Wash. Admin. Code § 352-37-140
The following practices while operating any motor vehicle on or along the ocean beaches are specifically prohibited:
[Statutory Authority: Chapter 79A.05 RCW. WSR 19-04-075, § 352-37-140, filed 2/1/19, effective 3/4/19; WSR 07-03-121, § 352-37-140, filed 1/22/07, effective 2/22/07. Statutory Authority: RCW 43.51.040. WSR 90-07-050, § 352-37-140, filed 3/19/90, effective 4/19/90.]