Net-zeroCloseDictionary termNet zeroA state in which anthropogenic greenhouse-gas emissions are balanced by anthropogenic removals over a specified period and within a defined boundary.Read the full definition → building” / “net-zero home

Whole-life carbonCloseDictionary termWhole Life CarbonThe total greenhouse gas emissions associated with a building across its entire life cycle, combining embodied and operational carbon.Read the full definition → basis stated; operational + embodied treatment disclosed; offsets separately reported; align with national ZEB transposition.

Measured operational data; embodied-carbonCloseDictionary termEmbodied carbonEmbodied carbon is the greenhouse gas emissions associated with materials, production, transport, construction or other lifecycle stages before or beyond operational use.Read the full definition → boundary defined.

Energy data + offset quality disclosure (AB 1305-style for CA marketing).

Product-level claims need an adequate and proper testCloseDictionary termAdequate and proper testProduct-level environmental benefit claim requires testing **before** the claim; test must fit the claim's representationRead the full definition →; business/activity-level claims need substantiationCloseDictionary termSubstantiationThe documented body of relevant, reliable and current evidence that supports the exact wording, scope, comparison and overall impression of a claim before and while it is communicated.Read the full definition → (the internationally recognised methodology requirement was repealed); reverse onus remains; private Tribunal access for business-level claims was removed.

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CertificationCloseDictionary termCertificationA third-party attestation that a product, process, service, system or person fulfils specified requirements within a defined scope.Read the full definition → rating or measured performance required.