- (a) All instruments used to measure thresholds shall be certified to meet American National Standard Specifications for Audiometer, S3.6-1969 or a standard which supersedes it. In addition, some form of live voice or recorded voice testing must be made to obtain at least a subjective evaluation of the individual's ability to discriminate. In the case of live voice testing, the tests should be run without visual cue. A hearing aid of similar characteristics can be refitted to an individual without a hearing test if this is done within six (6) months of the original fitting and original hearing test.
- (b) Hearing testing for the purpose of fitting hearing aids shall not be conducted where ambient noise levels exceed 45 dB measured on a slow weighted dB (a) scale. If the testing environment exceeds 45 dB, the testing shall be considered a Hearing Screening and individuals informed that further testing should be done to determine auditory thresholds for the selection of a hearing aid.
Added at 40 Ok Reg 1554, eff 9-11-23