This page includes forms, fees, and instructions for all domestic business entities, foreign and domestic Registered Agents, and Washington Trademarks. Welcome to Washington State Courts.This form is an agreement extending the limitation for filing claim for refund and assessment of sales and use tax. Use Form I9 to verify the identity and employment authorization of individuals hired for employment in the United States. Type or print clearly. 1 Legal name of entity (or individual) for whom the EIN is being requested. These are the most frequently requested US Department of Labor forms. You can complete some forms online, while you can download and print all others. Forms related to Commercial Vehicle.