1. (1) You must conduct audits at least quarterly to provide a representative assessment of your workplace.

   1. (a) The assessment is representative if it:

      1. (i) Covers all processes and work activities in your business at full production levels; and
      2. (ii) Covers all employees present on the audit day.
   2. (b) If your business is mobile or involves variable processes, auditing may need to be repeated more often than quarterly.

   3. (c) Auditing does not need to be repeated more than monthly as long as a reasonable effort is made to cover:

      1. (i) The activities with greatest exposure; and
      2. (ii) As many employees as possible.
2. (2) You must assess exposures and hearing protection for the full shift for each employee covered at the time of the audit.

[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050. WSR 15-23-086, § 296-817-50005, filed 11/17/15, effective 12/18/15. Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 03-11-060, § 296-817-50005, filed 5/19/03, effective 8/1/03.]