Wash. Rev. Code § 39.04.370
(1) For any public work estimated to cost over one million dollars, the contract must contain a provision requiring the submission of certain information about off-site, prefabricated, nonstandard, project specific items produced under the terms of the contract and produced outside Washington. The information must be submitted to the department of labor and industries under subsection (2) of this section. The information that must be provided is:
(2)
(3) For the purposes of this section, "off-site, prefabricated, nonstandard, project specific items" means products or items that are:
[ 2015 c 225 s 38; 2010 c 276 s 1.]