Listing of Sub-tier Subcontractors Not Required

RCW 39.30.060 is the Washington State law that requires the listing of subcontractors (or the prime contractor) who will be performing the work of HVAC, plumbing, and electrical on public works projects. These firms must be named either with the bid or within one hour of the bid submittal deadline.

The law does not, however, extend to the listing of sub-tier subcontractors. RCW 39.30.060 states that the bidder must list "the names of the subcontractors with whom the bidder, if awarded the contract, will subcontract for the performance of the work" of the three trades noted above.

Because the bidder (or prime contractor) does not subcontract work to sub-tier subcontractors but only to direct subcontractors, these lower tier subcontractors are not covered by the law, and they do not need to be listed.