(a) The facility shall include either:
- (1) A sound room of appropriate size that meets or exceeds ANSI standards of ambient noise levels for test environments; or
- (2) Instruments for the measurement of hearing aid performance on the ear of the patient.
- (b) Equipment shall also include instruments for the electroacoustic measurement of hearing aid characteristics.
- (c) All equipment shall be calibrated and maintained annually.
Codification Notes: “ANSI” means American National Standards Institute.