Wash. Admin. Code § 204-10-090 - Equipment prohibited
If aftermarket equipment is installed on a vehicle, it must not impair the effectiveness of equipment required by 49 Code of Federal Regulations (C.F.R.) Part 571, chapter 46.37 RCW or Title 204 WAC.
Notes
Statutory Authority: RCW 46.37.005 and 46.37.320. 08-19-079, § 204-10-090, filed 9/16/08, effective 10/17/08; 98-04-053, § 204-10-090, filed 1/30/98, effective 3/2/98. Statutory Authority: RCW 46.37.005, 46.37.194, 46.37.280, 46.37.310, 46.37.320 and 46.37.380. 81-18-008 (Order 81-08-02), § 204-10-090, filed 8/21/81.
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