20 CFR § 655.150 - Interstate clearance of job order.
(a) SWA posts in interstate clearance system. The SWA must promptly place the job order in interstate clearance to all States designated by the CO. At a minimum, the CO will instruct the SWA to transmit a copy of its active job order to all States listed in the job order as anticipated worksites covering the area of intended employment.
(b) Duration of posting. Each of the SWAs to which the job order was transmitted must keep the job order on its active file until 50 percent of the contract term has elapsed, and must refer each qualified U.S. worker who applies (or on whose behalf an application is made) for the job opportunity.