Curtails the operations of illegal businesses in the construction industry.

Requires a business that applies for a contractor registration under chapter 18.27 RCW to have a state industrial insurance account, a state unemployment insurance account, and a state business tax account.

Encourages an owner, officer, or partner of a contractor registration applicant to complete a preregistration contractor training class.

Charges an additional contractor registration fee for an applicant that has not completed the preregistration training class.

Requires the department of labor and industries to provide preregistration training in each of its service regions at least once each month.

Requires the department of revenue and the employment security department to assist the department of labor and industries in presenting the contractor preregistration training program.