This bill reenacts and amends RCW 28A.335.190 to revise and restate school district purchasing and public bidding rules. It keeps and clarifies procedural requirements for public bids and notices (plans/specifications, published notice once a week for two consecutive weeks in a district newspaper), requires written bids that are opened/read in public and filed for inspection, and directs awards to the lowest responsible bidder as defined in RCW 39.26.160(2) while allowing boards to reject any or all bids and re-solicit. The statute changes procurement thresholds and procedures: purchases of furniture, equipment, or supplies (except books) estimated to exceed $75,000 must be made on a competitive basis; purchases estimated from $75,000 up to $150,000 require at least three quotations recorded for public perusal; purchases in excess of $150,000 require the public bidding process. Any building, improvement, repair, or other public works project estimated at $100,000 or more requires public bidding unless the small works roster process or another authorized procedure is used. Boards may have an internal department perform improvements or repairs without public bidding when the total does not exceed $100,000. Educational service districts may be authorized to establish and operate small works rosters for one or more school districts. The section also adds or restates other procedural and definitional provisions: it authorizes districts to purchase goods from Department of Corrections class II inmate work programs and encourages targeting up to 1% of annual purchases from those programs beginning after June 30, 2006; it allows boards to adopt policies favoring Washington-grown food, including a defined "price percentage preference"; it excludes certain professional services from the definition of "construction work" (e.g., construction management, value engineering, constructability review, building commissioning) and, beginning January 1, 2023, requires procurements for those excluded services to include clauses required by RCW 39.19.050 and to follow procurement requirements in chapter 39.10 or 39.80 RCW, with interlocal agreements permitted only if procured competitively under those chapters. Boards may waive bidding in an emergency by adopting a resolution reciting the facts; "emergency" is defined in the section. The text provided is a single amended section and references other RCWs and chapters for substantive criteria and procedures that are not reproduced here, so the detailed content of those referenced provisions is not included.

If enacted, school district boards and their procurement staffs will face clearer, higher-dollar triggers for formal competition and public bidding: purchases over $75,000 must be competitively solicited, $75,000–$150,000 require at least three documented quotes, and purchases above $150,000 must go through public bidding with published notices and public bid openings; building or repair projects of $100,000 or more also require bidding unless done through a small works roster or another authorized procedure. That will increase routine administrative work (public notices, recordkeeping, bid handling) and make larger purchases more transparent and competitive, which may lower prices but also raise compliance costs and timeline risks; contractors will need to compete publicly and meet "lowest responsible bidder" standards, and districts can still avoid formal bidding for internal projects under $100,000 or declare emergencies with a board resolution. The bill also lets educational service districts run small works rosters for multiple districts, encourages districts to buy up to 1% of goods from class II inmate work programs, and permits boards to adopt a price preference for Washington-grown food, so some purchasing patterns and suppliers could shift modestly. Procurement of construction-related professional services must follow other competitive procurement rules and include specific clauses beginning January 1, 2023, which likely raises compliance needs, but the text refers to other statutes for many procedural details, so exact implementation steps and requirements are unclear without consulting those referenced chapters.