Washington State Deferred Prosecution Treatment Requirements

A deferred prosecution in Washington centers on a two-year treatment plan through a state-approved agency, followed by three more years of court supervision, with an ignition interlock and strict sobriety conditions running alongside. Washington state deferred prosecution treatment requirements are set by statute and by Department of Health service standards, and the court will not accept a petition without a written assessment from an approved facility confirming you need treatment and are likely to benefit from it.¹

The Two-Year Treatment Plan

Treatment is the spine of the program. It lasts two years, is administered by a state-approved agency, and must be approved by the court before you begin. The plan itself moves through two phases.

Intensive Outpatient Phase

The first phase requires a minimum of 72 hours of treatment services within a maximum of 12 weeks. During the first four weeks, you attend at least three sessions per week on separate days, with group sessions running at least one hour each. On top of the 72 formal hours, you’re required to attend self-help recovery meetings.²

Follow-Up Phase

After the intensive phase, you shift into a less frequent stage that fills out the remainder of the two years. This typically involves regular outpatient counseling and continued attendance at self-help recovery meetings such as Alcoholics Anonymous or Narcotics Anonymous. The specific schedule lives in your approved treatment plan, and it can vary, but the court must sign off before it takes effect.

The Three-Year Tail

Finishing the two-year plan does not end the program. You then serve three more years under the court’s jurisdiction, continuing to comply with every condition the judge imposed. Only after the full five years does the court dismiss the underlying charge.

Court Conditions That Run Alongside Treatment

Treatment is one piece. The court layers on additional conditions that generally last the full five-year term.

Ignition Interlock Device

For any substance use disorder-based deferred prosecution, the court must order an ignition interlock device on every vehicle you operate. The device demands a clean breath sample before the engine will start and at random intervals while you drive.³

How long the device stays on depends on your history. With no prior interlock restriction, the minimum is one year. With one prior restriction, five years. With two prior restrictions, ten years. Time you spent with an interlock before the deferred prosecution was granted, such as during the administrative license process, counts day-for-day.⁴

Sobriety, Testing, and Behavior

The court has broad discretion to add conditions aimed at reducing the risk of reoffending. In substance-related cases, judges almost always impose complete abstinence from alcohol and non-prescribed mind-altering drugs, random urinalysis or breath testing, self-help recovery group attendance, and law-abiding behavior throughout the five years.³

You must also carry valid liability insurance and cannot drive without a valid license for the duration of the program. The court can order restitution and costs on top of that.

The Stipulation You Sign to Enter

Before the court grants your petition, you sign a statement acknowledging your rights as an accused person and waiving your right to testify, your right to a speedy trial, your right to call witnesses, your right to present a defense, and your right to a jury trial. You also stipulate that the facts in the police report are admissible and sufficient to support a conviction.⁵

That last piece is what gives the treatment requirements their weight. If you fail to comply, the prosecutor doesn’t have to prove anything. The judge reads the police report you already agreed was accurate and enters a finding of guilt.

What a Violation Triggers

Your treatment agency, probation officer, and interlock monitor are all required to report any breach of a treatment condition or court order to the court, the prosecutor, and you or your attorney.⁶

The court then holds a hearing. You can present evidence in your defense. The judge either continues you on the treatment plan or removes you from the program. Judges do sometimes grant a second chance on minor or technical issues. For serious violations such as a new arrest or a positive test, removal is the typical outcome.

Removal means conviction. The judge enters a finding of guilt on the stipulated police report and moves to sentencing on the original charge.⁵

Paying for the Program

Treatment is not free, and falling behind on the bill is itself a compliance problem. You are responsible for the cost of the two-year treatment program, which can run several thousand dollars depending on the provider and how much of it your insurance will cover. Additional costs to plan for:

Substance abuse evaluation: the initial assessment supporting your petition typically runs $100 to $350.
Ignition interlock device: monthly leasing and calibration fees paid directly to the vendor for the length of the restriction.
Probation monitoring: monthly supervision fees throughout the program.
Court costs: the court may order costs under RCW 10.01.160 as a condition of granting the deferred prosecution.³

Missed payments to your treatment provider or interlock vendor can be reported as non-compliance and put the entire deferred prosecution at risk.

After the Five Years

Complete every requirement and the court dismisses the charge. The dismissal is real, but it doesn’t wipe the slate for future DUI sentencing. A completed deferred prosecution still counts as a prior offense under Washington’s DUI sentencing scheme in RCW 46.61.5055, which uses prior offenses to escalate mandatory minimums. The only situation where your first deferred prosecution does not count as a prior is when a court is deciding whether to grant you a second one.⁶

Two Boundaries Worth Knowing Before You Sign

The deferred prosecution is a criminal court matter. It does not resolve your driver’s license case. The Department of Licensing runs an independent administrative process after a DUI arrest that can suspend or revoke your license regardless of the court outcome. If you plan to petition for deferred prosecution, you can notify DOL and request a postponement of the administrative suspension using the department’s form; the deadlines are short.⁷

For non-citizens, the program is a trap dressed as a break. Federal immigration law treats a conviction as existing when a person admits sufficient facts to warrant a finding of guilt and a judge imposes some form of restraint on liberty.⁸ Washington’s own courts confirm that a deferred prosecution under RCW 10.05 is a permanent conviction for immigration purposes the moment it is entered, because the statute requires both a stipulation to facts and an admission that the person does not believe they are innocent.⁹ Successful completion and dismissal five years later do not change that. Talk to an immigration attorney before agreeing to enter the program.

1
Washington State Legislature. RCW 10.05.010 – Petition – Eligibility
2
Legal Information Institute. WAC 246-341-0740 – Deferred Prosecution Under RCW 10.05.150 – Service Standards
3
Washington State Legislature. RCW 10.05.140 – Conditions of Granting
4
Washington State Legislature. RCW 46.20.720 – Ignition Interlock Device Restriction – For Whom Required
5
Washington State Legislature. RCW 10.05.020 – Requirements of Petition – Rights of Petitioner
6
Washington State Legislature. Chapter 10.05 RCW – Deferred Prosecution – Courts of Limited Jurisdiction
7
Washington Department of Licensing. Intent to Seek Deferred Prosecution
8
U.S. Citizenship and Immigration Services. USCIS Policy Manual Volume 12, Part F, Chapter 2 – Adjudicative Factors
9
Washington Courts. Washington Criminal Courts and Immigration – Chapter 6