Thurston County, WA Noise Ordinances: Construction Hours (2026)

The following sounds are exempt from the provisions of this chapter:

A. Sounds created by fire alarms;

B. Sounds created by emergency equipment and emergency work necessary in the interests of law enforcement or of the health, safety or welfare of the community;

C. Sounds created by off-highway vehicles while being used in officially designated off-road vehicle parks;

D. Sounds created by warning devices not operated continuously for more than thirty minutes per incident;

E. Sounds created by yard maintenance equipment utilized for yard maintenance purposes between the hours of seven a.m. and ten p.m.;

F. Sounds created by uses or activities for which required federal, state and/or local governmental approval has been obtained;

G. Sounds originating from residential property relating to temporary projects for the maintenance or repair of homes, grounds and appurtenances between the hours of seven a.m. and ten p.m.;

H. Sounds originating from temporary construction sites as a result of construction activities between the hours of seven a.m. and ten p.m.;

I. Sounds created by the use of a generator during power outages;

J. Sounds from customary agricultural activities;

K. Sounds created by the installation or repair of essential utility services;

L. Sounds from the combined activities of starting, servicing, idling, revving or testing motorized vehicles unrelated to use of the vehicle for the purpose of ingress and