Wash. Admin. Code § 296-52-67070
(1) Packaging materials. Empty boxes, paper, and fiber packing materials that have previously contained explosive materials must be:
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 17-16-132, § 296-52-67070, filed 8/1/17, effective 9/1/17. Statutory Authority: RCW 49.17.010, [49.17].040, and [49.17].050. WSR 02-03-125, § 296-52-67070, filed 1/23/02, effective 3/1/02.]