How to start an IOP in Washington: the behavioral health agency license, fees and the steps

Who wrote this, honestly

We're Texas operators: we run a licensed Texas outpatient program, PHP through outpatient, and built our own EHR to run it. When we help an owner open in another state, the first task on that client's roadmap is "apply for your state's SUD treatment program license", and the work behind it is finding the state's rule and checking it against the agency's current text. This guide is that check for Washington, and it's the same work our IOP / PHP Program Launch does for a client opening outside Texas. Where we couldn't confirm a detail, we left it out or told you who to ask.

Comparing the West? Read our guides for California, Colorado and Utah, or how to start an IOP or PHP in Texas.

Washington at a glance

Question	Washington's answer
Who licenses SUD programs	Washington State Department of Health (DOH), as behavioral health agencies
Rule	Chapter 246-341 WAC, behavioral health services administrative requirements; general agency requirements in WAC 246-341-0300 to 0650
What an IOP gets	An agency license plus a certification for each service
Application fees	New agency $2,250; branch agency $1,150; add one or more certifications $450; change of ownership $1,150 (effective July 15, 2025)
Outpatient licensing fee	By annual service hours: $1,650 to $5,800 non-deemed, $830 to $2,900 deemed
Counselor credential	DOH's substance use disorder professional (SUDP) and SUDP trainee (SUDPT), chapter 246-811 WAC
Medicaid	Apple Health integrated managed care through five MCOs, with a BH-ASO in each region

A license plus certifications

Washington doesn't license an "IOP" as a facility type. It licenses the agency and certifies each service the agency provides, so the DOH fee schedule has a line for "add one or more certifications" as well as a line for a new agency. A second site is a branch agency with its own fee. Plan your service list (assessment, outpatient treatment at the intensities you'll offer, any medication services, any mental health services) before you apply; each needs its certification.

The agency has to meet the general licensure, administration, personnel and clinical requirements in WAC 246-341-0300 through 246-341-0650 for every service. Read those sections as closely as the service sections; a DOH surveyor checks both. If you'll also run residential, withdrawal management or an opioid treatment program, those have their own sections, and residential treatment facilities are also licensed under chapter 246-337 WAC. For how intensive outpatient differs from partial hospitalization and standard outpatient, see IOP vs. PHP vs. outpatient.

Where the IOP rule went

Many guides online still quote a Washington rule that isn't there anymore.

• 2019 to 2021: WAC 246-341-0740 was titled "level two intensive outpatient substance use disorder services": a concentrated program of individual and group counseling, education and activities under the ASAM criteria, with group ratios of one staff member to 16 clients and a second staff member for youth groups of 12 to 16.
• By 2024: the same section number is titled "Deferred prosecution under RCW 10.05.150—Service standards". It still requires at least 72 hours of treatment within 12 weeks, with at least three sessions a week in the first four weeks, for clients in deferred prosecution, but the intensive outpatient framing is gone.

What it means for you. Don't copy a staffing ratio or service definition from an old Washington policy manual. Read the current chapter 246-341 WAC, ask DOH which outpatient certification covers the ASAM Level 2.1 program you plan, and build the schedule from ASAM and your payers' rules. If you'll accept deferred prosecution clients from the courts, build the 72-hour, 12-week track into your schedule. Our IOP schedule template shows how a week fits together.

The rules to read

Rule or document	What it covers
Chapter 246-341 WAC	Behavioral health agency licensing and certification: general requirements, service standards, fees
WAC 246-341-0300 to 0650	General licensure, administration, personnel and clinical requirements every agency meets
WAC 246-341-0365	Fees, amended by WSR 25-08-069, effective July 15, 2025
WAC 246-341-0740	Now: deferred prosecution service standards (RCW 10.05.150)
Chapter 246-811 WAC	SUDP and SUDPT credentials, including experience and supervision (246-811-046 to 049)
WAC 182-538-067	What a managed care organization must do to serve Apple Health integrated managed care, including contracting with a BH-ASO

Our launch package builds the policy manual as a crosswalk: every requirement in chapter 246-341 and your accreditor's standards matched to a policy, form or record. In Washington we build it from the current chapter, because section numbers and titles have moved.

Fees since July 2025

DOH raised behavioral health agency fees to fund its inspection, investigation and licensing programs. The order, WSR 25-08-069, was filed April 1, 2025 and took effect July 15, 2025. DOH's behavioral health agency fees page lists:

Fee	Amount	Our notes
New agency application	$2,250	Older pages still show $1,000; that's the pre-July 2025 figure
Branch agency application	$1,150	Each added site
Add one or more certifications	$450	Add services in one request to pay once
Change of ownership	$1,150	Buying a program? See buying a treatment center
Outpatient initial and annual licensing, non-deemed	$1,650 (0 to 3,999 annual service hours) up to $5,800 (50,000 or more)	A new program starts in the lowest tier
Outpatient initial and annual licensing, deemed	$830 up to $2,900 across the same tiers	Deemed status follows accreditation DOH recognizes; ask DOH which accreditors qualify
Complaint or critical incident investigation	$2,250	Another reason to run incident reporting well

Worked example: a new, non-accredited outpatient agency with one site pays the $2,250 application fee plus the $1,650 licensing fee for the lowest service-hour tier, $3,900 in its first year before any extra certifications. If it withdraws before DOH decides, DOH may refund half the application fee; there are no refunds when a license is denied, revoked or suspended. The halved licensing fee for deemed agencies is one reason to look at accreditation early: what accreditation costs and how long it takes and Joint Commission vs. CARF help you decide.

SUDPs and staffing

DOH credentials substance use disorder professionals. Per its SUDP and SUDPT certification requirements:

Path	Supervised experience
Associate degree or qualifying coursework	2,500 hours
Bachelor's degree	2,000 hours
Master's or doctoral degree	1,500 hours
Registered apprenticeship	4,000 hours
Alternative track for licensed providers (WAC 246-811-076)	1,000 hours, for professions such as nurses, counselors, social workers, psychologists, physicians and pharmacists

• Exam. The NAADAC exam at level one or higher; DOH also accepts the IC&RC ADC or AADC exam.
• Trainees. A SUDPT credential is valid for one year and renews annually; House Bill 2247 removed the cap on renewals effective July 1, 2024.
• Supervisors. Per DOH's approved supervisor form, a supervisor holds an unrestricted SUDP credential in good standing for at least a year, and supervisors credentialed on or after May 31, 2024 complete at least 28 clock hours of clinical supervisor training. Plan who supervises each trainee before you hire them.
• Every hire gets checked against the federal OIG exclusion list, and chapter 246-341's personnel sections set the agency's own file requirements.

We build personnel files from our staff credential file checklist and add each state's items; in Washington that includes each trainee's supervisor and renewal date.

Apple Health, the MCOs and BH-ASOs

• Five plans. The Health Care Authority (HCA) contracts with five organizations for Apple Health managed care: Community Health Plan of Washington, Coordinated Care, Molina Healthcare of Washington, UnitedHealthcare Community Plan and Wellpoint Washington (formerly Amerigroup). Not every plan serves every county; HCA's service area map shows which plans serve each integrated managed care region.
• BH-ASOs. Under WAC 182-538-067, an MCO serving integrated managed care contracts with HCA and with the region's behavioral health administrative services organization, which runs crisis services and services for people who aren't on Medicaid. Contract with the MCOs your clients carry, and talk to your BH-ASO about non-Medicaid funding and crisis coordination.
• Medicare pays for IOP and PHP only through hospitals, community mental health centers and a few other provider types, so most freestanding programs plan without it (CMS 2024 outpatient rule).

Our credentialing service handles Medicaid enrollment, plan credentialing and facility contracts in any state, and getting insurance contracts for an IOP explains the facility packet commercial plans ask for. Before every admission, verify benefits and authorization; the VOB checklist covers what to ask.

We found no Washington statute specific to patient brokering, but the federal laws apply to every payer. Pay marketers a salary, never per admission; our guide to patient brokering laws explains the federal ones.

The steps, in order

1. Define the program: the certifications you need, adults or adolescents, hours and ASAM levels, and whether you'll take deferred prosecution clients.
2. Form the business with the Washington Secretary of State, get the EIN and the organization NPI, and line up a health-care attorney and CPA.
3. Find a site local zoning allows for an outpatient behavioral health agency, and lease with a way out.
4. Write the policy manual from the current chapter 246-341 WAC, plus 42 CFR Part 2 and HIPAA.
5. Hire the director, clinical supervisor and SUDPs, and assign an approved supervisor to each trainee.
6. Apply to DOH for the agency license and each certification, with the July 2025 fees.
7. Set up the EHR before the survey: Cima's IOP and PHP plan keeps levels of care, group notes, attendance and authorizations in one place.
8. Once licensed, enroll with Apple Health, contract with the MCOs in your region, and talk to the BH-ASO.
9. Decide on accreditation: it can halve the annual licensing fee and many commercial plans and TRICARE want it.
10. Keep it current: pay the annual fee, renew trainees every year, and keep drills and chart reviews on a schedule with the compliance calendar.

Questions

Do you need a license to open an outpatient rehab in Washington?

Yes. An outpatient substance use program is a behavioral health agency licensed by the Department of Health under chapter 246-341 WAC, with a certification for each service it provides.

How much is a behavioral health agency license in Washington?

Since July 15, 2025: $2,250 for a new agency application, $450 to add certifications, and an initial and annual outpatient licensing fee by annual service hours, $1,650 to $5,800 for a non-deemed agency and $830 to $2,900 for a deemed agency (WAC 246-341-0365).

Does Washington still have a level two intensive outpatient rule?

Not under that title. WAC 246-341-0740 was "level two intensive outpatient substance use disorder services" in 2019 to 2021; by 2024 it covered deferred prosecution service standards. Ask DOH which outpatient certification covers your ASAM Level 2.1 program.

What is a SUDP in Washington?

A substance use disorder professional credentialed by DOH. It takes 1,500 to 2,500 hours of supervised experience depending on degree (4,000 in an apprenticeship, 1,000 on the alternative track for licensed providers) and the NAADAC or IC&RC exam. Trainees hold a SUDPT credential that renews every year.

Which Medicaid plans should a Washington IOP contract with?

The Apple Health MCOs that serve your region: Community Health Plan of Washington, Coordinated Care, Molina, UnitedHealthcare Community Plan and Wellpoint Washington, as HCA's service area map shows. Each region also has a BH-ASO for crisis and non-Medicaid services.

Can a Texas company help with a Washington program?

Yes, if it's honest about how. We run a Texas program, so in Washington we work from chapter 246-341 WAC, DOH's guidance and HCA's rules, check each against the current text, and tell you where DOH, HCA, the plans or your attorney has the final word. We don't guarantee a license, contract or date.

Want the deemed-status fee and the commercial contracts that come with accreditation? Program Launch + Accreditation is $54,500. Or book a free 30-minute call and we'll walk through what Washington will ask of you.

Cima Consulting isn't a law firm or an accounting firm. Washington agencies make their own decisions; we don't guarantee approvals, rates or dates. Never pay or accept anything of value for patient referrals: federal law (EKRA and the Anti-Kickback Statute) applies in every state, and ask your attorney about Washington's own rules.

Sources

• Chapter 246-341 WAC: app.leg.wa.gov; WAC 246-341-0740 as of 2020 (level two intensive outpatient): WAC archive; current text (deferred prosecution): Justia
• Fees: WSR 25-08-069 (effective July 15, 2025); WSR 25-05-090 (proposal); DOH behavioral health agency fees
• SUDP: DOH certification requirements; approved supervisor declaration
• Apple Health: HCA managed care reports; service area map; WAC 182-538-067 (Cornell LII)
• OIG exclusions: oig.hhs.gov; CMS, CY 2024 outpatient rule: cms.gov; EKRA: Cornell LII

Comparing states? See Texas and our guides for Alabama, Arizona, California, Colorado, Delaware, Florida, Georgia, Illinois, Indiana, Kentucky, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Missouri, Nevada, New Jersey, New Mexico, New York, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, Tennessee, Utah, Virginia, West Virginia and Wisconsin, or how to start an IOP for what every state has in common.