15 domains · Facility engineering

ENV Environmental and Resource Performance

6 families and 24 controls. Critical to CG-04 Life safety and hazardous energy.

Proposed text. Requirements are from registry v1.1 (status CANDIDATE), proposed under amendment AMD-002. Intervals and thresholds are set by the assessed organisation in its capability profile. The approved v1.0 baseline uses the same identifiers.

ENV-01 Environmental operating conditions

MCF-ENV-001 Temperature Control

Claim operationAssurance level AL4Tier CP-3Evidence floor S4Supports CG-06, CG-08

Objective. Demonstrate that air inlet temperatures at IT equipment and liquid coolant supply temperatures to cold plates or immersion tanks stay within the declared envelope and rate-of-change limits in all declared operating states, measured where the equipment experiences them.

Requirement and evidence

The facility operator shall declare, for each hall and liquid loop, the environmental class (ASHRAE air-cooling class and liquid-cooling W class, or OEM envelope where more restrictive) and shall measure inlet air temperature at representative rack inlets and coolant supply temperature at the technology cooling system interface. The facility operator shall alarm excursions and rates of change outside the envelope, investigate them, and report excursion time per hall at the declared interval.

Evidence required: E1 Documentary and declarative; E2 Configuration and technical state; E3 Operational and observational. Optional: E7. Operating states: NORMAL, DEGRADED, MAINTENANCE.

MCF-ENV-002 Humidity Control

Claim operationAssurance level AL4Tier CP-3Evidence floor S3Supports CG-06

Objective. Ensure moisture conditions avoid condensation on liquid-cooled components and pipework, electrostatic discharge risk at low humidity, and corrosion acceleration at high humidity.

Requirement and evidence

The facility operator shall control and monitor dew point and relative humidity in IT spaces within the declared envelope and shall maintain coolant supply temperatures above room dew point by the declared margin wherever uninsulated liquid-cooling components are exposed to room air. The facility operator shall alarm when the margin is lost and shall define the response.

Evidence required: E2 Configuration and technical state; E3 Operational and observational. Optional: E1. Operating states: NORMAL, DEGRADED.

MCF-ENV-003 Particulate and Corrosion

Claim operationAssurance level AL4Tier CP-3Evidence floor S3Supports CG-08

Objective. Ensure airborne particulate and gaseous contaminants are controlled so that hardware reliability is not degraded, particularly where economisation or high airflow increases outdoor air exposure.

Requirement and evidence

The facility operator shall measure gaseous corrosivity by copper and silver reactivity coupons or real-time monitors and particulate cleanliness at the declared interval, shall maintain filtration to the declared grade, and shall act when the severity level exceeds the declared class, including restricting economiser operation during external pollution events.

Evidence required: E3 Operational and observational; E4 Validation and test. Optional: E1. Operating states: NORMAL.

MCF-ENV-004 Vibration and Acoustic Conditions

Claim implementationAssurance level AL3Tier CP-2Evidence floor S3Supports CG-08

Objective. Ensure vibration and sound levels do not degrade storage and IT equipment (including acoustic damage to hard disk drives during gaseous suppression discharge), do not exceed occupational noise limits in dense halls, and comply with boundary noise limits in permits.

Requirement and evidence

The facility owner shall specify suppression discharge nozzles and agent release rates that keep sound pressure at storage equipment below the storage OEM threshold, shall measure occupational noise exposure in halls and plant rooms against regulatory action values and provide hearing protection and signage where exceeded, and shall demonstrate that site boundary noise from generators, heat rejection and transformers complies with planning or permit limits.

Evidence required: E1 Documentary and declarative; E3 Operational and observational. Optional: E4, E5. Operating states: NORMAL, EMERGENCY, MAINTENANCE.

ENV-02 Energy performance

MCF-ENV-005 PUE Measurement

Claim operationAssurance level AL4Tier CP-3Evidence floor S3

Objective. Ensure power usage effectiveness is measured according to ISO/IEC 30134-2 with a declared measurement category, boundary and period, so that reported values are comparable, traceable and not distorted by metering gaps or boundary choices.

Requirement and evidence

The energy manager shall calculate PUE as annual total facility energy divided by annual IT equipment energy per ISO/IEC 30134-2, shall declare the measurement category and the metering points used for IT energy, shall include all energy sources (grid, on-site generation, fuel for generators), and shall report the value with category, period and data completeness.

Evidence required: E1 Documentary and declarative; E2 Configuration and technical state; E3 Operational and observational; E7 Derived and analytical. Optional: E5. Operating states: NORMAL.

MCF-ENV-006 Energy Allocation

Claim implementationAssurance level AL3Tier CP-2Evidence floor S3

Objective. Ensure energy consumed by shared infrastructure is allocated to tenants, clusters or services by a documented and metered method, so that per-capability energy and emissions are defensible.

Requirement and evidence

The energy manager shall define an allocation method for shared facility energy (cooling, losses, lighting, offices) to tenants or AI clusters, shall base allocation on sub-metered data wherever metering exists, and shall report unallocated energy below the declared threshold.

Evidence required: E1 Documentary and declarative; E2 Configuration and technical state; E7 Derived and analytical. Optional: E3. Operating states: NORMAL.

MCF-ENV-007 Efficiency Under Load

Claim operationAssurance level AL4Tier CP-3Evidence floor S3

Objective. Ensure facility efficiency is characterised across the load range actually experienced by AI deployments (partial occupancy during ramp-up, variable training load) and that heat reuse, where claimed, is measured.

Requirement and evidence

The energy manager shall report PUE or partial PUE at the declared IT load points, shall document the efficiency curves of major equipment (UPS, chillers, CDUs) at those points, and, where heat is exported for reuse, shall measure exported heat energy and report the energy reuse factor per ISO/IEC 30134-6.

Evidence required: E2 Configuration and technical state; E3 Operational and observational; E7 Derived and analytical. Optional: E1. Operating states: NORMAL.

MCF-ENV-008 Resilience-Efficiency Trade-Off

Claim designAssurance level AL2Tier CP-2Evidence floor S3Supports CG-05, CG-06, CG-14

Objective. Ensure that efficiency measures (UPS eco-mode, raised supply temperatures, reduced running redundant units, economiser hours, power capping) are evaluated for their effect on power and thermal resilience before adoption, so that efficiency gains do not silently consume resilience.

Requirement and evidence

The facility owner shall require a resilience impact assessment for every efficiency measure affecting power or cooling, reviewed by the electrical and mechanical engineers responsible for CG-05 and CG-06 evidence, stating the effect on transfer behaviour, ride-through, thermal ride-through time and redundancy in each declared operating state. The facility owner shall approve the measure under change control only when the assessment shows declared tolerances are still met.

Evidence required: E1 Documentary and declarative; E7 Derived and analytical. Optional: E4. Operating states: NORMAL, DEGRADED, EMERGENCY.

ENV-03 Water performance

MCF-ENV-009 Water Source and Quality

Claim operationAssurance level AL4Tier CP-3Evidence floor S3Supports CG-06, CG-04

Objective. Ensure water supplies for heat rejection, adiabatic cooling and humidification are identified, of controlled quality, and treated to prevent scaling, corrosion, biofouling and Legionella risk.

Requirement and evidence

The facility operator shall document each water source (mains, borehole, reclaimed), its contracted or permitted volume and quality, and shall operate a water treatment programme with the declared monitoring frequency for chemistry and microbiology, including a Legionella risk assessment and control scheme for evaporative systems, reviewed by a competent person.

Evidence required: E1 Documentary and declarative; E3 Operational and observational. Optional: E5. Operating states: NORMAL, MAINTENANCE.

MCF-ENV-010 WUE Measurement

Claim operationAssurance level AL4Tier CP-3Evidence floor S3

Objective. Ensure water usage effectiveness is measured per ISO/IEC 30134-9 with complete metering of site water inputs, so that water claims are comparable and traceable.

Requirement and evidence

The energy and sustainability manager shall calculate WUE as annual site water use divided by annual IT equipment energy per ISO/IEC 30134-9, shall meter every water input, shall state which uses are included (heat rejection, humidification, domestic) and shall report data completeness. Where source-side water (water used in electricity generation) is reported, the basis shall be stated separately.

Evidence required: E2 Configuration and technical state; E3 Operational and observational; E7 Derived and analytical. Optional: E1. Operating states: NORMAL.

MCF-ENV-011 Water Scarcity Response

Claim resilienceAssurance level AL5Tier CP-4Evidence floor S4Supports CG-06, CG-03

Objective. Demonstrate that the site maintains heat-rejection capacity for the declared outcomes when water supply is restricted or interrupted, using storage, alternative sources or dry operation with a known capacity penalty.

Requirement and evidence

The facility owner shall maintain a water scarcity response plan stating on-site storage autonomy at design-day consumption, alternative sources, the capacity of heat rejection in water-free or reduced-water mode at design ambient, and the load-reduction actions if that capacity is below the declared IT load. The facility operator shall exercise switchover to reduced-water mode at the declared interval.

Evidence required: E1 Documentary and declarative; E3 Operational and observational; E4 Validation and test. Optional: E7. Operating states: DEGRADED, EMERGENCY.

MCF-ENV-012 Discharge Control

Claim operationAssurance level AL4Tier CP-3Evidence floor S3

Objective. Ensure discharges of cooling-tower blowdown, treated water, glycol and stormwater comply with permits and that accidental releases of coolant, fuel or fire-water are contained.

Requirement and evidence

The facility operator shall hold and comply with discharge consents for trade effluent and surface water, shall monitor discharge quality at the declared frequency, shall provide interceptors and containment for fuel, glycol and potentially contaminated fire-fighting water, and shall report permit breaches to the regulator as required.

Evidence required: E1 Documentary and declarative; E3 Operational and observational. Optional: E5. Operating states: NORMAL, EMERGENCY.

ENV-04 Carbon and resource reporting

MCF-ENV-013 Carbon Accounting Boundary

Claim designAssurance level AL2Tier CP-1Evidence floor S3

Objective. Ensure the organisational and operational boundary for greenhouse gas accounting of AI capability is defined consistently with the GHG Protocol, including colocation, leased and on-site generation emissions, so that carbon usage effectiveness and footprint claims are well-founded.

Requirement and evidence

The sustainability manager shall define the consolidation approach (operational or financial control, or equity share), the Scope 1 (generator fuel, refrigerant leakage), Scope 2 (location-based and market-based) and relevant Scope 3 categories (purchased hardware, construction, upstream fuel) for each site, shall state exclusions with justification, and shall calculate CUE per ISO/IEC 30134-8 on the declared basis.

Evidence required: E1 Documentary and declarative; E7 Derived and analytical. Optional: E5. Operating states: NORMAL.

MCF-ENV-014 Energy Attribute Evidence

Claim implementationAssurance level AL3Tier CP-2Evidence floor S3

Objective. Ensure claims of renewable or carbon-free electricity are backed by retired energy attribute certificates or contractual instruments matched to consumption by the declared temporal and geographic rules, without double counting.

Requirement and evidence

The sustainability manager shall hold evidence of cancellation or retirement of energy attribute certificates (for example guarantees of origin or RECs) or of contractual instruments (PPAs) for every claimed MWh, shall match them to consumption by the declared temporal granularity (annual or hourly) and market boundary, and shall ensure no instrument is claimed by another party.

Evidence required: E1 Documentary and declarative; E2 Configuration and technical state; E7 Derived and analytical. Optional: E5. Operating states: NORMAL.

MCF-ENV-015 Embodied Resource Data

Claim designAssurance level AL2Tier CP-1Evidence floor S2

Objective. Ensure embodied carbon and material data for buildings, plant and AI hardware are collected on a consistent life-cycle basis so that lifecycle footprint and refresh decisions are informed.

Requirement and evidence

The sustainability manager shall collect embodied-impact data for buildings and major plant from environmental product declarations or LCA studies, and for AI hardware from OEM product carbon footprints, using a documented life-cycle method, and shall report coverage by mass or spend.

Evidence required: E1 Documentary and declarative; E7 Derived and analytical. Optional: E5. Operating states: NORMAL.

MCF-ENV-016 Reporting Traceability

Claim operationAssurance level AL4Tier CP-3Evidence floor S3

Objective. Ensure every reported environmental metric (energy, PUE, WUE, CUE, REF, ERF, emissions) traces to source meter data and calculation, and that restatements are controlled and disclosed, including for regulatory data-centre reporting.

Requirement and evidence

The sustainability manager shall maintain a reporting register that links each reported metric to its calculation, source data and approver, shall retain data for the declared period, shall restate when errors exceed the declared threshold, and shall meet the content and timing of applicable regulatory reporting (for example EU Energy Efficiency Directive data-centre reporting where in scope).

Evidence required: E1 Documentary and declarative; E3 Operational and observational; E7 Derived and analytical. Optional: E5. Operating states: NORMAL.

ENV-05 Hazardous materials and waste

MCF-ENV-017 Battery Materials

Claim operationAssurance level AL4Tier CP-3Evidence floor S4Supports CG-04

Objective. Ensure batteries in storage, transport, quarantine and end of life (UPS strings, BESS modules, rack battery backup units, spares) are inventoried, stored at safe state of charge, segregated when damaged and returned or recycled under applicable battery regulation.

Requirement and evidence

The facility operator shall maintain an inventory of batteries held outside service, shall store lithium-ion spares at or below the declared state of charge in a designated, detected and separated location, shall quarantine damaged or swollen cells in a fire-rated container away from critical plant, and shall transfer end-of-life batteries only to authorised recyclers with documentation meeting applicable battery and waste regulation.

Evidence required: E1 Documentary and declarative; E3 Operational and observational. Optional: E5. Operating states: NORMAL, MAINTENANCE.

MCF-ENV-018 Refrigerants and Coolants

Claim operationAssurance level AL4Tier CP-5Evidence floor S4Critical to CG-04

Objective. Ensure refrigerants, glycols and dielectric coolants are inventoried, contained, leak-checked and handled so that toxicity, flammability (including A2L refrigerants), asphyxiation and environmental hazards are controlled for people and plant.

Requirement and evidence

The facility operator shall maintain an inventory of refrigerant charge per system (type, mass, CO2-equivalent, ISO 817/ASHRAE 34 safety class) and of coolants and dielectric fluids, shall leak-check refrigerant systems at the frequencies required by applicable regulation, shall provide refrigerant detection, alarms and ventilation in machinery rooms and occupied spaces where concentration could exceed the practical limit, shall use only certified technicians for refrigerant work, and shall hold safety data sheets and handling procedures for every coolant.

Evidence required: E1 Documentary and declarative; E3 Operational and observational; E4 Validation and test; E5 Independent and third-party. Optional: E2. Operating states: NORMAL, MAINTENANCE, EMERGENCY.

MCF-ENV-019 Fuel and Suppressant Handling

Claim operationAssurance level AL4Tier CP-3Evidence floor S4Supports CG-04

Objective. Ensure generator fuel and fire suppressant agents are stored, contained, transferred and disposed of safely and in compliance with permits, and that suppressant inventory reflects its environmental profile.

Requirement and evidence

The facility operator shall store fuel in tanks with secondary containment of the declared capacity, leak detection and overfill protection, shall control deliveries with a supervised procedure, shall inspect tanks and pipework at the declared interval, and shall maintain an inventory of suppressant agents with their pressure-vessel inspection status and environmental classification, recovering agents through certified contractors.

Evidence required: E1 Documentary and declarative; E3 Operational and observational. Optional: E5. Operating states: NORMAL, MAINTENANCE, EMERGENCY.

MCF-ENV-020 Hardware and Media Waste

Claim operationAssurance level AL4Tier CP-3Evidence floor S3

Objective. Ensure retired AI hardware, network equipment and media are routed to reuse, refurbishment or authorised recycling with traceable records, after data sanitisation, and in line with waste electrical equipment regulation.

Requirement and evidence

The facility operator shall route retired equipment through the decommissioning custody process (MCF-PHY-020), shall prefer reuse or refurbishment where data and security rules allow, shall transfer waste only to authorised operators with waste transfer documentation, and shall report mass by disposition route.

Evidence required: E1 Documentary and declarative; E3 Operational and observational. Optional: E5. Operating states: NORMAL.

ENV-06 Climate adaptation and resource continuity

MCF-ENV-021 Heatwave Readiness

Claim resilienceAssurance level AL5Tier CP-4Evidence floor S4Supports CG-06, CG-05

Objective. Demonstrate that heat rejection, generators, transformers and battery rooms retain the capacity required by declared outcomes during extreme heat at or beyond the design ambient, and that operations has a tested response when forecasts approach design limits.

Requirement and evidence

The facility owner shall state the design extreme ambient used for heat rejection, generator and transformer rating, shall evaluate capacity at that ambient and at the declared climate-adjusted ambient, and shall maintain a heatwave procedure triggered by forecast that includes pre-cooling, cleaning of coils, deferral of maintenance, readiness of mobile plant and workload reduction steps. The facility operator shall exercise the procedure before each hot season.

Evidence required: E1 Documentary and declarative; E3 Operational and observational; E4 Validation and test; E7 Derived and analytical. Optional: E5. Operating states: DEGRADED, EMERGENCY.

MCF-ENV-022 Drought Readiness

Claim designAssurance level AL2Tier CP-2Evidence floor S3Supports CG-03

Objective. Ensure long-term water availability risk is assessed for the site's water-dependent cooling, so that water stress does not become a strategic constraint on AI capability.

Requirement and evidence

The facility owner shall assess basin-level water stress over the declared planning horizon using recognised water-risk data and climate projections, shall evaluate the security of water entitlements, and shall define the strategy (alternative sources, technology change, reduced water design) if stress exceeds the declared threshold.

Evidence required: E1 Documentary and declarative; E7 Derived and analytical. Optional: E5. Operating states: NORMAL, DEGRADED.

MCF-ENV-023 Flood Adaptation

Claim designAssurance level AL2Tier CP-2Evidence floor S3Supports CG-09

Objective. Ensure that flood protection for critical plant remains adequate under projected climate change and that temporary flood defences are deployable in time.

Requirement and evidence

The facility owner shall evaluate flood levels under the declared climate scenario and horizon, shall confirm critical plant remains above the adjusted design level plus freeboard or is protected by permanent or demountable defences, and shall maintain a flood response plan with deployment time for demountable defences shorter than the warning lead time.

Evidence required: E1 Documentary and declarative; E7 Derived and analytical. Optional: E4, E5. Operating states: NORMAL, EMERGENCY.

MCF-ENV-024 Long-Term Resource Constraints

Claim designAssurance level AL2Tier CP-1Evidence floor S3Supports CG-01, CG-03

Objective. Ensure long-term constraints on grid capacity, water, permits and land that could limit growth or continuation of AI capability at the site are identified, owned and fed into capacity planning.

Requirement and evidence

The facility owner shall maintain a resource constraints register covering grid capacity availability and reinforcement timelines, water entitlement, environmental permits and their renewal dates, planning constraints and emission limits, over the declared horizon, and shall review it with capability owners when demand forecasts change.

Evidence required: E1 Documentary and declarative. Optional: E6, E7. Operating states: NORMAL.

Source: controls.csv, evidence-profiles.csv and gate-mappings.csv.