The employer must keep the baseline audiogram without revision, unless a qualified reviewer determines:
(1) The standard threshold shift revealed by the audiogram is persistent;
or
(2) The hearing threshold shown in the annual audiogram indicates significant improvement over the baseline audiogram.
[Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050, and
49.17.060. WSR 20-21-091, § 296-307-63625, filed 10/20/20, effective 11/20/20; WSR 05-01-166, § 296-307-63625, filed 12/21/04, effective 4/2/05.]