PDFRCW 79.125.430
Tidelands or shorelands—Preference rights, time limit on exercise.
All preference rights to purchase tidelands or shorelands, when otherwise permitted by RCW 79.125.200 to be purchased, awarded by the department, or by the superior court in case of appeal from the award of the department, shall be exercised by the parties to whom the award is made within thirty days from the date of the service of notice of the award by registered mail, by the payment to the department of the sums required by law to be paid for a contract, or deed, as in the case of the sale of state lands, other than capitol building lands, and upon failure to make the payment the preference rights shall expire.