Massachusetts Drug and Alcohol Inpatient Licensing: BSAS Requirements

Author: A. Ant, CADC-II, Licensing & Accreditation Expert

Apply now: General Suitability Notice of Intent | Questions: bsas-noi-suitability@mass.gov

Massachusetts Drug and Alcohol Inpatient Licensing: BSAS Residential and Diversionary Services

Which service type applies determines which set of rules actually governs a program here. Massachusetts doesn’t use “inpatient” as a single licensing category the way the term gets used casually in the field. Under 105 CMR 164.000, the Bureau of Substance Addiction Services splits round-the-clock SUD care into two distinct service types, and which one applies to you changes what the regulation actually requires.

24-Hour Diversionary Services: the medical side

Acute Treatment Services and Clinical Stabilization Services (ATS and CSS in BSAS shorthand) fall under what the regulation calls 24-Hour Diversionary Services. ATS is the part the rule calls 24-hour diversionary withdrawal management (ASAM Levels 3.7 and 4.0 under 164.132), with nursing and medical supervision around the clock while withdrawal is managed. CSS is ASAM Level 3.5, and 164.151 says it runs in a nonmedical setting with 24-hour supervision, observation and support, though 164.153 still has it name a physician as Medical Director. If your program is doing medical detox work, this is almost certainly your category, and it comes with a Medical Director, since 105 CMR 164.005 puts all of a program’s medical services under that physician, who must be licensed in Massachusetts and trained in addiction medicine.

Residential rehabilitation: the non-medical side

Residential rehabilitation services are a separate category: organized substance use disorder treatment and education services delivered through a planned program of care in a 24-hour residential setting, without the same medical withdrawal-management focus as ATS/CSS. If you’re not managing acute withdrawal but you are providing structured, round-the-clock programming, this is likely where you land instead.

License or approval: which one you’re after

105 CMR 164 hands out two different things. A freestanding program, which covers most residential rehabilitation programs and freestanding ATS or CSS units, applies to BSAS for a license in its own right. A SUD program run inside a facility that already holds a license goes through Part Three of the regulation (164.500 onward) instead, and what it gets depends on the licensing department. Inside a hospital or clinic licensed by DPH’s Bureau of Health Care Safety and Quality, it’s a BSAS “Approval.” Inside a Department of Mental Health licensed facility, 105 CMR 164.005 calls it a “Substance Use Disorder Treatment License for Department of Mental Health Licensed Facility,” a license of its own rather than an approval. Which side of that line you’re on decides which Notice of Intent you file.

Correction (October 2026): an earlier version of this guide said every BSAS program needs an underlying DPH or DMH hospital or clinic license. Only SUD programs operated inside those licensed facilities do. Freestanding programs are licensed by BSAS directly.

Accreditation can count as evidence of compliance

105 CMR 164.005 defines “Deemed Status” as the Department’s acceptance of accreditation as evidence of compliance with one or more of 164.000’s requirements, and it defines an accrediting body as one the Commissioner has approved to accredit substance use disorder treatment programs. What the regulation doesn’t do is publish a list of approved bodies or say which requirements accreditation covers, so ask BSAS whether your CARF or Joint Commission accreditation is recognized, and for what, before counting on it. It doesn’t skip the Notice of Intent process below. Separately, 164.031 says a provider that is subject to accreditation has to keep it current and send BSAS the documentation.

There’s also a credential built around ASAM levels specifically, separate from anything in 105 CMR 164. CARF grants ASAM Level of Care Certification to adult residential programs at Levels 3.1, 3.5 and 3.7 only. Residential rehabilitation is the clearest fit, and a 24-Hour Diversionary program wondering whether it qualifies should put that question to CARF directly. Don’t count on it appearing on a BSAS license. Anyone who wants proof can find certified programs with CARF’s provider search.

The application itself

You start with a Notice of Intent to BSAS, not a full application. BSAS reviews the NOI for suitability, and NOIs are handled in the order received, and timelines vary depending on what’s submitted. Once you clear that stage, you’re assigned a Licensing Inspector who stays your point of contact through the full SUD Program application in BSAS eLicensing, the on-site inspection, and every renewal after that.

Ketamine in a BSAS Residential or Diversionary Program

Read from 105 CMR 164, DPH’s January 2024 clinic licensing memo and the Board of Registration in Nursing’s sedation guidance. None of these names psychiatric ketamine, so the conclusions here are an interpretation for BSAS and DPH to confirm.

The answer depends on which of the two service types a program runs. 24-Hour Diversionary Services (ATS and CSS) already operate under a Medical Director with round-the-clock medical management, so a ketamine protocol has a natural owner there. Residential rehabilitation is built without that medical layer, and adding an infusion to it means adding a physician-level service the program wasn’t designed around. If the program runs inside a DPH-licensed hospital or clinic under a BSAS Approval, or inside a DMH-licensed facility under its DMH-facility SUD license, the facility license underneath matters as well, so the question isn’t only whether BSAS will accept ketamine in the program but whether that license covers the medical service being added. A freestanding program licensed by BSAS alone takes the question to BSAS. Either way, get the answer before the first dose.

The Board of Registration in Nursing addresses sedating medications in Advisory Ruling 9101 on medications for sedation and analgesia, and any program planning RN-run infusions should read it against its own protocol. Massachusetts nurse practitioners can prescribe independently once they’ve completed two years of supervised practice, so a newer psychiatric NP still needs a supervising physician for the series.

Residents Who Fit

The best fit is a resident in residential rehabilitation, past acute withdrawal, whose depression or PTSD hasn’t moved with standard medications. A patient in ATS is usually the wrong one, because mood readings taken during withdrawal aren’t reliable. Any history of ketamine or other dissociative use argues for a different approach. And because every BSAS applicant attests under 105 CMR 164.009 that its program will provide all FDA-approved medications for addiction treatment, directly or through a qualified service organization agreement, staff should be clear with residents that ketamine isn’t one of them.

Continuing at a Clinic After Discharge

Residents who respond during their stay can continue at an outpatient ketamine clinic. Massachusetts allows physicians to practice through a professional corporation or professional LLC, and DPH’s January 2024 memo draws the line that matters most: an entity offering ambulatory medical services needs a DPH clinic license under 105 CMR 140 unless it’s wholly owned and controlled by its practitioners and doesn’t call itself a “clinic,” “institute” or “dispensary.” A lay-owned clinic can still operate with that license. More is in the ketamine section of Massachusetts Drug and Alcohol Outpatient Licensing: BSAS Requirements. Referral arrangements between a residential program and a clinic with shared ownership need counsel’s review because of the federal Eliminating Kickbacks in Recovery Act (18 U.S.C. § 220).

Staffing a residential or diversionary program

Massachusetts substance abuse counselors earn a median of $59,030 a year, with the top 10% above $91,260. 24-Hour Diversionary Services and Outpatient Withdrawal Management both deliver medical services that run under a Medical Director on top of counseling staff, which adds real cost most outpatient-only budgets don’t carry. A clinical director supervising LADC Assistants or LADC IIs working toward their next tier, at reduced wages in exchange for the supervised hours their licensure requires, can cut clinical staffing costs by 40 to 60% compared to a roster of LADC Is. On the nursing side, most 24-Hour Diversionary programs can run with one RN overseeing several LPNs rather than an all-RN team.

How to Submit Your BSAS Notice of Intent

Start with the General Suitability Notice of Intent (or the BHCSQ version if you already hold a Department of Public Health facility license), following the process outlined on BSAS’s Information for Initial SUD Program Licensure page. For questions about the suitability and licensing process, BSAS’s contact is bsas-noi-suitability@mass.gov.

Frequently Asked Questions

How do I know if my program is 24-Hour Diversionary Services or residential rehabilitation?

If you’re medically managing withdrawal symptoms, you’re almost certainly ATS, the withdrawal management side of 24-Hour Diversionary Services. CSS sits under the same heading but in a nonmedical setting, and both carry a Medical Director requirement. If you’re providing structured, round-the-clock programming without that acute medical focus, residential rehabilitation is the more likely category.

Do I need a hospital or clinic license before BSAS will license my program?

Not for a freestanding program. BSAS licenses freestanding SUD programs directly under 105 CMR 164. Part Three (164.500 onward) is for SUD programs operated inside a facility DPH or DMH already licenses, and there the facility license has to be in place. A program inside a DPH-licensed hospital or clinic gets a BSAS Approval, and one inside a DMH-licensed facility gets the separate DMH-facility SUD license.

Does CARF or Joint Commission accreditation replace any part of this process?

Possibly. 105 CMR 164.005 defines Deemed Status as BSAS accepting accreditation as evidence of compliance with one or more requirements, but the regulation names no approved accreditors and lists no covered requirements. It doesn’t replace the Notice of Intent process. Confirm with BSAS what your accreditation counts for.

See our Massachusetts Behavioral Health Licensing page for the full picture.

This content is provided for general informational purposes only and should not be construed as medical, clinical, legal, financial, tax, accounting, insurance, licensing, accreditation, regulatory, billing, employment, or compliance advice. Requirements change often. Consult qualified professionals for guidance specific to your situation.

Figuring out which BSAS category fits your Massachusetts program? Let’s talk it through.

Sources

• Massachusetts DPH, 105 CMR 164.000 (164.005 definitions, 164.006, 164.009, 164.011, 164.031): Licensure of Substance Use Disorder Treatment Programs (checked October 8, 2026)
• 105 CMR 164 Part Two, 164.100 through 164.454 (Cornell LII mirror): Requirements for Service Provision, including 164.132, 164.134, 164.151 and 164.153 (checked October 8, 2026)
• 105 CMR 164.505 (Justia mirror): Part Three scope for DMH and BHCSQ licensed facilities (checked October 8, 2026)
• BSAS: Information for Initial SUD Program Licensure and the General Suitability Notice of Intent (checked October 8, 2026)
• CARF: ASAM Level of Care Certification (checked October 8, 2026)
• Board of Registration in Nursing: Advisory Ruling 9101, Administration of Medications for Sedation/Analgesia (checked October 8, 2026)
• 244 CMR 4.07 (Justia mirror): NP prescriptive practice after two years of supervised practice (checked October 8, 2026)
• Massachusetts DPH: Reminder to Licensees Regarding Licensure Obligations, January 3, 2024 (checked October 8, 2026)
• M.G.L. c. 156A, § 2: professional corporations, physicians included; M.G.L. c. 156C, § 6: LLCs rendering professional services (checked October 8, 2026)
• 18 U.S.C. § 220 (Cornell LII): Illegal remunerations for referrals to recovery homes, clinical treatment facilities, and laboratories (checked October 8, 2026)