(1) Prevailing wage rates for all public work contracts will be determined by the industrial statistician and published on the first business day of February and the first business day of August of each year. These rates shall become effective thirty days after the date of publication. However, the industrial statistician may revise an established prevailing wage rate in response to an administrative or judicial finding overturning the established rate, or at any time necessary to correct an error, with such revision becoming effective thirty days after the date of publication. However, in the event of an emergency as determined by the director of the department, such revised rate shall take effect upon publication.

(2) The department shall establish deadlines for the submission of:

(a) Completed wage surveys, for inclusion of submitted data in the survey computations;

(b) Newly ratified collective bargaining agreements for inclusion in the semiannual prevailing wage publication;

(c) Notice of collectively bargained wage and benefit adjustments, and/or relevant contractual changes, for inclusion in the semiannual prevailing wage publication; and

(d) Notice of changes in apprenticeship standards and incremental wage rates for inclusion in the semiannual prevailing wage publication.

(3) The applicable prevailing wage rates for a given public works contract will be determined as follows:

(a) For all public works contracts, except janitorial or building service maintenance contracts, the applicable prevailing wage rates shall be the rates that are in effect on the date when bids by prime contractors are due for submission to contract awarding agencies. These rates shall remain in effect for the duration of the contract.

(b) If contracts are not awarded within six months of the date bids are due, the applicable prevailing wage rates shall be those that are in effect on the date the contract is awarded. These rates shall remain in effect for the duration of the contract.

(c) For work orders issued under job order contracts pursuant to chapter 39.10 RCW, the appropriate prevailing wage rates shall be the rates that are in effect on the date when the individual work order is issued.

(4) If a contract for public work is not awarded pursuant to bids, the applicable prevailing wage rates shall be those that are in effect on the date when the contract is executed. These rates shall remain in effect for the duration of the contract.

(5) A schedule of the applicable prevailing wage rates must be included by:

(a) Contract awarding agencies, in the bid specifications and contract documents for each contract.

(b) Contractors, in the bid and/or contract documents provided to subcontractors.