(3) The following shall be exempt from the provisions of WAC
173-60-040, except insofar as such provisions relate to the reception of noise within Class A EDNAs between the hours of 10:00 p.m. and 7:00 a.m.
(a) Sounds originating from temporary construction sites as a result of construction activity.
(b) Sounds originating from forest harvesting and silvicultural activity.