# Maryland — HFC refrigerant GWP regulations by US state

For Maryland, equipment category is Supermarket; effective date is January 1, 2021; regulatory status is signed into law; regulation citation is COMAR 26.11.33, recorded from its source on 2026-08-05.

- **State:** Maryland
- **Equipment category:** Supermarket
- **Effective date:** January 1, 2021
- **Regulatory status:** signed into law _(our reading, not quoted from the source)_
- **Regulation citation:** COMAR 26.11.33

## What the source says

> In alignment with the federal EPA SNAP <https://www.epa.gov/sites/default/files/2015-08/documents/snap_regulatory_factsheet_july20_2015.pdf> Rules 20 and <https://www.epa.gov/sites/default/files/2016-12/documents/snap_action_scr2_factsheet.pdf> 21 , Maryland enacted <http://www.dsd.state.md.us/COMAR/SubtitleSearch.aspx?search=26.11.33.%2A> COMAR 26.11.33 , prohibiting certain HFCs in specific stationary refrigeration and air-conditioning end-uses. Supermarket Effective Date: January 1, 2021

## Source

- https://nasrc.org/hfc-policy-tracker/

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [HFC refrigerant GWP regulations by US state](https://referencesource.org/hfc-refrigerant-regulations-by-state/).