# industrial process refrigeration systems with a January 1, 2026, compliance date, retail food—supermarket, cold storage warehouse, and ice rink subsectors — US AIM Act sector-specific refrigerant GWP limits and compliance dates (40 CFR 84.54) For industrial process refrigeration systems with a January 1, 2026, compliance date, retail food, sector/subsector is industrial process refrigeration systems with a January 1, 2026, compliance date, retail food—supermarket, cold storage warehouse, and ice rink subsectors; restriction type is installation; effective date is extended one year beyond the specified compliance date; conditions is when an approved building permit issued prior to October 5, 2023, specifies the use of a restricted regulated substance; cfr paragraph is § 84.54(d), recorded from its source on 2026-08-06. - **Sector/subsector:** industrial process refrigeration systems with a January 1, 2026, compliance date, retail food—supermarket, cold storage warehouse, and ice rink subsectors _(verified: appears in the quote below)_ - **Restriction type:** installation _(our reading, not quoted from the source)_ - **Effective date:** extended one year beyond the specified compliance date _(verified: appears in the quote below)_ - **Conditions:** when an approved building permit issued prior to October 5, 2023, specifies the use of a restricted regulated substance _(verified: appears in the quote below)_ - **CFR paragraph:** § 84.54(d) _(our reading, not quoted from the source)_ ## What the source says > ( d ) The compliance date for the installation of a system in paragraph (c) of this section for the industrial process refrigeration systems with a January 1, 2026, compliance date, retail food—supermarket, cold storage warehouse, and ice rink subsectors is extended one year beyond the specified compliance date when an approved building permit issued prior to October 5, 2023, specifies the use of a restricted regulated substance, or blend containing a regulated substance, in a system detailed in that permit. ## Source - https://www.ecfr.gov/current/title-40/chapter-I/subchapter-C/part-84 Last verified: 2026-08-06. Review by: 2027-02-02. Part of [US AIM Act sector-specific refrigerant GWP limits and compliance dates (40 CFR 84.54)](https://referencesource.org/aim-act-refrigerant-gwp-sector-limits/).