Washington MP 302: Emergency Initial Detention

A Washington designated crisis responder files the MP 302 to seek emergency initial detention of an adult or adolescent with a mental disorder, substance use disorder or both, under RCW 71.05.153 and RCW 71.34.710. A clinician meets it when a person is already held in emergency custody at a facility and a DCR evaluates them. The petition asks the court to order evaluation and treatment for up to 120 hours.

Who completes it

A designated crisis responder from a county, or from the Health Care Authority in consultation with a tribe, completes the petition, notice of rights and proof of service. Witnesses may add an optional declaration.

Submitting and payment

How to submit it
The DCR files the petition with the superior court and serves the respondent with the petition and notice of rights, with copies to any guardian, the Department of Corrections or a tribal provider when they apply.

Good to know

  • The petition must show an imminent likelihood of serious harm or imminent danger from grave disability, and must name the facility where the person is held.
  • Rights include a probable cause hearing within 120 hours, excluding weekends and holidays, and an independent examiner at public expense if the person cannot pay.
  • Within 24 hours of admission, not counting time before medical clearance, a physician and a mental health or substance use disorder professional must examine the person.
  • Adults are coded as mental disorder, substance use or co-occurring, with separate codes for adolescents; the non-emergency adult version is MP 301.

Get the official form

Download the current version from the source each time; forms change without notice.

Petition for Initial Detention DCR (Emergency) (Adults & Adolescents)

Fill it with Vero

If your copy of the form is a fillable PDF, upload it once and Vero Documents fills it from the visit note and the chart, ready for you to review and sign. Download, print, or email the finished form, with the patient’s consent.

How this list is checked

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Frequently asked questions

How long can a person be held on a Washington MP 302?

The petition asks for an evaluation and treatment period of no more than 120 hours. During that time the person has the right to a probable cause hearing within 120 hours, excluding Saturdays, Sundays and legal holidays, on whether to commit them for up to 14 days inpatient or 90 days outpatient.

Can the MP 302 be used for adolescents?

Yes. Unlike the non-emergency MP 301, which is for adults only, the MP 302 has checkboxes for adolescents with a mental disorder, a substance use disorder or co-occurring disorders, citing RCW 71.34.710 alongside the adult provisions in RCW 71.05.