Washington IEP requirements: two school-day clocks, the August 31 rule, and the High School and Beyond Plan

Washington’s special education rules live in WAC 392-172A, administered by OSPI, and the first thing to internalize is that the state’s two big timelines run in school days, not calendar days: 25 school days from a referral to the decision whether to evaluate, and 35 school days from written consent to a completed evaluation and eligibility decision (WAC 392-172A-03005). That’s slower than it sounds in fall — but it means the clock never runs over winter break or summer, unlike states on calendar-day clocks. SPED teachers moving in from California (60 calendar days) or Georgia (60 calendar with a summer pause) should recalibrate. Every deadline below is cited to the WAC section fetched from the state legislature’s current text.

Every Washington deadline in one table

The referral clock most states don’t have

In many states a referral just starts a consent conversation. Washington puts a deadline on the district’s decision: within 25 school days of receiving a referral request, the district must document the request date, notify the parent, examine existing records, and decide — with parental input — whether to evaluate, then issue prior written notice of that decision (WAC 392-172A-03005(2)). Referrals must be in writing unless the person can’t write or communicate orally, and every district must keep an optional referral form available to the public and provide it in the requestor’s native language or with interpreter support when needed. If you’re the case manager fielding a gen-ed teacher’s concern, get it in writing — the clock starts on receipt, not on the first meeting.

35 school days to evaluate — and what stops the clock

From the date the parent hands the district written consent, the district has 35 school days to fully evaluate the student and arrive at an eligibility decision (WAC 392-172A-03005(3)). The same clock applies when consent comes through mediation or an administrative law judge overrides a refusal. There are exactly three ways the timeline moves: the parent and district agree to a different period in writing with documented reasons; the parent repeatedly fails or refuses to produce the student; or the student enrolls in a new district mid-evaluation and the new district is making sufficient progress with a parent-agreed completion date. After eligibility, the IEP meeting must happen within 30 days, services start as soon as possible after the IEP is developed, and — a wrinkle worth knowing — referrals arriving through Part C (Birth-to-Three) notification run on their own timeline under WAC 392-172A-02080, not the 25-day clock.

What Washington writes into the IEP that IDEA doesn’t

The content list in WAC 392-172A-03090 tracks the federal template — present levels, measurable annual goals, progress reporting, services and LRE — then adds state-specific items case managers get audited on:

• A behavioral intervention plan, if the team determines one is necessary for FAPE — written into the IEP content rule itself ((1)(h)).
• Emergency response protocols, if necessary for FAPE and only with parent consent ((1)(i)).
• The district’s isolation and restraint notification procedures under RCW 28A.155.210 ((1)(m)) — every IEP, not just students with behavior plans.
• Alternate-assessment documentation: benchmarks or short-term objectives in assessed areas, plus documentation that parents were told alternate standards may delay or affect a regular diploma ((1)(b)).
• Transition aligned with the High School and Beyond Plan — postsecondary goals and transition services must describe how they align with the graduation-planning document Washington requires of all students ((1)(k)).

The rule closes with a construction clause teachers can quote back to over-eager form vendors: nothing in it requires information in the IEP beyond what federal regulations or state law explicitly require, and nothing has to appear twice ((2)).

The August 31 rule and how eligibility ends

Washington serves eligible students ages 3 through 21 (WAC 392-172A-02000), with a bright line for the last year: a student whose 21st birthday is on or before August 31 is not eligible that school year; a student who turns 21 after August 31 finishes the school year with services. Eligibility otherwise ends only four ways: a reevaluation group with the parent determines the student no longer qualifies; the student graduates with a regular diploma — which the rule treats as a change of placement requiring prior written notice, and which does not include a certificate of completion or GED; the parent revokes consent in writing; or the student ages out. Do not let a graduation walk happen without the PWN.

What this means for your caseload

• Count school days, not weeks. A referral on June 1 can legitimately resolve in September — but a referral in early fall must resolve before winter break. Map both clocks against the district calendar the day the paper lands.
• Document teacher notification. WAC 392-172A-03105(3) makes you responsible for each implementing teacher knowing their specific responsibilities and accommodations — a one-page IEP at a glance with a signature line is the cleanest evidence.
• Transfers work the federal way. Comparable services until the district adopts the old IEP or writes a new one (in-state), or evaluates if necessary (out-of-state) — the workflow in our transfer students guide applies, and both districts have a duty to move records promptly.
• Flag every 15-year-old in spring. The transition IEP must be in effect when the student turns 16 and must reference the High School and Beyond Plan — pull the HSBP before the meeting, not after.

FAQ