Rule 22 - HEARING IMPAIRMENTA. The "Guides to the Evaluation of Permanent Impairment" of the American Medical Association, or any alternative method approved pursuant to 85 O.S., Section 333(C) that deviates from or is used in place of or in combination with the Guides, in effect on the date of injury, shall be used to evaluate permanent impairment caused by hearing loss where the last exposure occurred on or after August 26, 2011. Objective medical evidence necessary to prove physical or anatomical impairment in occupational hearing loss cases shall be established by medically recognized and accepted clinical diagnostic methodologies, including, but not limited to, audiological tests that measure air and bone conduction thresholds and speech discrimination ability.B. Hearing loss in only one ear shall be rated under the AMA Guides as a monaural hearing loss. Hearing loss in both ears shall be rated under the AMA Guides as a binaural hearing loss and shall not be converted to a whole person rating.Okla. Stat. tit. 85, § 22
Adopted by order of the Supreme Court, 1997 OK 130 , eff. 11/1/1997; Amended by order of the Supreme Court, 2000 OK 13 , eff. 4/15/2000; Amended by order of the Supreme Court, 2002 OK 6, eff. 3/1/2002; Renumbered from former Rule 32 by order of the Supreme Court, 2006 OK 6 , eff. 1/30/2006. Amended by order of the Supreme Court, 2012 OK 19, eff. 3/6/2012.