School DecisionThe Newsroom
SATURDAY, SEPTEMBER 5, 2026
Beyond the headline
SCHOOLDECISION.COM/NEWSROOM
Oregon · Policy & Funding

Oregon's SB 141 mandates three-times-yearly K-8 interim testing starting 2026-27, with four approved platforms and public board reporting

The 2025 Education Accountability Act requires districts to administer interim assessments in math and English language arts three times a year for grades K-8. About one-third of districts must switch vendors, and the law sets performance growth targets across eight goal areas by 2029-30.

Selected Oregon performance growth targets, current (2024-25) and target (2029-30)70.7%K-2 attendance (current)82%K-2 attendance (target)66.5%K-12 attendance (current)78.3%K-12 attendance (target)40.3%3rd grade ELA proficient (current)52.6%3rd grade ELA proficient (target)28.9%8th grade math proficient (current)52%8th grade math proficient (target)83%4-year graduation (current)92.3%4-year graduation (target)
Original Research by SchoolDecision.com
Current statewide values for 2024-25 and adopted four-year targets for 2029-30, as published by the Oregon Department of Education. [4]

Oregon school districts have less than a year to prepare for a new state mandate requiring interim assessments in math and English language arts three times per year for every student in grades K-8. The 2025 Education Accountability Act, Senate Bill 141, was passed by the Oregon Legislature and took effect upon passage as an emergency measure. The interim testing requirements become operative on July 1, 2026, and first apply to the 2026-27 school year.

What the law requires

Under Section 24 of the bill, which amends Oregon Revised Statutes 329.485, each school district and public charter school must choose interim assessments from the Oregon State Board of Education's approved list. The tests must be administered at least three times per school year in both math and language arts for all students in kindergarten through eighth grade. District officials must review the resulting data at least three times annually with building administrators and during a public meeting that includes the superintendent and school board.

The approved test vendors

The State Board adopted the approved vendor list on February 19, 2026, about three weeks after a January 31 statutory deadline. The four vendors are iReady from Curriculum Associates, MAP Growth from Houghton Mifflin Harcourt, Star from Renaissance, and Smarter Balanced delivered through Cambium. The State Board selected them through an open, competitive Request for Qualifications process that prioritized technical quality, accessibility, alignment to Oregon standards, and equity. According to the Oregon School Boards Association, which reported on the process, no single vendor met all of the Oregon Department of Education's evaluation criteria.

The four tests differ in their features, according to ODE's implementation guidance. iReady and MAP Growth are computer-adaptive and cover kindergarten through grade 12, with testing times of 45 to 60 minutes. Star is also computer-adaptive across K-12 but takes 15 to 30 minutes. Smarter Balanced via Cambium is not computer-adaptive and covers only grades 3 through 12, with a testing time of 45 to 55 minutes. Districts that choose Smarter Balanced for grades 3 through 8 may use one of the other approved tests to cover kindergarten through grade 2.

1 millionOne-time state funding, in dollars, identified by ODE to support districts transitioning from unapproved interim tests to approved ones. [2]

Transition costs and timing

The Oregon Department of Education has identified $1 million in one-time funding to help districts make the switch. Money will be distributed by formula to eligible districts and charter schools. But the costs vary widely by vendor, contract terms, start-up fees, platform needs, and per-student fees. According to an Oregon School Boards Association report citing an ODE survey, roughly one-third of Oregon districts will need to change or add interim tests to comply with the approved list. The OSBA and education advocates have asked ODE to provide accommodations for districts that need to purchase new materials, modify technology systems, train staff, and align curriculum.

Districts that need to switch may continue using their current unapproved interim test during the 2026-27 school year for compliance purposes, but the new approved test or tests must be in place no later than August 30, 2027. ODE recommends allowing three to four months for professional learning, technology integration, and schedule alignment.

Performance growth targets and consequences

SB 141 establishes eight goal areas for statewide performance growth targets that districts must meet by the 2029-30 school year. The goals include on-time graduation rate, five-year completion rate, ninth-grade on-track rate, eighth-grade mathematics proficiency rate, third-grade reading proficiency rate, regular attendance rate for all K-12 students, regular early-grade attendance rate for kindergarten through second grade, and a local metric rate. For the local metric, each district selects one option from five State Board-adopted choices: 5th Grade Science Achievement, Academic Growth, Career and Workforce Readiness, Multilingual Proficiency, or Postsecondary Readiness.

The law establishes an escalating intervention system for districts that do not meet their performance growth targets. After two years of not meeting targets, a district must accept coaching from ODE. After three or more years, the district must participate in intensive coaching. After four or more years, ODE can direct up to 25 percent of a district's State School Fund allocation toward prescribed investments.

Analysis

By the School Decision Newsroom, written after the reporting above was filed.

The $1 million transition fund works out to roughly $9 per affected student. The annual license alone costs more.

Oregon has about 545,000 K-12 students, roughly 330,000 in grades K-8. If one-third of districts serve about one-third of those students, roughly 110,000 children are affected. One million divided by 110,000 is about $9 per student. Vendor pricing runs from $7.25 per student per subject for iReady to $13.50 for a bundled MAP Growth suite, before training costs of $2,200 per session and startup fees. For two subjects, a district pays $15 to $68 per child annually. The state's one-time payment covers a fraction of year one and nothing after that.

The 8th grade math target asks Oregon to nearly double proficiency in four years against a five-year decline.

Oregon's state assessment shows 28.9 percent of 8th graders proficient in math. The 2029-30 target is 52 percent, a 23-point jump. NAEP, the national benchmark, tells a harder story: Oregon 8th grade math proficiency fell from 31 percent in 2019 to 22 percent in 2022 and recovered only to 24 percent in 2024. The trajectory is flat or down. The law mandates testing and public data review three times a year but attaches no new instructional funding. No state has posted a 20-point gain in 8th grade math proficiency in four years on any measure during the modern testing era.

The penalty for missing targets redirects money from the districts least equipped to meet them.

After four years of falling short, ODE can redirect up to 25 percent of a district's State School Fund allocation toward prescribed investments. The State School Fund distributes about $7.4 billion to Oregon districts annually. Districts serving high-poverty communities start furthest from the targets and are the most likely to trigger the escalation. A district missing the 8th grade math goal, where the current statewide rate is 28.9 percent and the target is 52 percent, could lose control of a quarter of its state funding to investments chosen by ODE rather than local leaders. Our read, not the law's: the stick falls hardest where capacity is thinnest.

Sources

  1. Oregon Legislative Information System. Senate Bill 141 Enrolled Text View
  2. Oregon Department of Education. Interim Tests - Oregon Department of Education View
  3. Oregon Department of Education. Interim Test Implementation Guide View
  4. Oregon Department of Education. Performance Growth Targets - Oregon Department of Education View
  5. Oregon School Boards Association. Smarter Balanced rounds out list of Oregon interim assessments that meet law View
  6. OregonLive. Oregon public school enrollment levels off, with no sign of rebound from deep post-pandemic losses View
  7. National Center on Intensive Intervention. MAP Growth Mathematics - Academic Intervention Tools Chart View
  8. National Center on Intensive Intervention. i-Ready Diagnostic - Academic Intervention Tools Chart View
  9. National Center for Education Statistics. 2024 Mathematics State Snapshot Report - Oregon Grade 8 View
  10. National Center for Education Statistics. 2019 Mathematics State Snapshot Report - Oregon Grade 8 View
  11. Oregon Department of Education. 2024-25 State School Fund Estimates View
Oregon's SB 141 mandates three-times-yearly K-8 interim testing starting 2026-27, with four approved platforms and public board reporting | School Decision