Cowlitz County, WA Environmental Rules: Vehicle Idling Restrictions (2026)

25 CCC, the county's noise control ordinance adopted by Ordinance 12-150 on November 6, 2012, treats prolonged truck idling as a nighttime public noise disturbance rather than a stand-alone anti-idling law. 030 to include single-family and multi-family housing along with camps, parks, resorts, hospitals and care facilities. 050. 050(A)(16)). 050(A)(3) and (10). A driver parked overnight with an engine running past the 10-minute mark in a rural residential area, and outside an exempted use, is in violation regardless of whether a resident actually files a complaint, since the code defines the conduct itself as a disturbance.