
| ERCOT NOGRR282 (Large Computational Load ride-through) | regulation | ERCOT / PUCT | PUCT-approved 2026-07-09; effective 2026-08-01 | current | 2026-10-19 | free | New Large Computational Loads ≥75 MW (≥50% power electronic): ≥90% of load back within 2 s of voltage above 0.90 pu; operating or approved by 2025-11-14 exempt (Chapter 4.10). | ↗ · Claim |
| SPP RR696 High Impact Large Load (HILL) requirements | regulation | SPP / FERC | RR696 (revision 2025-09-23); applies to requests from 2026-01-15 | current | 2026-10-19 | free | Loads ≥10 MW at ≤69 kV or ≥50 MW above: ride through 0.50–<0.80 pu for 0.50 s, ≥90% recovery within 1 s, at least six fault-clearing attempts in 90 s (Chapter 4.10). | ↗ · Claim |
| EirGrid Grid Code modification MPID 345 (demand fault ride-through) | regulation | EirGrid / CRU | CRU decision 2026-09-22; in force from about 2026-10-27 | current | 2026-10-19 | free | Transmission-connected demand: fault ride-through, ±1 Hz/s RoCoF withstand, active-power recovery; non-compliance without a derogation breaches the Code (Chapter 3.2). | ↗ |
| NERC CLO/CLOP registry criteria (Rules of Procedure Appendices 2, 5A and 5B) | regulation | NERC / FERC | Board-approved 2026-10-08; FERC filing due 2026-12-31 | draft | 2026-10-19 | free | Registers Computational Load Owners and Operators for sites ≥50 MW connected at ≥100 kV; a proposal until FERC approves it (Chapter 4.3). | ↗ · Claim |
| NERC Level 3 alert: computational loads | guideline | NERC | Level 3 Essential Actions alert (2026-05-04) | current | 2026-10-19 | free | Seven essential actions for planners, transmission entities, balancing authorities and reliability coordinators; not mandatory, nothing set on data centers directly (Chapter 4.10). | ↗ · Claim |
Status describes publication, not local adoption or compliance. For a document family, pick a specific part: base and SER-pack dates do not date every part. Access refers to the full document, and previews may be free. Work to the boundary in each row. The ↗ link opens the publisher record, and you need access to read paid clauses.
2. Thermal guidance, installation and safety documents
ASHRAE classes define equipment operating ranges, not rack-power ceilings. Chapter 5.1 sets out the limits of air cooling. Chapter 5.7 weighs the economizer and reuse benefits of warmer water against chip thermal margin.
Document identity index: thermal references
| Document | Kind | Issuing body | Part / edition / version | Status | As of | Access | Applicable boundary | Evidence locator |
|---|---|---|---|---|---|---|---|---|
| ASHRAE TC 9.9 Datacom Encyclopedia | guideline | ASHRAE | Online; revision ID not published | current | 2026-09-05 | paid | Datacom engineering reference. | ↗ |
| ASHRAE Datacom book 1: Thermal Guidelines for Data Processing Environments | guideline | ASHRAE | 5th (2021) | current | 2026-10-19 | paid | Air A1–A4/H1 and facility-water W classes. | ↗ · Access · Claim |
| ASHRAE Datacom book 2: IT Equipment Power Trends | guideline | ASHRAE | 3rd (2018) | historical | 2026-09-05 | paid | IT power trends. | ↗ · Access |
| ASHRAE Datacom book 3: Design Considerations for Datacom Equipment Centers | guideline | ASHRAE | 2nd (2009) | historical | 2026-09-05 | paid | Facility design. | ↗ · Access |
| ASHRAE Datacom book 4: Liquid Cooling Guidelines for Datacom Equipment Centers | guideline | ASHRAE | 2nd (2013) | historical | 2026-09-05 | paid | Liquid-cooling system design. | ↗ · Access · Errata |
| ASHRAE Datacom book 5: Structural and Vibration Guidelines for Datacom Equipment Centers | guideline | ASHRAE | 2008 | current | 2026-09-05 | paid | Structure and vibration. | ↗ · Access |
| ASHRAE Datacom book 6: Best Practices for Datacom Facility Energy Efficiency | guideline | ASHRAE | 2nd (2009) | historical | 2026-09-05 | paid | Facility efficiency. | ↗ · Access |
| ASHRAE Datacom book 7: High Density Data Centers—Case Studies and Other Considerations | guideline | ASHRAE | 2008 | historical | 2026-09-05 | paid | High-density design cases. | ↗ · Access |
| ASHRAE Datacom book 8: Particulate and Gaseous Contamination in Datacom Environments | guideline | ASHRAE | 2nd (2014) | current | 2026-09-05 | paid | Contamination control. | ↗ · Access |
| ASHRAE Datacom book 9: Real-Time Energy Consumption Measurements in Data Centers | guideline | ASHRAE | 2010 | current | 2026-09-05 | paid | Energy measurement. | ↗ · Access |
| ASHRAE Datacom book 10: Green Tips for Data Centers | guideline | ASHRAE | 2011 | current | 2026-09-05 | paid | Efficiency practices. | ↗ · Access |
| ASHRAE Datacom book 11: PUE: A Comprehensive Examination of the Metric | guideline | ASHRAE | 2014 | current | 2026-09-05 | paid | PUE interpretation. | ↗ · Access |
| ASHRAE Datacom book 12: Server Efficiency: Metrics for Computer Servers and Storage | guideline | ASHRAE | 2015 | historical | 2026-09-05 | paid | IT efficiency metrics. | ↗ · Access |
| ASHRAE Datacom book 13: IT Equipment Design Impact on Data Center Solutions | guideline | ASHRAE | 2016 | current | 2026-09-05 | paid | IT and facility interfaces. | ↗ · Access |
| ASHRAE Datacom book 14: Advancing DCIM with IT Equipment Integration | guideline | ASHRAE | 2019 | current | 2026-09-05 | paid | DCIM integration. | ↗ · Access |
| ASHRAE Standard 90.1 | standard | ASHRAE / IES | 2025 | current | 2026-10-19 | paid | Building energy code floor, including minimum chiller efficiencies; data-center IT energy performance falls under Standard 90.4. | ↗ |
| ASHRAE Standard 90.4 | standard | ASHRAE | 2025 | current | 2026-09-05 | paid | Data-center energy performance. | ↗ |
| ASHRAE Standard 127 | standard | ASHRAE | 2020 + Addendum b (approved 2026-02-27) | current | 2026-10-16 | paid | Laboratory rating tests for data-center cooling equipment. Addendum b adds a rating method for liquid-to-liquid CDUs (Chapter 5.6). | ↗ |
| ASHRAE Standard 188 | standard | ASHRAE | 2021 | current | 2026-09-05 | paid | Building-water Legionella risk. | ↗ |
| ASHRAE Standard 202 | standard | ASHRAE | 2024 | current | 2026-09-05 | paid | Building commissioning process. | ↗ |
| AI Data Center Energy Performance Framework | guideline | PNNL / ASHRAE / NEMA | Online; revision ID not published | current | 2026-09-05 | free | AI facility energy and water practices. | ↗ |
| OCP White Paper: Thermal Boundaries in AI Infrastructure | report | OCP (Cooling Environments) | v1.00 (2026-10-12) | current | 2026-10-17 | free | Cooling-method selection by efficiency, economics and physics limits; projects a single-phase cold-plate limit near 4,000 W per reticle-class die (Chapter 5.1). | ↗ · Claim |
| OCP OAI System Liquid Cooling Guidelines | guideline | OCP (Open Accelerator Infrastructure) | 2023-03-03 update | current | 2026-10-19 | free | Cold-plate loop design for 8-OAM training systems: 7.5–12 °C coolant rise, about 1.25–2.0 L/min per kW with PG25 (§1.3). A TCS guideline, not a facility-water target (Chapter 5.6). | ↗ · Claim |
| OCP Seizing Data Center Heat Reuse Opportunities: Guidelines for Local Authorities | guideline | OCP (Cooling Environments, Heat Reuse sub-project) | V 1.00 (September 2024); restated on OCP's blog 2026-05-20 | current | 2026-10-17 | free | Local-government levers for heat reuse: matching heat users, incentives, agreements before permit approval (Chapter 15.5). | ↗ |
| ASHRAE Guideline 0 | guideline | ASHRAE | 2019 | current | 2026-09-05 | paid | Whole-building commissioning. | ↗ |
| ASHRAE Guideline 1.1 | guideline | ASHRAE | 2025 | current | 2026-09-05 | paid | HVAC commissioning. | ↗ |
| ASHRAE Guideline 12 | guideline | ASHRAE | 2023 | current | 2026-09-05 | paid | Building-water Legionella management. | ↗ |
| ASHRAE Handbook—Fundamentals (2017), Chapter 8 | guideline | ASHRAE | 2017 SI; Sound and Vibration | historical | 2026-09-08 | free | Octave/A-weighting, level summation and propagation; no project noise limits. | Chapter |
ASHRAE labels a book historical once it moves into the paid Datacom Encyclopedia archive; the content is not withdrawn. Thermal Guidelines, 5th edition (2021), is marked current here because it is still the newest edition and defines the A1–A4, H1 and W classes the guide uses. Books not yet migrated are sold separately.
Document identity index: installation and safety references
| Document | Kind | Issuing body | Part / edition / version | Status | As of | Access | Applicable boundary | Evidence locator |
|---|---|---|---|---|---|---|---|---|
| NFPA 70 | standard | NFPA | 2026 | current | 2026-09-05 | paid | Electrical installations. | ↗ |
| NFPA 70E | standard | NFPA | 2027 | current | 2026-09-05 | paid | Electrical work safety. | ↗ |
| NFPA 75 | standard | NFPA | 2024 | current | 2026-09-05 | paid | IT equipment fire protection. | ↗ |
| NFPA 76 | standard | NFPA | 2024 | current | 2026-09-05 | paid | Telecom facility fire protection. | ↗ |
| NFPA 72 | standard | NFPA | 2025 | current | 2026-10-19 | paid | Fire alarm and signaling: detection, notification and the alarm path (Chapter 6.5). | ↗ |
| NFPA 13 | standard | NFPA | 2025 | current | 2026-10-19 | paid | Sprinkler system installation, including pre-action systems (Chapter 6.5). | ↗ |
| NFPA 2001 | standard | NFPA | 2025 | current | 2026-10-19 | paid | Clean-agent fire extinguishing systems (Chapter 6.5). | ↗ |
| NFPA 1 | standard | NFPA | 2027 | current | 2026-10-19 | paid | Fire Code adopted in some states instead of the IFC; carries the ESS requirements there (Chapter 6.5). | ↗ |
| International Fire Code (IFC) | standard | International Code Council (ICC) | 2027 (Section 1207 Electrical Energy Storage Systems); 2024 or 2021 edition where adopted; Section 1206 in 2018-edition states | current | 2026-10-19 | free | US model fire code that gives ESS rules legal force where adopted: Section 1207 sets the stored-energy thresholds and recognizes UL 9540A testing (Chapter 6.5). | ↗ |
| NFPA 855 | standard | NFPA | 2026 | current | 2026-09-05 | paid | Stationary energy-storage installation. | ↗ |
| NFPA 110 | standard | NFPA | 2025 | current | 2026-09-05 | paid | Emergency and standby power systems. | ↗ |
| NFPA 37 | standard | NFPA | 2024 | current | 2026-10-19 | paid | Installation and use of stationary combustion engines and gas turbines (Chapter 4.9). | ↗ |
| NFPA 56 | standard | NFPA | 2027 | current | 2026-10-19 | paid | Cleaning and purging of flammable-gas piping, new or existing; forbids using flammable gas to clean pipe (Chapter 4.9). | ↗ |
| NFPA 59A | standard | NFPA | 2026 | current | 2026-10-19 | paid | Production, storage and handling of LNG; thermal-radiation and vapor-dispersion siting distances, as adopted by the state or local fire code (Chapter 4.9). | ↗ |
| NFPA 70B | standard | NFPA | 2026 | current | 2026-10-16 | paid | Electrical equipment maintenance programs. | ↗ |
| NFPA 780 | standard | NFPA | 2026 | current | 2026-09-05 | paid | Lightning-protection installation. | ↗ |
| IEC 60038 | standard | IEC | 2009 + AMD1:2021; ed. 7.1 | current | 2026-09-05 | paid | System voltage values. | ↗ |
| IEC 60255 | standard | IEC | Series; -1:2022 base | varies by part | 2026-09-05 | paid | Protection relays. | ↗ |
| IEC 60309 | standard | IEC | Series; -1:2021 + COR1:2023 base | varies by part | 2026-09-05 | paid | Industrial plugs and sockets. | ↗ |
| IEC 60320 | standard | IEC | Series; -1:2021 base | varies by part | 2026-09-05 | paid | Equipment couplers. | ↗ |
| IEC 60364 | standard | IEC | Series; -1:2025 base | varies by part | 2026-10-19 | paid | Low-voltage installations. Europe applies the parts as the CENELEC HD 60364 series, through each country's national standards. | ↗ |
| BS 7671 | standard | IET / BSI | 2018+A4:2026 (published April 2026); A2:2022+A3:2024 withdrawn 2026-10-15 | current | 2026-10-19 | paid | UK wiring regulations; Amendment 4 adds rules for battery energy storage and ICT functional earthing (Appendix G). | ↗ · Claim |
| CSA C22.1 (Canadian Electrical Code, Part I) | standard | CSA Group | 2024 (26th edition) | current | 2026-10-19 | paid | Canadian electrical installation code, adopted and amended by each province or territory (Appendix G). | ↗ |
| AS/NZS 3000 (Wiring Rules) | standard | Standards Australia / Standards New Zealand | 2018 + Amd 1:2020, Amd 2:2021, Amd 3:2023 | current | 2026-10-19 | paid | Australian and New Zealand electrical installation rules, applied through state, territory and national law (Appendix G). | ↗ |
| NR-10 | regulation | Brazil Ministry of Labour and Employment | As amended by Portaria SEPRT 915/2019 (in force until 2027-05-31); new text by Portaria MTE 737/2026 in force from 2027-06-01 | current | 2026-10-19 | free | Safety in electrical installations and services (electrical work safety) (Appendix G). | ↗ |
| IEC 61000-4-7 | standard | IEC | 2002 + AMD1:2008 (consolidated 2.1) | current | 2026-10-13 | paid | Harmonic and interharmonic measurement method. | ↗ |
| IEC 61000-4-30 | standard | IEC | 2025; corrected 2026-07 | current | 2026-09-05 | paid | Power-quality measurement. | ↗ |
| IEC 62368-1 | standard | IEC | 4.0 (2023; corrected 2025-08) | current | 2026-10-13 | paid | Safety of ICT and audio/video equipment, including energy-source classes. | ↗ |
| IEC 61439 | standard | IEC | Series; -1:2020 base | varies by part | 2026-09-05 | paid | Low-voltage assemblies. | ↗ |
| IEC 61508-6 | standard | IEC | 2010; ed. 2.0 | current | 2026-09-05 | paid | Functional-safety application guidance. | ↗ |
| IEC 61511 | standard | IEC | 2026 SER pack; part editions vary | varies by part | 2026-09-05 | paid | Process safety systems. | ↗ |
| IEC 61643 | standard | IEC | Series; -01:2024 base | varies by part | 2026-09-05 | paid | Surge-protective devices. | ↗ |
| IEC 61643-01 | standard | IEC | 2024; ed. 1.0 | current | 2026-09-05 | paid | Surge-protection general requirements. | ↗ |
| IEC 61643-11 | standard | IEC | 2025; ed. 2.0 | current | 2026-09-05 | paid | AC surge-protective devices. | ↗ |
| IEC 61643-41 | standard | IEC | 2025; ed. 1.0 | current | 2026-09-05 | paid | DC surge-protective devices. | ↗ |
| IEC 61850 | standard | IEC | 2026 SER pack; part editions vary | varies by part | 2026-09-05 | paid | Utility-automation communications. | ↗ |
| IEC 62040-3 | standard | IEC | 2021; ed. 3.0 | current | 2026-10-19 | paid | UPS performance and test methods, including the VFI/VI/VFD classification used to compare double-conversion and eco modes (Chapter 4.5). | ↗ |
| IEC 62053-22 | standard | IEC | 2020; ed. 2.0 | current | 2026-09-05 | paid | Static active-energy meters. | ↗ |
| IEC 62271 | standard | IEC | 2026 SER pack; part editions vary | varies by part | 2026-09-05 | paid | High-voltage switchgear. | ↗ |
| IEC 62305 | standard | IEC | 2026 SER pack; parts 1–4:2024 | varies by part | 2026-09-05 | paid | Lightning protection. | ↗ |
| IEC 62305-2 | standard | IEC | 2024 + COR1:2024; ed. 3.0 | current | 2026-09-05 | paid | Lightning-risk management. | ↗ |
| IEC 62305-3 | standard | IEC | 2024; ed. 3.0 | current | 2026-09-05 | paid | Physical lightning protection. | ↗ |
| IEC 62682 | standard | IEC | 2022; ed. 2.0 | current | 2026-09-05 | paid | Alarm-system management. | ↗ |
| EN 54 | standard | CEN / BSI | Series; -1:2021 introduction | varies by part | 2026-09-05 | paid | Fire detection and alarms. | ↗ |
| EN 13445 | standard | CEN / BSI | Series; -1:2026 general | varies by part | 2026-09-05 | paid | Unfired pressure vessels. | ↗ |
| EN 13480 | standard | CEN / BSI | Series; -1:2024 general | varies by part | 2026-09-05 | paid | Metallic industrial piping. | ↗ |
| ASME B31.3 | standard | ASME | 2024 | current | 2026-10-19 | paid | Process piping: design, materials, fabrication, examination and pressure testing (Chapter 5.13). | ↗ |
| ASME B31.5 | standard | ASME | 2022 | current | 2026-10-19 | paid | Refrigeration piping and heat-transfer components (Chapter 5.13). | ↗ |
| ASME B31.9 | standard | ASME | 2025 | current | 2026-10-19 | paid | Building services piping, such as chilled- and condenser-water systems in commercial and institutional buildings, within its size, pressure and temperature limits (Chapter 5.13). | ↗ |
| Pressure Equipment Directive (PED) | regulation | EU | Directive 2014/68/EU (consolidated text 2026-05-30) | current | 2026-10-19 | free | EU conformity assessment for pressure equipment and assemblies above 0.5 bar, graded into Categories I–IV (Chapter 5.13). | ↗ · Claim |
| EN 15978 | standard | CEN / BSI | 2026 | current | 2026-09-05 | paid | Building environmental assessment. | ↗ |
| EN 16750 | standard | CEN / NSAI | 2017 + A1:2020 | current | 2026-09-05 | paid | Oxygen-reduction fire prevention. | ↗ |
| ETSI EN 300 132-3-1 | standard | ETSI | V2.1.1 (2012-02); replaced by Part 3 V2.3.1 (2023) | superseded | 2026-09-30 | free | DC power interface up to 400 V at telecom/ICT equipment input. | ↗ |
| ISO 668 | standard | ISO | 2020 + Amd1:2022 | current | 2026-09-05 | paid | Freight-container dimensions. | ↗ |
| ISO 1996-2 | standard | ISO | 2017 (Edition 3) | current | 2026-10-16 | paid | Environmental noise: determining sound pressure levels; informative Annex K gives an objective tonal screen. | ↗ |
| ISO 8528-5 | standard | ISO | 2025 | current | 2026-10-16 | paid | Generator-set performance classes and load-step response. | ↗ |
| ISO 10816 | standard | ISO | Series; editions vary by part | varies by part | 2026-10-19 | paid | Machine vibration evaluation. Parts 1 to 5 are withdrawn and replaced by the matching ISO 20816 parts, so specify ISO 20816 where a part exists; the pump part (2009) stands. | ↗ |
| ISO 14001 | standard | ISO | 2026; ed. 4 | current | 2026-09-05 | paid | Environmental management. | ↗ |
| ISO 14040 | standard | ISO | 2006 + Amd1:2020 | current | 2026-09-05 | paid | Life-cycle assessment. | ↗ |
| ISO 14067 | standard | ISO | 2018; second edition in development (ISO/WD 14067.2) | current | 2026-10-16 | paid | Product carbon footprint (quantification and communication); how IT-equipment footprints are assessed outside a building LCA. | ↗ |
| ISO 14520 | standard | ISO | Part 1: 2023 (ed. 4); agent parts dated separately (e.g. Part 5: 2024, Part 17: 2022) | varies by part | 2026-10-19 | paid | Gaseous (clean-agent) fire-extinguishing systems: design and installation; the international counterpart of NFPA 2001 (Chapter 6.5). | ↗ |
| ISO/IEC 17025 | standard | ISO/IEC | 2017 | current | 2026-10-16 | paid | Testing and calibration laboratory competence. | ↗ |
| ISO 45001 | standard | ISO | 2018 + Amd1:2024 | current | 2026-09-05 | paid | Occupational health and safety. | ↗ |
| ANSI/TIA-607 | standard | TIA | E (2024) | current | 2026-09-05 | paid | Telecom bonding and grounding. | ↗ |
| IEEE 80 | standard | IEEE | 2013; incorporates Cor1:2015 | inactive-reserved | 2026-09-05 | paid | Substation grounding. | ↗ |
| IEEE 81 | guideline | IEEE | 2025 (supersedes IEEE 81-2012) | current | 2026-10-19 | paid | Guide for measuring earth resistivity, ground impedance and earth surface potentials of a grounding system (Wenner four-pin surveys for grid design) (Chapter 4.11). | ↗ |
| IEEE 1100 | standard | IEEE | 2005 | inactive-reserved | 2026-09-05 | paid | Equipment powering and grounding. | ↗ |
| IEEE 142 | standard | IEEE | 2007 | inactive-reserved | 2026-09-05 | paid | Industrial grounding. | ↗ |
| IEEE 3003.1 | standard | IEEE | 2019 | current | 2026-10-13 | paid | Grounding of industrial and commercial power systems. | ↗ |
| IEEE 1547 | standard | IEEE | 2018 + 1547a:2020 | current | 2026-09-05 | paid | Distributed-energy interconnection. | ↗ |
| IEEE 1668 | recommended practice | IEEE | 2017 | active | 2026-09-09 | paid | Voltage-sag and short-interruption ride-through testing for end-use equipment below 1,000 V; the ride-through curve SPP's HILL requirement builds on (Chapter 4.10). | ↗ |
| IEEE 1584 | standard | IEEE | 2018 | current | 2026-09-05 | paid | Arc-flash calculations. | ↗ |
| IEEE 2030.7 | standard | IEEE | 2017 | current | 2026-09-05 | paid | Microgrid controllers. | ↗ |
| IEEE 2030.8 | standard | IEEE | 2018 | current | 2026-09-05 | paid | Microgrid-controller tests. | ↗ |
| IEEE 242 | standard | IEEE | 2001 | inactive-reserved | 2026-09-05 | paid | Industrial protection. | ↗ |
| IEEE 2800 | standard | IEEE | 2022 | current | 2026-09-05 | paid | Transmission-connected inverter resources. | ↗ |
| IEEE 2883 | standard | IEEE | 2022 | current | 2026-09-05 | paid | Storage sanitization. | ↗ |
| IEEE 2883.1 | recommended practice | IEEE | 2025 | active | 2026-10-16 | paid | Applying IEEE 2883 sanitization methods across provisioning, reuse, resale and disposal. | ↗ |
| IEEE 3002.2 | standard | IEEE | 2018 | current | 2026-09-05 | paid | Load-flow studies. | ↗ |
| IEEE 3002.3 | standard | IEEE | 2018 | current | 2026-09-05 | paid | Short-circuit studies. | ↗ |
| IEEE 3004 | standard | IEEE | Series; editions vary by part | varies by part | 2026-09-05 | paid | Equipment protection. | ↗ |
| IEEE 399 | standard | IEEE | 1997 | inactive-reserved | 2026-09-05 | paid | Industrial power-system analysis. | ↗ |
| IEEE 450 | standard | IEEE | 2020 | current | 2026-09-05 | paid | Stationary lead-acid battery maintenance. | ↗ |
| IEEE 1188 | recommended practice | IEEE | 2025 | active | 2026-10-16 | paid | VRLA battery maintenance and testing. | ↗ |
| IEEE 519 | standard | IEEE | 2022 | current | 2026-09-05 | paid | Harmonic control. | ↗ |
| IEEE C57.110 | recommended practice | IEEE | 2018 | active | 2026-09-08 | paid | Transformer capability under nonsinusoidal currents; apply its method to the transformer you are offered. | ↗ |
| IEEE PC57.110 | revision project | IEEE | PAR approved 2026-02-12 | active PAR; not a published replacement | 2026-09-08 | unpublished | Two-winding transformer scope; excludes rectifier transformers per the public project description. Draft clauses are not public. | Project |
| IEEE P80 | guideline | IEEE | PAR 2025-09-10; draft ID not public | draft | 2026-09-05 | unpublished | Substation grounding revision. | ↗ |
| ISO 20816 | standard | ISO | Series; Part 1:2016 | varies by part | 2026-09-08 | paid | Machine vibration; select machinery part. Excludes floor/pipe-support limits. | Catalog |
| ANSI/TIA-568 | standard | TIA | Part 3 revision E (568.3-E) | current | 2026-10-16 | paid | Structured cabling; 568.3 covers optical fiber components and polarity methods A, B, C, U1 and U2. | ↗ |
| UL 9540A | standard | UL Standards & Engagement | 6th ed. (2026-03-13) | current | 2026-10-16 | paid | Thermal-runaway fire test for BESS, including the large-scale fire test (Chapter 6.5). | ↗ |
| UL 9540 | standard | UL Standards & Engagement | 3rd ed. (2023-06-28); revised 2025-03-07 | current | 2026-10-19 | paid | Safety listing of a complete energy-storage system. A UL 9540A fire-test report is not a UL 9540 listing (Chapter 6.5). | ↗ |
| UL 1449 | standard | UL Standards & Engagement | 5th ed. (2021); ANSI-approved revision 2025-10-21 | current | 2026-10-19 | paid | North American surge-protective device standard. Its scope names AC and PV DC applications, so a non-PV 800 VDC SPD needs its own evaluation (Chapter 4.11). | ↗ · Claim |
| UL 2877 | specification | UL LLC (UL Solutions) | Outline of Investigation (Power Supplies, Medium Voltage); certification program launched 2026-09-24 | current | 2026-10-19 | paid | Power supplies with input above 1,000 V up to 38 kV; the basis for certifying medium-voltage solid-state power units. No certified product was named at launch (Chapter 4.7). | ↗ |
| UL 4501 | specification | UL LLC (UL Solutions) | Outline of Investigation; certification program launched 2026-09-29 | current | 2026-10-19 | paid | Direct-to-chip liquid-cooling parts (cold plates, manifolds, quick disconnects): coolant compatibility, pressure, leak integrity, durability, flow, interoperability (Chapter 5.11). | ↗ |
| UL 2140 | specification | UL LLC (UL Solutions) | Outline of Investigation, Edition 1 (2026-08-31) | current | 2026-10-19 | paid | Factory-built prefabricated power-distribution assemblies, certified as a whole with factory follow-up (Chapter 6.4). | ↗ |
| OCP White Paper: Requirements for Energy Storage Systems Used in Data Centers | report | OCP (Data Center Facility, Energy sub-project; OCP Ready) | Rev 1.0, Version 1.0 (January 2026) | current | 2026-10-17 | free | Data-center ESS requirements: BESS testing, detection, suppression, ventilation, lithium handling (Chapter 4.5; fire code in Chapter 6.5). | ↗ |
| 49 CFR Part 192 | regulation | US DOT PHMSA | current eCFR | current | 2026-10-19 | free | Transportation of natural gas by pipeline: minimum federal safety standards; usually governs the operator's lateral and meter station (Chapter 4.9). | ↗ |
| 49 CFR Part 193 | regulation | US DOT PHMSA | current eCFR | current | 2026-10-19 | free | LNG facilities that are part of a gas pipeline system; excludes LNG facilities used by an ultimate consumer (Chapter 4.9). | ↗ |
3. Efficiency metric documents
A sustainability filing needs the ISO/IEC 30134 part, edition and measurement boundary that apply to it. Chapter 15.1 derives the metrics, and this appendix gives their source texts. The nine-part ISO/IEC 30134 family is indexed below.
Document identity index: efficiency metrics
| Document | Kind | Issuing body | Part / edition / version | Status | As of | Access | Applicable boundary | Evidence locator |
|---|---|---|---|---|---|---|---|---|
| ISO/IEC 30134-1 | standard | ISO/IEC | 2016; ed. 2 project (AWI) under way | current | 2026-09-05 | paid | KPI boundaries. | ↗ |
| ISO/IEC 30134-2 | standard | ISO/IEC | 2026 | current | 2026-09-05 | paid | PUE. | ↗ |
| ISO/IEC 30134-3 | standard | ISO/IEC | 2016 | current | 2026-09-05 | paid | Renewable energy factor. | ↗ |
| ISO/IEC 30134-4 | standard | ISO/IEC | 2017 + Amd 1:2025 | current | 2026-09-05 | paid | Server energy efficiency. | ↗ |
| ISO/IEC 30134-5 | standard | ISO/IEC | 2017 + Amd 1:2025 | current | 2026-09-05 | paid | Server utilization. | ↗ |
| ISO/IEC 30134-6 | standard | ISO/IEC | 2021 | current | 2026-09-05 | paid | Energy reuse factor. | ↗ |
| ISO/IEC 30134-7 | standard | ISO/IEC | 2023 | current | 2026-09-05 | paid | Cooling efficiency ratio. | ↗ |
| ISO/IEC 30134-8 | standard | ISO/IEC | 2022 | current | 2026-09-05 | paid | Carbon usage effectiveness. | ↗ |
| ISO/IEC 30134-9 | standard | ISO/IEC | 2022 | current | 2026-09-05 | paid | Water usage effectiveness. | ↗ |
| EN 50600-4-1 | standard | CENELEC / BSI | 2016 | current | 2026-09-05 | paid | KPI boundaries. | ↗ |
| EN 50600-4-2 | standard | CENELEC / BSI | 2016 + A1:2019 | current | 2026-10-19 | paid | PUE; A1:2019 aligned it with the 2016 edition of ISO/IEC 30134-2. | ↗ |
| EN 50600-4-3 | standard | CENELEC / BSI | 2016 + A1:2019 | current | 2026-09-05 | paid | Renewable energy factor. | ↗ |
| EN 50600-4-6 | standard | CENELEC / BSI | 2020 | current | 2026-09-05 | paid | Energy reuse factor. | ↗ |
| EN 50600-4-7 | standard | CENELEC / BSI | 2020 | current | 2026-09-05 | paid | Cooling efficiency ratio. | ↗ |
| EN 50600-4-8 | standard | CENELEC / BSI | 2022 | current | 2026-10-19 | paid | Carbon usage effectiveness. | ↗ |
| EN 50600-4-9 | standard | CENELEC / BSI | 2022 | current | 2026-09-05 | paid | Water usage effectiveness. | ↗ |
4. Open hardware and fabric specifications
An open rack frame does not establish that its power shelf, cooling loop or fabric will work. Pin each interface document, then test the integrated rack in Chapter 7.13 and the transport in Chapter 8.4.
Document identity index: hardware and fabric specifications
| Document | Kind | Issuing body | Part / edition / version | Status | As of | Access | Applicable boundary | Evidence locator |
|---|---|---|---|---|---|---|---|---|
| OCP Open Rack V3 Base Specification | specification | OCP | 1.1 | current | 2026-09-05 | free | Rack interface. | ↗ |
| OCP Open Rack V3 HPR V2 72kW Power Shelf | specification | OCP | Rev 1.0.0 (2026-06-12); Meta contribution | current | 2026-10-17 | free | In-rack AC-to-50 V power shelf: 1 OU, six 12 kW PSUs, 60 kW at N+1 on dual 230–277 V cords. | ↗ · Claim |
| OCP ORV3 HVDC-LVDC 100kW Power Shelf | specification | OCP | 1.0.0 (2026-02-20); Meta contribution | current | 2026-10-17 | free | In-rack DC-to-48 V shelf for ±400 VDC input: 1 OU, six 18 kW PSUs, 100 kW input. | ↗ |
| OCP ORW Base Specification | specification | OCP | 1.0.1 (effective 2026-05-05) | current | 2026-10-17 | free | Wide-rack interface. | ↗ |
| OCP ORW Meta Design Specification | specification | OCP | 1.0.1 (effective 2026-05-05) | current | 2026-10-17 | free | Meta wide-rack design. | ↗ |
| OCP ORW Canister IT Gear Design Guide | guideline | OCP | 0.1 | draft | 2026-09-05 | free | IT canister design. | ↗ |
| OCP ACS Cold Plate Requirements | specification | OCP | Revision 1 | current | 2026-09-05 | free | Cold-plate qualification. | ↗ |
| OCP ACS Cold Plate Cooling Loop Requirements | specification | OCP | Revision 2 | current | 2026-09-05 | free | Cooling-loop qualification. | ↗ |
| OCP Project Deschutes CDU (Data Center Facilities) | specification | OCP | 1.0.0 (effective 2026-02-26) | current | 2026-10-17 | free | 2 MW row CDU design (Google contribution): 3 °C approach, 500 GPM, DI water or PG25. Design targets, not a vendor unit's rating. | ↗ |
| OCP Universal Quick Disconnect (UQD/UQDB) | specification | OCP | v2.0.0 (effective 2026-09-22) | current | 2026-10-17 | free | Hand-mate and blind-mate liquid couplers, sizes 02–08, single-phase water/glycol; consolidates and stays backward compatible with the v1 UQD and UQDB specifications. | ↗ |
| OCP MQD/MQDB Design Specification (MGX Quick Disconnect) | specification | OCP | 1.0.0 (Steering Committee approval 2026-10-08; cover misprints 2024) | current | 2026-10-17 | free | NVIDIA's MGX Quick Disconnect, sizes 02–04, water/glycol: MGX 1.2's busbar coolant connection and fanless I/O bays (trays use UQD 2.0.0). Mates within the MQD family only. | ↗ |
| OCP Guidelines for Using Propylene Glycol-Based Heat Transfer Fluids in Liquid Cooled Racks | guideline | OCP | Revision 2.0, v1.0.0 (2026-09-15) | current | 2026-10-17 | free | PG25/PG55 fluid properties, wetted materials, filtration, flushing and in-use limits (Table 14). Replaces the 2022 guidance. | ↗ |
| OCP Base Specification for Single Phase Water-Based Cold Plate Coolants | specification | OCP | v1.3 (effective 2026-08-06) | current | 2026-10-17 | free | Fresh-fluid limits and certificate of analysis for treated-water cold-plate coolants. | ↗ |
| OCP Single-Phase Direct-to-Chip Cold Plate Test Specification | specification | OCP | 1.0.0 (effective 2026-09-03) | current | 2026-10-17 | free | Cold-plate qualification tests: leak, pressure decay, burst, thermal resistance, pressure drop, flatness, retention and temperature cycling. | ↗ |
| OCP Rope Leak Sensor Base Specification | specification | OCP | 1.0.0 (effective 2026-02-02) | current | 2026-10-17 | free | Rope leak sensors: mechanical, signal interface, onboard power, firmware configuration and false-alarm reduction. | ↗ |
| OCP Mt. Diablo (formerly Diablo 400) | specification | OCP | 1.0.0 (2026-10-08); supersedes v0.7.0 | current | 2026-10-16 | free | Sidecar power rack that takes AC and delivers differential 800 VDC (±400 VDC about a midpoint); rated 800 kW to 1.1 MW at 480 VAC. | ↗ · Claim |
| OCP Solid State Transformer (SST) Specification | specification | OCP | Rev 0.3.0 (effective 2026-06-22); Google, Microsoft, NVIDIA | current | 2026-10-17 | free | Black-box MV-to-800 VDC SST requirements: 5 MW at 13.8 kV, 5/10 MW at 34.5 kV; efficiency, grounding, overload and ride-through. | ↗ · Claim |
| OCP DCF Low Voltage Direct Current Power Distribution white paper | report | OCP (Data Center Facility, Power Distribution sub-project) | v1.1.0 (2026-09-02); v1.0 2026-03-04 | current | 2026-10-17 | free | LVDC distribution up to 1,500 VDC; proposes an 800 VDC voltage band with 840 VDC (U5) as the protection ceiling. | ↗ · Claim |
| OCP MGX Accelerated Computing Rack and Trays Design Specification | specification | OCP | MGX 1.2, revision 1.2.0 (effective 2026-10-06); rev. 1.1 (2024-08-29) is the GB200 NVL72 contribution | current | 2026-10-17 | free | MGX rack/tray interfaces: ORV3-based 19-inch frame, 48 VDC liquid-cooled busbar to 5,000 A, racks to 250 kW. Excludes power shelves and CDUs; not fully compatible with rev. 1.1. | ↗ · Claim · Rev. 1.1 · Rev. 1.1 product (GB200 NVL72) |
| OCP Datacenter NVMe SSD Specification | specification | OCP | v2.7 (revision 2025-10-24; document dated 2026-01-08); Meta, Microsoft, Google, HPE and Dell | current | 2026-10-17 | free | Hyperscaler requirements for PCIe NVMe SSDs beyond the NVMe standards: media-bytes-written (WAF), latency monitor, telemetry, firmware update; FDP optional (Chapter 9.3, 9.7). | ↗ |
| OCP CMS Composable Memory Fabric Management Software and APIs Architecture | specification | OCP | v1.1 (2024-11-14); Seagate contribution to the Composable Memory Systems sub-project | current | 2026-10-17 | free | Redfish APIs for composing pooled CXL memory regions from a Composable Memory Appliance; the CMS appliance charter targets under 400 ns round trip (Chapter 9.7). | ↗ · CMS project |
| JEDEC JESD328 LPDDR5/5X SOCAMM2 Common Standard | standard | JEDEC (JC-45) | Version 1.00 (published June 2026) | current | 2026-10-17 | free | Electrical and mechanical requirements for LPDDR5/5X SOCAMM2 modules used as main memory in data-center and AI servers. Download needs registration. | ↗ |
| JEDEC JESD270-4 High Bandwidth Memory (HBM4) DRAM | standard | JEDEC | Published 2025-04-16 | current | 2026-10-19 | free | HBM4 device standard: 2,048-bit interface, 4- to 16-high stacks of 24 or 32 Gb dies (up to 64 GB per stack); Vera Rubin’s memory (Chapter 7.6). Download needs registration. | ↗ |
| PCI Express Base Specification | specification | PCI-SIG | 7.0 (2025-06-11); the first PCIe 6.0 enterprise SSDs entered volume production in 2026 | current | 2026-10-19 | member | Host I/O link; 7.0 runs 128 GT/s PAM4 with FLIT encoding, up to 512 GB/s bidirectional at x16 (Chapter 9.3). | ↗ |
| Compute Express Link (CXL) Specification | specification | CXL Consortium | 4.0 (2025-11-18) | current | 2026-10-19 | free | Cache-coherent memory and accelerator attach over PCIe signaling; 3.x added multi-host memory sharing, and 4.0 doubles the rate to 128 GT/s (Chapter 9.7). | ↗ |
| OCP S.A.F.E. framework | guideline | OCP | 1.2 (2025-08) | current | 2026-09-05 | free | Hardware security appraisal. | ↗ |
| Caliptra specification | specification | CHIPS Alliance / OCP | 2.1; main spec v1.0 | current | 2026-09-05 | free | Silicon root of trust. | ↗ |
| OCP L.O.C.K. (Layered Open-source Cryptographic Key management) | specification | OCP (NVMe Project; reference code in CHIPS Alliance Caliptra) | 1.0 (2025-09); 1.1 at release candidate 4 (effective 2026-06-03) | current | 2026-10-17 | free | SSD media-encryption-key management on Caliptra: keys isolated from drive firmware; compatible with TCG Opal, Enterprise and Key Per I/O (Chapter 11.5). | ↗ |
| OCP OBMF-ICP (Open Boot and Management Framework Interface Consolidation Protocol) | specification | OCP | 1.0.0 (2026-10-07); editors Intel and NVIDIA | current | 2026-10-17 | free | Host-to-BMC sideband (GPIO, I2C, UART, SPI, TPM, IPMI) as channels over one link such as USB; no native encryption, so use an SPDM session or channel protection (Chapter 11.4). | ↗ |
| OCP RAS API Specification | specification | OCP | v0.96.0 (2026-10-09), for contribution to OCP; endpoint discovery deferred to the next version | draft | 2026-10-17 | free | Vendor-neutral fault management for CPUs, GPUs and accelerators: UEFI CPER error records and CPAD actions over Redfish, PLDM or other transports (Chapter 10.6). | ↗ |
| UEC Specification 1.0 | specification | Ultra Ethernet Consortium | 1.0 (2025-06-11) | superseded | 2026-10-19 | free | First public release of the Ethernet transport for AI/HPC. | ↗ · Claim |
| UEC Specification 1.1 | specification | Ultra Ethernet Consortium | 1.1 (2026-10-12) | current | 2026-10-19 | free | Ethernet transport for AI/HPC: Unified Local scale-up profile, in-network collectives, CSIG signaling, programmable congestion control; check which profiles a product supports. | ↗ · Claim |
| IBTA InfiniBand Architecture Volume 1 | specification | IBTA | Release 2.1 | current | 2026-09-05 | member | Transport and architecture. | ↗ |
| IBTA InfiniBand Architecture Volume 2 | specification | IBTA | Release 2.1 | current | 2026-09-05 | member | Physical links. | ↗ |
| IEEE 802.3 | standard | IEEE | 2022 | current | 2026-09-05 | free | Ethernet MAC and PHY. | ↗ |
| IEEE 802.3df | standard | IEEE | 2024 | current | 2026-09-05 | free | Ethernet high-speed PHY amendment. | ↗ |
| IEEE P802.3dj | standard | IEEE | D3.3 | draft | 2026-10-11 | paid | Next Ethernet PHY amendment. | ↗ · Draft access |
| IEEE 802.1Qbb | standard | IEEE | 2011 | superseded | 2026-10-19 | paid | Priority flow control. Folded into the 802.1Q bridging standard in 2014; 802.1Q-2022 is the current revision (Chapter 8.6). | ↗ |
| IEEE 802.1Q | standard | IEEE | 2022 (approved 2022-09-21) | current | 2026-10-19 | free | Bridges and bridged networks; since the 2014 revision it carries priority flow control (formerly 802.1Qbb) and ETS (formerly 802.1Qaz) (Chapter 8.6). | ↗ |
| IEEE 1588 | standard | IEEE | 2019 | current | 2026-09-05 | paid | Packet-network clock synchronization. | ↗ |
| OCP TAP white paper: Time Synchronization in AI Distributed Infrastructure | report | OCP (Time Appliances Project) | v0.9.1 (2026-10-01) | draft | 2026-10-17 | free | Where shared time helps (observability, latency attribution, time-triggered functions) and where it does not (collective, checkpoint, causal-trace correctness); not a spec. | ↗ |
| OIF 800ZR | specification | OIF | OIF-800ZR-01.0 (2024) | current | 2026-09-05 | free | Coherent optical interoperability. | ↗ |
| UALink 200G | specification | UALink Consortium | 1.0 | current | 2026-09-05 | free | Initial scale-up protocol. | ↗ · Claim |
| UALink Common | specification | UALink Consortium | 2.0 | current | 2026-09-05 | free | Common scale-up semantics. | ↗ |
| UALink 200G DL/PL | specification | UALink Consortium | 2.0 | current | 2026-09-05 | free | Data-link and physical layers. | ↗ |
| UALink 128G DL/PL | specification | UALink Consortium | 1.0 | current | 2026-09-05 | free | Data-link and physical layers. | ↗ |
| UALink Chiplet | specification | UALink Consortium | 1.01 | current | 2026-09-05 | free | Chiplet integration. | ↗ |
| OCP Foundation Chiplet System Architecture (FCSA) | specification | OCP | 1.1.0 (effective October 2026; released 2026-10-09); 1.0.0 released 2026-02-10 | current | 2026-10-17 | free | ISA-neutral chiplet types and inter-chiplet interfaces, with memory traffic over UCIe 1.1 streaming or BoW; compliance levels 0, 1 and full. Not a PHY or package spec. | ↗ |
| OCP Bunch of Wires (BoW) PHY Specification | specification | OCP | 2.0 (2023-03-01) | current | 2026-10-17 | free | Open die-to-die chiplet PHY: slices, wires, modes and reach. The memory addendum and the transaction/link-layer spec are separate documents. | ↗ |
| UCIe Specification | specification | UCIe Consortium | 3.0 (2025-08-05) | current | 2026-10-19 | free | Die-to-die chiplet interconnect; 3.0 adds 48 and 64 GT/s, runtime recalibration and 100 mm sideband reach (Chapter 7.7). | ↗ · Claim |
| UALink Manageability | specification | UALink Consortium | 1.0 | current | 2026-09-05 | free | Fabric management. | ↗ |
| OCP ESUN Network Operator Requirements Base Specification | specification | Open Compute Project | 1.0 (effective 2026-02-09; released 2026-03-10) | current | 2026-10-17 | free | Ethernet scale-up switch/network side; endpoint transport is SUE-T. ESUN 1.1 announced as close, not published. | ↗ |
| SUE-T (Scale-Up Ethernet Transport) Base Specification | specification | Open Compute Project (contributors Broadcom, Arista) | 1.0.0 (effective 2026-10-08) | current | 2026-10-17 | free | Scale-up endpoint transport (load/store/atomics over ESUN, UEC UFH or UDP/IP); does not certify any XPU implementation. | ↗ |
| OCP Open Switch Platform Architecture (OSPA) | specification | Open Compute Project (contributors Meta, Microsoft, Alibaba) | Revision 1.0.0 candidate (2026-09-13; 0.9.0 2026-08-06) | draft | 2026-10-17 | free | Switch platform management layer: power, hardware access, inventory, thermal, firmware recovery, diagnostics; in OCP Foundation review, not a published OCP spec. | ↗ · OCP announcement |
| IEEE P802.1Qdw | standard | IEEE | PAR approved 2022-09-21; no draft produced; withdrawal requested 2026-03-05 | withdrawal requested | 2026-10-16 | unpublished | Source flow control project; no published standard. Successor: P802.1EJ Backward Notification (PAR approved 2026-09-25; ballot draft targeted 2028-07). | ↗ |
| CSIG Internet-Draft | specification | Individual authors; IETF Datatracker | draft-ravi-ippm-csig-01 (2024-02-02) | historical | 2026-10-19 | free | Expired 2024-08-05; experimental proposal, not an RFC. UE 1.1 (2026-10-12) now includes CSIG congestion signaling. | ↗ |
| OIF ELSFP 2.0 | specification | OIF | OIF-ELSFP-02.0 (2025-01) | current | 2026-09-05 | free | External laser interface; does not qualify optical-engine FRUs. | ↗ |
| OIF CMIS (Common Management Interface Specification) | specification | OIF | OIF-CMIS-05.4 (May 2026) | current | 2026-10-19 | free | Host-to-module management for pluggable and on-board optics (QSFP-DD, OSFP), including VDM diagnostics such as media-side pre-FEC BER (Chapter 13.7). | ↗ |
| Open CPX Specification | specification | Open CPX MSA (promoters Ciena, Coherent, Marvell, Molex, Samtec, TeraHop) | Rev 1.0 (approved 2026-09-16) | current | 2026-10-17 | free | Co-packaged/near-package socket and module: 6.4 or 7.2 Tb/s (32 or 36 × 212.5 Gb/s), internal or external laser; modules not expected to be hot-pluggable. | ↗ |
| UET 1.0.3 | specification | Ultra Ethernet Consortium | UE 1.0.3 transport layer (2026-07-16); superseded by UE 1.1 (2026-10-12) | superseded | 2026-10-12 | free | Transport portion of UE specification; profile support separately qualified. | ↗ |
| TIA 400GBASE-DR4 application overview | report | TIA FOTC | Undated; IEEE 802.3bs-2017 application | current | 2026-09-05 | free | Four SMF lanes per direction; eight fibers; application note. | ↗ |
| TIA 800GBASE-DR8 application overview | report | TIA FOTC | Undated; IEEE 802.3df-2024 application | current | 2026-09-05 | free | Eight SMF lanes per direction; sixteen fibers; application note. | ↗ |
| IEEE 802.3bs | standard | IEEE | 2017; incorporated into IEEE 802.3-2022 | superseded | 2026-09-05 | paid | 200/400 Gb/s Ethernet amendment, including DR4. | ↗ |
| IEEE P802.3dv | standard | IEEE | PAR approved 2026-09-25; no draft yet | draft | 2026-10-16 | unpublished | 400 Gb/s per lane signaling: electrical and SMF optical links to 500 m; no published standard. | ↗ |
Caliptra supplies a silicon root of trust, and S.A.F.E. supplies third-party design appraisal. Their boundaries are separate; apply them as described in Chapter 11.4 and Chapter 11.3.
5. Security standards and legal instruments
July 1, 2028
CIP-002-8 future enforcement date in NERC’s June 2026 bulletin
Apply the version enforceable today and check that the entity and system are in scope. Approval and future enforcement are separate events.
Scope & caveats
Applies only to entities/systems within the standard’s applicability; approval is not the compliance date.
Tenant, data and operator role determine applicability: SOC 2/ISO for commercial operations, FedRAMP/CMMC for relevant US-government work, NERC CIP for applicable registered grid functions, and ISO/IEC 42001 for AI management. Their authorities, scopes and audit duties differ. For OT, IEC 62443-2-1 governs the owner’s security program and IEC 62443-3-2 governs system-design risk assessment. Neither replaces the other. Chapter 11.11 resolves legal applicability. FedRAMP 20x: Classes A–C are available under finalized rules, Class D comes in Phase 4 (est. FY27), and new Rev5 certifications close 11 June 2027.
Document identity index: security and law
| Document | Kind | Issuing body | Part / edition / version | Status | As of | Access | Applicable boundary | Evidence locator |
|---|---|---|---|---|---|---|---|---|
| IEC 62443-3-3 | standard | IEC / ISA | 2013 | current | 2026-09-05 | paid | Control-system security requirements. | ↗ |
| ISO/IEC 27001 | standard | ISO/IEC | 2022 + Amd 1:2024 | current | 2026-09-05 | paid | Information-security management. | ↗ |
| ISO/IEC 42001 | standard | ISO/IEC | 2023 | current | 2026-09-05 | paid | AI management system. | ↗ |
| EU AI Act | regulation | EU | Regulation (EU) 2024/1689 | current | 2026-09-05 | free | AI-system and GPAI obligations. | ↗ |
| U.S. Copyright Office report on generative AI training | report | U.S. Copyright Office | Copyright and Artificial Intelligence, Part 3: Generative AI Training (pre-publication version, 2025-05-09) | draft | 2026-10-19 | free | US agency analysis of fair use for AI training data, including acquisition from pirated sources; guidance, not binding law (Chapter 10.10). | ↗ |
| NIS2 | regulation | EU | Directive (EU) 2022/2555 | current | 2026-09-05 | free | Cybersecurity duties for in-scope entities. | ↗ |
| EED | regulation | EU | Directive (EU) 2023/1791; Delegated Reg. (EU) 2024/1364 | current | 2026-10-16 | free | Energy efficiency; data centers at ≥500 kW IT must report. Commission adopted rating-scheme act C(2026) 3472 on 2026-09-21; under Parliament and Council scrutiny, not in force. | ↗ · Delegated Regulation |
| EnEfG | regulation | Germany | Act of 13 November 2023 (BGBl. 2023 I No. 309) | current | 2026-10-16 | free | German PUE, ERF and renewable-electricity duties (§11). Amendment bill Drs. 21/8027 (2026-09-16) pending, not enacted. | ↗ |
| IEC 62443-2-1 | standard | IEC | 2024; ed. 2.0 | current | 2026-09-05 | paid | IACS asset-owner security program. | ↗ |
| IEC 62443-3-2 | standard | IEC | 2020; ed. 1.0 | current | 2026-09-05 | paid | IACS system-design risk assessment, zones and conduits. | ↗ |
| BACnet Secure Connect (BACnet/SC) | standard | ASHRAE | ASHRAE 135-2024 (current; BACnet/SC added by Addendum 135-2016bj, approved 2019-11-18, consolidated in 135-2020) | current | 2026-10-19 | paid | BACnet over WebSockets and TLS with device certificates (Chapter 11.10). | ↗ |
| Modbus Security Protocol | specification | Modbus Organization | MB-TCP-Security v36 (2021-07-30) | current | 2026-10-19 | free | Modbus over TLS with X.509v3 certificates, port 802 (Chapter 11.10). | ↗ |
| NIST SP 800-88 | guideline | NIST | Rev. 2 (2025-09); supersedes Rev. 1 | current | 2026-10-16 | free | Media sanitization methods: Clear, Purge and Destroy (Chapter 14.9). | ↗ |
| NERC CIP-002 | standard | NERC / FERC | CIP-002-5.1a in force; CIP-002-8 enforceable 2028-07-01 | current | 2026-10-19 | free | Sorts BES Cyber Systems into high, medium and low impact, which decides how much of CIP-003 to CIP-013 and CIP-015 applies. CIP-014 sets its own scope (Chapter 4.3). | ↗ · Claim |
| AICPA SOC 2 (Trust Services Criteria) | guideline | AICPA | 2017 criteria with revised points of focus (2022) | current | 2026-10-19 | free | Auditor attestation on a service organization’s controls (security, availability, processing integrity, confidentiality, privacy); an opinion, not a certification (Chapter 11.11). | ↗ |
| FedRAMP (Rev5 and 20x) | regulation | GSA FedRAMP | 20x Classes A–C open, Class D in Phase 4; new Rev5 applications close 2027-06-11 | current | 2026-10-19 | free | US federal cloud-service authorization; 20x assesses automatable Key Security Indicators instead of a control-count package (Chapter 11.11). | ↗ · Claim |
| CMMC (32 CFR Part 170) | regulation | US Department of War | Program rule effective 2024-12-16; Phase II third-party certification suspended 2026-07-13 | current | 2026-10-19 | free | Cybersecurity levels for defense contractors; Level 2 assesses the 110 NIST SP 800-171 Rev 2 requirements, and Phase I self-assessment still applies (Chapter 11.11). | ↗ · Claim |
| NIST SP 800-53 | guideline | NIST | Rev. 5, release 5.2.0 (2025-08-27) | current | 2026-10-19 | free | Security and privacy control catalog behind FedRAMP baselines and the SL3/SL5 model-weight proposals (Chapter 11.8). | ↗ |
| NIST Cybersecurity Framework (CSF) | guideline | NIST | 2.0 (CSWP 29, 2024-02-26) | current | 2026-10-19 | free | Six functions (Govern, Identify, Protect, Detect, Respond, Recover) for organizing a security program; incident-response guidance SP 800-61r3 maps onto them (Chapter 11.12). | ↗ |
| EU Cyber Resilience Act | regulation | EU | Regulation (EU) 2024/2847 | current | 2026-10-19 | free | Products with digital elements: exploited-vulnerability and severe-incident reports from 2026-09-11 (24 h, then 72 h); most other duties from 2027-12-11 (Chapter 11.11). | ↗ |
| ANSSI SecNumCloud | certification scheme | ANSSI (France) | Référentiel v3.2 (2022-03-08) | current | 2026-10-19 | free | French cloud qualification incl. immunity-from-non-EU-law criteria (ch. 19.6) (Chapter 11.11). | ↗ |
| BSI C5 | standard | BSI (Germany) | C5:2026 (final, 2026-03; recommended for audit periods ending on or after 2027-06-01); C5:2020 until then | current | 2026-10-19 | free | Cloud Computing Compliance Criteria Catalogue; required for cloud processing of health/social data under §393 SGB V since 2024-07-01 (Chapter 11.11). | ↗ |
| EUCS | certification scheme | ENISA / European Commission (Cybersecurity Act) | Candidate scheme | draft | 2026-10-19 | free | EU cloud certification scheme, not adopted; sovereignty criteria dropped in 2024 (Chapter 11.11). | ↗ |
| MITRE ATT&CK | knowledge base | MITRE | v20.0 (2026-10-13) | current | 2026-10-19 | free | Adversary tactics and techniques for enterprise IT (Chapter 11.12). | ↗ |
| MITRE ATT&CK for ICS | knowledge base | MITRE | ATT&CK v20.0 (2026-10-13; ICS domain) | current | 2026-10-19 | free | Industrial-control-system technique matrix (Chapters 11.10 and 11.12). | ↗ |
| MITRE ATLAS | knowledge base | MITRE | Data release v2026.09 (2026-09-15) | current | 2026-10-19 | free | Adversarial Threat Landscape for Artificial-Intelligence Systems: attacks on models and training pipelines (Chapter 11.12). | ↗ |
May 2024
TIA-942-C: AI growth and sustainability; Rated-1..4 naming dates to the 2014 TIA/Uptime separation
Scope & caveats
TIA announced Revision C on May 9, 2024. Rated terminology predates this edition; TIA/Uptime announced the Tier-name separation in March 2014. Licensed clause-level conformance and local adoption require separate records.
5th ed. (2021)
ASHRAE fifth edition: W17/W27/W32/W40/W45/W+; new W40 and H1
Scope & caveats
The fifth edition revised an existing liquid-class scheme; liquid classes W1–W5 predate it. The same edition adds the H1 air class (15–25 °C allowable, 18–22 °C recommended).
1.0.0
OCP Mt. Diablo: 1.0.0 since 2026-10-08 (renamed from Diablo 400), replacing v0.7.0; power racks of 800 kW to 1 MW+
Scope & caveats
Final 1.0.0 base specification, renamed from Diablo 400. It supersedes v0.5.2 (May 2025) and v0.7.0 (March 2026). Scope is 800 kW to 1 MW+ per power rack, which can be paralleled; Table 5 gives 800 kW–1.1 MW at 480 VAC and up to 718 kW at 400 VAC.
Chapter 0.4 covers how to bring a standard into a project. Related chapters: resilience in Chapter 0.5; DLC in Chapter 5.4; heat reuse in Chapter 5.9; water accounting in Chapter 15.4; DC power in Chapter 4.7; grid-asset scope in Chapter 4.3.
Cite this chapter
Fehn, J. (2026). Standards & Specifications Cross-Reference Matrix (Chapter A). The Definitive Guide to AI Data Centers. https://aidatacenterguide.com/appendix-appendices-and-reference-data/a-standards-and-specifications-cross-reference-matrix (accessed 2026-10-25).
@misc{aidc-A,
author = {Fehn, Jacob},
title = {Standards & Specifications Cross-Reference Matrix (Chapter A)},
howpublished = {The Definitive Guide to AI Data Centers},
year = {2026},
url = {https://aidatacenterguide.com/appendix-appendices-and-reference-data/a-standards-and-specifications-cross-reference-matrix},
note = {Accessed 2026-10-25}
}