Section 21.39.045 - Workers' compensation rate filings(a) Notwithstanding any other provision of this chapter, a rate filing for workers' compensation insurance that classifies a risk in the construction industry may not contain or impose a higher premium rate if the risk upon which the higher rate filing is based consists only of a higher wage rate paid by the employer.(b) The director shall accept a rate filing for workers' compensation insurance if the filing includes a reasonable method of recognizing differences in rates of pay for the construction industry, and the method uses a credit scale that begins at an amount equal to the average weekly wage in this state for the construction industry as determined by the Department of Labor and Workforce Development.