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Washington Employers Face New I-9 Inspection Notice Rules Oct. 1

Carol Warner
By: Carol Warner
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About the Author

For nearly two decades, Carol Warner has analyzed the legal and financial realities behind workplace decisions, covering employment law, benefits, payroll and HR technology. She translates complex legal updates, regulatory shifts and vendor claims into plain language that HR teams can act on. Her focus is simple: What does this mean for employers, and what should they do next? Connect with her on LinkedIn.

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Last Updated: September 21, 2026
1 minute engagement
A Corporate Memphis style promotional graphic for an HRMorning article titled "NEW STATE LAW." The text is set in bold white typography against a deep terracotta background. On the right, the illustration depicts a diverse pair of professionals standing before a stylized municipal or state government capitol building. A man in a tan blazer displays a signed legal scroll featuring a United States map outline and a gold seal, while a female colleague in a dark green shirt and yellow pants ponders the text with a hand to her chin. Floating geometric shapes drift in the background, reinforcing themes of regional legislative adjustments, regulatory compliance audits, and legal oversight.

Washington employers must display a new workplace poster under the state’s Immigrant Worker Protection Act.

The state Attorney General’s Office released the poster, along with model employee notices and employer guidance, on Sept. 1, 2026, ahead of the law’s Oct. 1, 2026, effective date.

The AGO provides two separate notices: One for the I-9 inspection event itself, which must be posted where all workers can see it, and one for affected employees. All materials are available in English, Mandarin, Russian, Spanish, Ukrainian and Vietnamese.

Under the law, employers must inform workers within five business days after receiving a federal notice of inspection of workers’ employment-eligibility documents, including Form I-9s.

More info: Washington IWPA poster and notice materials

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