Massachusetts Drug Laws: Penalties, Charges & Treatment Options
Massachusetts Drug Laws: Key Takeaways
- Massachusetts classifies controlled substances into five classes (Class A through E) under MGL c.94C, rather than using the federal Schedule I-V system.
- Simple possession of a Class A substance such as heroin carries up to 2 years in a house of correction and a $2,000 fine for a first offense under MGL c.94C Section 34.
- Recreational marijuana is legal for adults 21+ with possession limits of 1 oz in public and 10 oz at home; home cultivation of up to 6 plants per person (12 per household) is permitted under MGL c.94G.
- Massachusetts has a Good Samaritan law (MGL c.94C Section 34A) that provides immunity from drug possession prosecution for individuals who seek medical assistance during a drug overdose.
- Drug trafficking carries severe mandatory minimum sentences under MGL c.94C Section 32E, including 3.5 years minimum for trafficking 18-36 grams of heroin and 3.5 years for 10+ grams of fentanyl.
- The Commonwealth operates 34 adult Recovery/Drug Courts providing judicially supervised treatment as an alternative to incarceration for non-violent drug offenders.
- Naloxone is available without a prescription at all Massachusetts retail pharmacies under a statewide standing order issued by the Department of Public Health.
Massachusetts Drug Law Overview
Massachusetts Drug Schedule Classifications
| Schedule | Description | Examples |
|---|---|---|
| Class A | Substances with the highest potential for abuse and severe physical or psychological dependence. Includes opiates and opiate derivatives not listed in other classes. | Heroin, GHB (gamma-hydroxybutyric acid), Ketamine (Special K), Morphine (non-prescription), Fentanyl analogues |
| Class B | Substances with high potential for abuse, including stimulants, certain hallucinogens, and strong opioids with accepted medical use. | Cocaine, Crack cocaine, LSD, Methamphetamine, Oxycodone (OxyContin), Amphetamine, Ecstasy (MDMA), PCP (phencyclidine), Fentanyl |
| Class C | Substances with moderate abuse potential, including certain hallucinogens, depressants, and prescription narcotics not in higher classes. | Psilocybin (mushrooms), Mescaline, Certain barbiturates, Chlordiazepoxide (Librium), Clonazepam (Klonopin), Flunitrazepam |
| Class D | Substances with lower abuse potential relative to Classes A-C, including marijuana and certain depressants. | Marijuana (over 1 oz), Phenobarbital, Diazepam (Valium), Alprazolam (Xanax), Lorazepam (Ativan) |
| Class E | Prescription drugs with the lowest abuse potential among the classified substances, typically requiring a prescription but not listed in higher classes. | Codeine-containing cough preparations, Certain prescription sedatives, Other prescription medications with abuse potential not in Classes A-D |
Massachusetts Drug Penalty Chart
| Offense | Classification | Jail / Prison | Max Fine |
|---|---|---|---|
| Simple possession of Class A (e.g., heroin) - 1st offense | Misdemeanor | Up to 2 years in house of correction and/or up to $2,000 fine | |
| Simple possession of Class B, C (e.g., cocaine, prescription drugs) | Misdemeanor | Up to 1 year in house of correction and/or up to $1,000 fine | |
| Simple possession of Class D (marijuana over 1 oz) or Class E | Misdemeanor | Up to 6 months in house of correction and/or up to $500 fine | |
| Distribution/possession with intent - Class A (1st offense) | Felony | Up to 10 years state prison or up to 2.5 years in house of correction; fine of $1,000-$10,000 | |
| Distribution/possession with intent - Class B (1st offense) | Felony | Up to 10 years state prison or up to 2.5 years in house of correction; fine of $1,000-$10,000 | |
| Distribution/possession with intent - Class C (1st offense) | Felony | Up to 5 years state prison or up to 2.5 years in house of correction; fine of $500-$5,000 | |
| Distribution/possession with intent - Class D (1st offense) | Misdemeanor | Up to 2 years in house of correction; fine of $500-$5,000 | |
| Trafficking heroin/morphine (18g to <36g) | Felony | Mandatory minimum 3.5 years, up to 30 years state prison; fine up to $25,000 | |
| Trafficking cocaine (18g to <36g) | Felony | Mandatory minimum 2 years, up to 15 years state prison; fine up to $25,000 | |
| Trafficking fentanyl (10g or more) | Felony | Mandatory minimum 3.5 years, up to 20 years state prison; fine up to $25,000 | |
| Trafficking marijuana (50 lbs to <100 lbs) | Felony | Mandatory minimum 1 year, up to 15 years state prison; fine of $1,000-$10,000 | |
| Distribution to a minor or near a school/park | Felony | Mandatory minimum 2 years (consecutive to underlying drug sentence), up to 15 years state prison |
Is Drug Possession a Felony in Massachusetts?
MGL c.94C Section 34
Under MGL c.94C Section 34, it is unlawful to knowingly or intentionally possess a controlled substance without a valid prescription or other legal authorization. Massachusetts imposes graduated penalties based on the class of substance and the offender's criminal history.
Substances: Heroin, GHB, ketamine, morphine (non-prescription)
First Offense: Up to 2 years in house of correction and/or up to $2,000 fine
Subsequent Offense: 2.5-5 years state prison and/or up to $5,000 fine
Substances: Cocaine, LSD, oxycodone, methamphetamine, psilocybin, benzodiazepines (certain)
First Offense: Up to 1 year in house of correction and/or up to $1,000 fine
Subsequent Offense: Up to 2 years in house of correction and/or up to $2,000 fine
Substances: Marijuana (over 1 oz), phenobarbital, codeine preparations, certain prescription drugs
First Offense: Up to 6 months in house of correction and/or up to $500 fine
Subsequent Offense: Up to 1 year in house of correction and/or up to $1,000 fine
Statute: MGL c.94C Section 32L
Description: Possession of 1 oz or less of marijuana by an adult 21+ is not a criminal offense. For those under 21, possession of 1 oz or less is a civil violation with a $100 fine and mandatory drug awareness program.
Massachusetts Drug DUI / DWI Laws
MGL c.90 Section 24
Operating Under the Influence (OUI)
Massachusetts uses the term OUI (Operating Under the Influence) rather than DUI or DWI. Under MGL c.90 Section 24, it is unlawful to operate a motor vehicle while under the influence of intoxicating liquor, marijuana, narcotic drugs, depressants, or stimulant substances as defined in MGL c.94C. The statute covers impairment from any substance that diminishes the ability to operate a motor vehicle safely.
0.08% (0.02% for under 21; 0.04% for commercial drivers)
Massachusetts is an implied consent state. Refusal of a breathalyzer results in automatic license suspension (180 days for first offense, escalating for subsequent offenses).
There is no per se drug concentration limit. Drug impairment is assessed through field sobriety tests, Drug Recognition Expert (DRE) evaluations, and blood toxicology. Melanie's Law (2005) significantly enhanced OUI penalties.
Massachusetts Marijuana Laws
- 2008: Question 2: Decriminalized possession of 1 oz or less, replacing criminal penalties with a $100 civil fine.
- 2012: Question 3: Legalized medical marijuana, establishing the Medical Use of Marijuana Program under MGL c.94I.
- 2016: Question 4: Legalized recreational marijuana for adults 21+ effective December 15, 2016, codified as MGL c.94G.
- 2018: First retail recreational marijuana stores opened in November 2018 under Cannabis Control Commission oversight.
- 2024: Legislature continued efforts to expand social equity provisions and address municipal opt-out restrictions.
Possession Limit: Up to 1 ounce in public; up to 10 ounces at home for adults 21+
Concentrates: Up to 5 grams of concentrate in public
Home Cultivation: Up to 6 plants per person, 12 plants per household (must be in locked area not visible/accessible from public)
Public Consumption: Prohibited; subject to civil fine of up to $100
Retail Sales: Legal and operational since November 2018 through licensed dispensaries
Medical Program: Operational since 2013; patients with qualifying conditions may obtain a Medical Use of Marijuana card
Regulatory Authority: Cannabis Control Commission (CCC)
Governing Statute: MGL c.94G (adult use); MGL c.94I (medical)
Gifting: Adults 21+ may transfer up to 1 oz (or 5g concentrate) to another adult without remuneration
Driving: Operating under the influence of marijuana is illegal under MGL c.90 Section 24; open container laws apply
Massachusetts Good Samaritan LawYes - Active
MGL c.94C Section 34A
Immunity from Prosecution for Persons Seeking Medical Assistance During Overdose
Immunity (not merely an affirmative defense)
Massachusetts General Laws c.94C Section 34A provides that a person who, in good faith, seeks medical assistance for someone experiencing a drug-related overdose — or for themselves — shall not be charged or prosecuted for possession of a controlled substance under Section 34 if the evidence for the possession charge was gained as a result of seeking medical assistance. The law also protects the person experiencing the overdose from possession charges and from violation of probation, pretrial release, or parole conditions based on evidence obtained during the overdose response.
- Immunity from prosecution for drug possession (Section 34) for the person who calls for help.
- Immunity from prosecution for drug possession for the person experiencing the overdose.
- Protection from violation of probation, pretrial release, or parole conditions based on evidence from the overdose event.
- Evidence of seeking medical assistance may be used as a mitigating factor in other criminal proceedings.
- Does NOT provide immunity for drug trafficking, distribution, or possession with intent to distribute.
- Does NOT provide immunity for offenses other than simple possession under Section 34.
- Does NOT prevent arrest at the scene; immunity applies at the charging/prosecution stage.
Massachusetts Naloxone (Narcan) Access
The Massachusetts Department of Public Health (DPH) has issued a statewide standing order allowing all retail pharmacies to dispense naloxone (Narcan) without a patient-specific prescription. This order was first issued in 2014 following a declaration of a public health emergency by the Governor. All Massachusetts retail pharmacies licensed by the Board of Pharmacy are required to maintain a continuous, sufficient supply of naloxone rescue kits.
- No prescription required: any individual may obtain naloxone at any retail pharmacy under the DPH standing order.
- All Massachusetts retail pharmacies must maintain a continuous supply of naloxone rescue kits.
- MassHealth covers the cost of standing-order naloxone for members; many private insurers also cover it.
- Insurance is not required to obtain naloxone through the standing order.
- Community organizations distribute free naloxone through DPH-funded programs.
- Good faith administration of naloxone to a person appearing to experience an opioid overdose is protected from civil liability.
- As of December 2024, all health plans must cover opioid reversal drugs without cost-sharing or prior authorization.
Massachusetts Department of Public Health (DPH)
https://www.mass.gov/info-details/getting-naloxone-from-a-pharmacy-or-store
Massachusetts Drug Courts & Diversion Programs
Recovery Courts (Drug Courts)
Massachusetts operates 34 adult Recovery Courts (formerly Drug Courts) that provide judicially supervised treatment as an alternative to incarceration for people charged with non-violent drug-related offenses who are struggling with substance use disorder. These courts use a multi-disciplinary team approach including judges, probation officers, defense attorneys, prosecutors, and clinicians.
- Intensive supervised probation with mandatory substance abuse treatment
- Random and frequent drug testing
- Regular court appearances before a designated judge
- Access to medication-assisted treatment (MAT) through community-based providers
- Graduated sanctions for non-compliance and incentives for progress
- Coordination with housing, employment, and educational services
Research shows up to 58% increases in employment, education, family functioning, and financial stability, along with significant reductions in recidivism.
Generally available to non-violent offenders with substance use disorders. Eligibility criteria vary by jurisdiction. Violent offenders and those with certain prior convictions may be excluded.
Massachusetts Center of Excellence for Specialty Courts (MaCOE) and the Specialty Courts Department of the Trial Court
https://www.mass.gov/info-details/recovery-courtsdrug-courts
Does Massachusetts Have Mandatory Minimums for Drugs?
Massachusetts imposes mandatory minimum sentences primarily for drug trafficking offenses under MGL c.94C Section 32E. These mandatory minimums are triggered by the weight of the substance and apply regardless of the offender's criminal history. Massachusetts has been the subject of ongoing legislative debates about reforming or reducing mandatory minimums for drug offenses.
- Trafficking heroin/morphine (18g to <36g) — Statute: MGL c.94C Section 32E(c)
Mandatory Minimum: 3.5 years state prison - Trafficking heroin/morphine (36g to <100g) — Statute: MGL c.94C Section 32E(c)
Mandatory Minimum: 5 years state prison - Trafficking heroin/morphine (100g to <200g) — Statute: MGL c.94C Section 32E(c)
Mandatory Minimum: 10 years state prison - Trafficking cocaine (18g to <36g) — Statute: MGL c.94C Section 32E(b)
Mandatory Minimum: 2 years state prison - Trafficking cocaine (36g to <100g) — Statute: MGL c.94C Section 32E(b)
Mandatory Minimum: 3.5 years state prison - Trafficking fentanyl (10g or more) — Statute: MGL c.94C Section 32E(c 1/2)
Mandatory Minimum: 3.5 years state prison - Trafficking marijuana (50 to <100 lbs) — Statute: MGL c.94C Section 32E(a)
Mandatory Minimum: 1 year - Distribution within 300 feet of a school — Statute: MGL c.94C Section 32J
Mandatory Minimum: 2 years (consecutive) - Second offense distribution of Class A — Statute: MGL c.94C Section 32
Mandatory Minimum: 3.5 years state prison
Treatment Alternatives to Incarceration
Statute: MGL c.123 Section 35
Title: Involuntary Commitment for Substance Use Disorder
Description: Massachusetts General Laws c.123 Section 35 allows family members, police officers, physicians, or court officials to petition for the involuntary commitment of a person who has a substance use disorder and poses a likelihood of serious harm. Commitment is for up to 90 days to a treatment facility approved by the Department of Public Health.
Description: District Attorneys in Massachusetts may offer pretrial diversion programs for first-time, non-violent drug offenders. Participants who complete treatment and comply with program conditions may have their charges dismissed.
See drug_courts section -- Recovery Courts provide judicially supervised treatment as an alternative to incarceration.
Description: Massachusetts has expanded access to medication-assisted treatment (MAT) including methadone, buprenorphine (Suboxone), and naltrexone (Vivitrol). The Bureau of Substance Addiction Services (BSAS) under DPH funds and oversees a network of treatment providers. Emergency departments are increasingly initiating buprenorphine treatment for patients presenting with opioid use disorder.
Statute: MGL c.111E
Description: MGL Chapter 111E governs the treatment and rehabilitation of drug-dependent persons in Massachusetts. It establishes the framework for voluntary and court-ordered treatment programs, including outpatient counseling, residential treatment, and transitional support services.
Facing Drug Charges in Massachusetts?
Many Massachusetts courts offer treatment-based alternatives to incarceration. Drug court programs, diversion programs, and court-ordered rehab can help you get treatment instead of jail time.
New Massachusetts Drug Laws (2025-2026)
2024: December 2024: Legislature passed comprehensive substance use disorder legislation requiring all health plans to cover opioid reversal drugs (naloxone/Narcan) without cost-sharing or prior authorization.
2024: Hospitals and substance use treatment facilities now required to educate patients on opioid reversal drugs and prescribe or dispense at least two doses to at-risk patients upon discharge.
2024: New law prohibits life insurance companies from limiting or refusing coverage solely because an individual obtained an opioid-reversal drug.
2024: Senate passed legislation enabling cities and towns to establish needle exchange programs, drug screening services, and overdose prevention facilities.
2024: Recovery coach licensing framework established to professionalize peer recovery support services across the Commonwealth.
2025: Legislation expanded liability protections for individuals and police officers who distribute fentanyl test strips or other harm reduction supplies in good faith.
2025: Cannabis possession limit increase from 1 oz to 2 oz under consideration (H. 4206 passed both chambers; conference committee appointed January 2026 to reconcile versions).
Frequently Asked Questions: Massachusetts Drug Laws
Sources & Citations
- Massachusetts General Laws Chapter 94C - Controlled Substances Act
- MGL c.94C Section 34 - Penalties for Unlawful Possession
- MGL c.94C Section 32E - Trafficking Penalties
- MGL c.94C Section 34A - Good Samaritan Overdose Law
- MGL c.90 Section 24 - Operating Under the Influence (OUI)
- Mass.gov - Massachusetts Law About Recreational Marijuana
- Cannabis Control Commission - Know the Laws
- Mass.gov - Recovery Courts/Drug Courts
- Mass.gov - Getting Naloxone from a Pharmacy or Store
- Mass.gov - Drunk or Drugged Driving Laws
- NORML - Massachusetts Laws and Penalties
- Massachusetts Center of Excellence for Specialty Courts
- Mass.gov - Section 35: Involuntary Commitment Process and Criteria
Legal Disclaimer
The information on this page is provided for general educational purposes only and does not constitute legal advice. Laws change frequently, and their application depends on specific facts and circumstances. This content should not be relied upon as a substitute for consultation with a qualified attorney licensed in your state. United Rehabs is not a law firm and does not provide legal services. If you need legal advice, contact a licensed attorney or your state bar association.