# any product that uses a regulated substance as listed in paragraph (a) — US AIM Act sector-specific refrigerant GWP limits and compliance dates (40 CFR 84.54) For any product that uses a regulated substance as listed in paragraph (a), restriction type is sale/distribution; effective date is three years after the dates listed for each subsector; cfr paragraph is § 84.54(b), recorded from its source on 2026-08-06. - **Sector/subsector:** any product that uses a regulated substance as listed in paragraph (a) _(verified: appears in the quote below)_ - **Restriction type:** sale/distribution _(our reading, not quoted from the source)_ - **Effective date:** three years after the dates listed for each subsector _(verified: appears in the quote below)_ - **CFR paragraph:** § 84.54(b) _(our reading, not quoted from the source)_ ## What the source says > ( b ) Effective three years after the dates listed for each subsector in paragraph (a) of this section, no person may sell, distribute, offer for sale or distribution, make available for sale or distribution, purchase or receive for sale or distribution, or attempt to purchase or receive for sale or distribution, or export any product that uses a regulated substance as listed in paragraph (a). ## 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/).