# cold storage warehouse systems — US AIM Act sector-specific refrigerant GWP limits and compliance dates (40 CFR 84.54)

For cold storage warehouse systems, restriction type is installation; maximum gwp is 300; effective date is January 1, 2032; conditions is Systems with a refrigerant charge capacity less than 200 pounds; cfr paragraph is § 84.54(c)(9)(ii)(B), recorded from its source on 2026-08-06.

- **Sector/subsector:** cold storage warehouse systems _(verified: appears in the quote below)_
- **Restriction type:** installation _(our reading, not quoted from the source)_
- **Maximum GWP:** 300 _(verified: appears in the quote below)_
- **Effective date:** January 1, 2032 _(verified: appears in the quote below)_
- **Conditions:** Systems with a refrigerant charge capacity less than 200 pounds _(verified: appears in the quote below)_
- **CFR paragraph:** § 84.54(c)(9)(ii)(B) _(our reading, not quoted from the source)_

## What the source says

> ( ii ) Effective January 1, 2032, cold storage warehouse systems using a regulated substance, or a blend containing a regulated substance, as follows: ( A ) Systems with a refrigerant charge capacity of 200 pounds or greater, that are not the high temperature side of a cascade system, using a regulated substance, or a blend containing a regulated substance, with a global warming potential of 150 or greater; ( B ) Systems with a refrigerant charge capacity less than 200 pounds using a regulated substance, or a blend containing a regulated substance, with a global warming potential of 300 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/).