Public Documents / Regulations

Regulation Materials

View and download regulatory documents related to Medical and Adult Use Marijuana.

Current Regulations | Emergency Regulations | Archived Regulations

Current Regulations

Category	Title	Published Date
Current Regulations, Emergency Regulations	935 CMR 500.000: Adult Use of Marijuana (Effective 06/18/26) (PDF)	6/18/2026 2:11 pm
Current Regulations, Emergency Regulations	935 CMR 501.000: Medical Use of Marijuana (Effective 06/18/26) (PDF)	6/18/2026 2:08 pm

Petition for Changes to Commission Regulations

Learn more about how to petition for changes to the Commission’s adult- and medical-use marijuana regulations.

Petitions

Emergency Regulations

Category	Title	Published Date
Current Regulations, Emergency Regulations	935 CMR 500.000: Adult Use of Marijuana (Effective 06/18/26) (PDF)	6/18/2026 2:11 pm
Emergency Regulations	935 CMR 500.000: Adult Use of Marijuana (Effective 06/18/26) (PDF) – Redlined	6/18/2026 2:10 pm
Current Regulations, Emergency Regulations	935 CMR 501.000: Medical Use of Marijuana (Effective 06/18/26) (PDF)	6/18/2026 2:08 pm
Emergency Regulations	935 CMR 501.000: Medical Use of Marijuana (Effective 06/18/26) (PDF) – Redlined	6/18/2026 2:07 pm

Archived Regulations

Category	Title	Published Date
Archived Regulations	935 CMR 501.000: Medical Use of Marijuana (Effective 03/27/26) (PDF)	5/1/2026 4:20 am
Archived Regulations	935 CMR 500.000: Adult Use of Marijuana (Effective 03/27/26) (PDF)	5/1/2026 4:20 am
Archived Regulations	DRAFT – Secret Shopper Program Regulations for 935 CMR 501.000: Medical Use of Marijuana (01/15/26) (Word) – Redlined	1/29/2026 1:20 pm
Archived Regulations	DRAFT – Secret Shopper Program Regulations for 935 CMR 501.000: Medical Use of Marijuana (01/15/26) (Word) – Clean	1/29/2026 1:19 pm
Archived Regulations	DRAFT – Delivery Exclusivity & Secret Shopper Program Regulations for 935 CMR 500.000: Adult Use of Marijuana (01/15/26) (Word) – Redlined	1/29/2026 1:19 pm
Archived Regulations	DRAFT – Delivery Exclusivity & Secret Shopper Program Regulations for 935 CMR 500.000: Adult Use of Marijuana (01/15/26) (Word) – Clean	1/29/2026 1:17 pm
Archived Regulations	935 CMR 501.000: Medical Use of Marijuana (Effective 01/02/26) (PDF)	1/12/2026 11:39 am
Archived Regulations	935 CMR 500.000: Adult Use of Marijuana (Effective 01/02/26) (PDF)	1/12/2026 11:38 am
Archived Regulations	DRAFT – Social Consumption Regulations for 935 CMR 500.000: Adult Use of Marijuana (8/1/25) (Word) – Clean	8/1/2025 3:52 pm
Archived Regulations	DRAFT – Social Consumption Regulations for 935 CMR 500.000: Adult Use of Marijuana (8/1/25) (Word) – Redlined	8/1/2025 3:52 pm
Archived Regulations	DRAFT – Social Consumption Regulations for 935 CMR 501.000: Medical Use of Marijuana (8/1/25) (Word) – Clean	8/1/2025 3:51 pm
Archived Regulations	DRAFT – Social Consumption Regulations for 935 CMR 501.000: Medical Use of Marijuana (8/1/25) (Word) – Redlined	8/1/2025 3:50 pm
Archived Regulations	DRAFT – Social Consumption Regulations for 935 CMR 500.000: Adult Use of Marijuana (12/17/24) (Word) – Redlined	12/17/2024 3:32 pm
Archived Regulations	935 CMR 501.000: Medical Use of Marijuana (Effective 11/22/24) (PDF)	11/27/2024 9:34 am
Archived Regulations	935 CMR 500.000: Adult Use of Marijuana (Effective 11/22/24) (PDF)	11/27/2024 9:33 am
Archived Regulations	DRAFT – 935 CMR 500.000: Adult Use of Marijuana (9/12/2024) (Word) – Clean	9/12/2024 10:57 am
Archived Regulations	DRAFT – 935 CMR 500.000: Adult Use of Marijuana (9/12/2024) (PDF) – Clean	9/12/2024 10:56 am
Archived Regulations	DRAFT – 935 CMR 500.000: Adult Use of Marijuana (9/12/2024) (Word) – Redlined	9/12/2024 10:55 am
Archived Regulations	DRAFT – 935 CMR 500.000: Adult Use of Marijuana (9/12/2024) (PDF) – Redlined	9/12/2024 10:55 am
Archived Regulations	DRAFT – 935 CMR 501.000: Medical Use of Marijuana (9/12/2024) (Word) – Clean	9/12/2024 10:52 am
Archived Regulations	DRAFT – 935 CMR 501.000: Medical Use of Marijuana (9/12/2024) (PDF) – Clean	9/12/2024 10:52 am
Archived Regulations	DRAFT – 935 CMR 501.000: Medical Use of Marijuana (9/12/2024) (Word) – Redlined	9/12/2024 10:49 am
Archived Regulations	DRAFT – 935 CMR 501.000: Medical Use of Marijuana (9/12/2024) (PDF) – Redlined	9/12/2024 10:49 am
Archived Regulations	935 CMR 500.000: Adult Use of Marijuana (Effective 10/27/23) (PDF)	10/31/2023 3:50 pm
Archived Regulations	935 CMR 501.000: Medical Use of Marijuana (Effective 10/27/23) (PDF)	10/31/2023 3:49 pm
Archived Regulations	935 CMR 500.000: Adult Use of Marijuana (Effective 10/27/23) (Word) – Redlined	10/31/2023 3:47 pm
Archived Regulations	935 CMR 501.000: Medical Use of Marijuana (Effective 10/27/23) (Word) – Redlined	10/31/2023 3:45 pm
Archived Regulations	FILED – 935 CMR 501.000- Medical Use of Marijuana (PDF)	8/16/2023 1:31 pm
Archived Regulations	FILED – 935 CMR 501.000- Medical Use of Marijuana (Word)	8/16/2023 1:30 pm
Archived Regulations	FILED – 935 CMR 500.000- Adult Use of Marijuana (PDF)	8/16/2023 1:29 pm
Archived Regulations	FILED – 935 CMR 500.000- Adult Use of Marijuana (Word)	8/16/2023 1:28 pm
Archived Regulations	FILED – 935 CMR 501.000- Medical Use of Marijuana (PDF) – Redlined	8/16/2023 1:27 pm
Archived Regulations	FILED – 935 CMR 501.000- Medical Use of Marijuana (Word) – Redlined	8/16/2023 1:27 pm
Archived Regulations	FILED – 935 CMR 500.000- Adult Use of Marijuana (PDF) – Redlined	8/16/2023 1:26 pm
Archived Regulations	FILED – 935 CMR 500.000- Adult Use of Marijuana (Word) – Redlined	8/16/2023 1:25 pm
Archived Regulations	935 CMR 500.000: Uso de marihuana en adultos (fecha de entrada en vigor: 1/8/21, corrección: 4/15/22) (Spanish Translation)	5/5/2022 3:06 pm
Archived Regulations	935 CMR 500.000: Uso adulto de maconha (em vigor em 08/01/2021, retificado em 15/04/2022) (Portuguese Translation)	5/5/2022 2:27 pm
Archived Regulations	935 CMR 501.000: Medical Use of Marijuana (Effective 1/8/21, Corrected 4/16/21)	4/25/2022 2:22 pm
Archived Regulations	935 CMR 500.000: Adult Use of Marijuana (Promulgated April 16, 2021)	4/25/2022 2:20 pm
Archived Regulations	935 CMR 500.000: Adult Use of Marijuana (Effective 1/8/21, Corrected 4/15/22)	4/25/2022 2:18 pm
Archived Regulations	935 CMR 501.000: Uso médico de maconha (em vigor em 08/01/2021, retificado em 16/04/2021) (Portuguese Translation)	10/5/2021 2:33 pm
Archived Regulations	935 CMR 501.000: Uso medicinal de marihuana (fecha de entrada en vigor: 1/8/21, corrección: 4/16/21) (Spanish Translation)	8/9/2021 3:05 pm
Archived Regulations	935 CMR 501.000: Medical Use of Marijuana (Promulgated January 8, 2021)	5/5/2021 7:11 pm
Archived Regulations	935 CMR 500.000: Adult Use of Marijuana (Promulgated January 8, 2021)	5/5/2021 7:10 pm
Archived Regulations	DRAFT Delivery Regulations for 935 CMR 500.000 – Adult Use of Marijuana (9/28/20) (PDF)	1/15/2021 5:35 pm
Archived Regulations	FILED – 935 CMR 501.000: Medical Use of Marijuana (PDF)	12/28/2020 4:47 pm
Archived Regulations	FILED – 935 CMR 501.000: Medical Use of Marijuana (Word)	12/28/2020 4:46 pm
Archived Regulations	FILED – 935 CMR 501.000: Medical Use of Marijuana (PDF) – Redlined	12/28/2020 4:45 pm
Archived Regulations	FILED – 935 CMR 501.000: Medical Use of Marijuana (Word) – Redlined	12/28/2020 4:44 pm
Archived Regulations	FILED – 935 CMR 500.000: Adult Use of Marijuana (PDF)	12/28/2020 4:42 pm
Archived Regulations	FILED – 935 CMR 500.000: Adult Use of Marijuana (Word)	12/28/2020 4:41 pm
Archived Regulations	FILED – 935 CMR 500.000: Adult Use of Marijuana (PDF) – Redlined	12/28/2020 4:39 pm
Archived Regulations	FILED – 935 CMR 500.000: Adult Use of Marijuana (Word) – Redlined	12/28/2020 4:39 pm
Archived Regulations	DRAFT Delivery Regulations for 935 CMR 501.000 – Medical Use of Marijuana (9/28/20) (PDF)	9/28/2020 6:15 pm
Archived Regulations	DRAFT – 935 CMR 500.000: Adult Use of Marijuana (7/24/20) (Word)	7/24/2020 5:29 pm
Archived Regulations	DRAFT – 935 CMR 500.000: Adult Use of Marijuana (7/24/20) (Word) – Redlined	7/24/2020 5:29 pm
Archived Regulations	DRAFT – 935 CMR 502.000: Colocated adult use and Medical-Use Marijuana Operations (7/24/20) (Word)	7/24/2020 5:29 pm
Archived Regulations	DRAFT – 935 CMR 502.000: Colocated adult use and Medical-Use Marijuana Operations (7/24/20) (Word) – Redlined	7/24/2020 5:28 pm
Archived Regulations	DRAFT – 935 CMR 502.000: Colocated adult use and Medical-Use Marijuana Operations (7/24/20) (PDF) – Redlined	7/24/2020 5:28 pm
Archived Regulations	DRAFT – 935 CMR 501.000: Medical Use of Marijuana (7/24/20) (Word)	7/24/2020 5:28 pm
Archived Regulations	DRAFT – 935 CMR 501.000: Medical Use of Marijuana (7/24/20) (Word) – Redlined	7/24/2020 5:27 pm
Archived Regulations	DRAFT – 935 CMR 500.000: Adult Use of Marijuana (7/24/20) (PDF) – Redlined	7/24/2020 5:27 pm
Archived Regulations	DRAFT – 935 CMR 501.000: Medical Use of Marijuana (7/24/20) (PDF) – Redlined	7/24/2020 5:26 pm
Archived Regulations	DRAFT – 935 CMR 502.000: Colocated adult use and Medical-Use Marijuana Operations (7/24/20) (PDF)	7/24/2020 5:25 pm
Archived Regulations	DRAFT – 935 CMR 500.000: Adult Use of Marijuana (7/24/20) (PDF)	7/24/2020 5:24 pm
Archived Regulations	DRAFT – 935 CMR 501.000: Medical Use of Marijuana (7/24/20) (PDF)	7/24/2020 5:24 pm
Archived Regulations	935 CMR 501.000: Medical Use of Marijuana (November 1, 2019)	11/1/2019 2:47 pm
Archived Regulations	935 CMR 500.000: Adult Use of Marijuana (November 1, 2019)	11/1/2019 2:46 pm
Archived Regulations	FILED – 935 CMR 500.000: Adult Use of Marijuana (10/18/19) (Word)	10/18/2019 4:49 pm
Archived Regulations	FILED – 935 CMR 500.000: Adult Use of Marijuana (10/18/19) (PDF)	10/18/2019 4:49 pm
Archived Regulations	FILED – 935 CMR 501.000: Medical Use of Marijuana (10/18/19) (PDF)	10/18/2019 2:57 pm
Archived Regulations	FILED – 935 CMR 501.000: Medical Use of Marijuana (10/18/19) (Word)	10/18/2019 2:57 pm
Archived Regulations	Comparison \| DRAFT – 935 CMR 500.000: Adult Use of Marijuana	7/5/2019 3:54 pm
Archived Regulations	Comparison \| DRAFT – 935 CMR 501.000: Medical Use of Marijuana	7/5/2019 3:54 pm
Archived Regulations	DRAFT – 935 CMR 501.000: Medical Use of Marijuana (7/2/19) (Word)	7/2/2019 4:18 pm
Archived Regulations	DRAFT – 935 CMR 501.000: Medical Use of Marijuana (7/2/19) (PDF)	7/2/2019 4:18 pm
Archived Regulations	DRAFT – 935 CMR 500.000: Adult Use of Marijuana (7/2/19) (Word)	7/2/2019 4:18 pm
Archived Regulations	DRAFT – 935 CMR 500.000: Adult Use of Marijuana (7/2/19) (PDF)	7/2/2019 4:18 pm
Archived Regulations	935 CMR 502.00: Colocated adult use and Medical-Use Marijuana Operations	1/7/2019 10:59 am
Archived Regulations	935 CMR 502.00: Colocated Adult-Use and Medical-Use Marijuana Operations	1/7/2019 10:59 am
Archived Regulations	935 CMR 501.00: Medical Use of Marijuana (December 23, 2018)	1/7/2019 10:57 am
Archived Regulations	935 CMR 500.00: Adult Use of Marijuana	1/7/2019 10:55 am
Archived Regulations	935 CMR 501.000: Medical Use of Marijuana (December 14, 2018)	12/12/2018 12:00 pm
Archived Regulations	935 CMR 500	11/16/2018 11:04 am
Archived Regulations	DRAFT – 935 CMR 502.000: Colocated adult use and Medical-Use Marijuana Operations	9/7/2018 5:30 pm
Archived Regulations	DRAFT – 935 CMR 501.000: Medical Use of Marijuana	9/7/2018 5:28 pm
Archived Regulations	935 CMR 500: Adult use of marijuana, Published in the Massachusetts Register	3/28/2018 4:15 pm
Archived Regulations, Meeting Materials	Renumbered by the Secretary of State: Draft Regulations for the Implementation of the Adult Use of Marijuana Industry in Massachusetts as Approved 12/21/2017	2/23/2018 5:42 pm
Archived Regulations, Meeting Materials	Draft Regulations for the Implementation of the Adult Use of Marijuana Industry in Massachusetts as Approved 12/21/2017	12/21/2017 3:26 pm

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Public Documents / Regulations

Regulation Materials

View and download regulatory documents related to Medical and Adult Use Marijuana.

Current Regulations | Emergency Regulations | Archived Regulations

Current Regulations

Petition for Changes to Commission Regulations

Emergency Regulations

Archived Regulations

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Subscribe to OurNotice List

Attend a PublicMeeting

Subscribe to OurNotice List

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