Requires Washington employers who are not self-insured under chapter 51.14 RCW to obtain workers' compensation coverage from the state fund for temporary and incidental work performed on jobs or at jobsites in another state by their Washington workers. The department is authorized to adopt rules governing premium liability and reporting requirements for hours of work in excess of temporary and incidental as defined in this act.

Requires, by December 1, 2011, the department to report to the workers' compensation advisory committee on the effect of this act and the rules developed under this act have on the revenue and costs to the state fund.