# supermarket systems — US AIM Act sector-specific refrigerant GWP limits and compliance dates (40 CFR 84.54) For supermarket systems, restriction type is installation; maximum gwp is 1,400; effective date is January 1, 2027; cfr paragraph is § 84.54(c)(12)(i), recorded from its source on 2026-08-06. - **Sector/subsector:** supermarket systems _(verified: appears in the quote below)_ - **Restriction type:** installation _(our reading, not quoted from the source)_ - **Maximum GWP:** 1,400 _(verified: appears in the quote below)_ - **Effective date:** January 1, 2027 _(verified: appears in the quote below)_ - **CFR paragraph:** § 84.54(c)(12)(i) _(our reading, not quoted from the source)_ ## What the source says > ( i ) Effective January 1, 2027, supermarket systems using a regulated substance, or a blend containing a regulated substance, with a global warming potential of 1,400 or greater; and ## 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/).