Examinations as to the extent of hearing impairment should be performed by qualified professionals, board-certified otolaryngologists, otologists or licensed audiologists, using audiometers meeting standards as specified in ANSI S3.6-1969, "Specifications for Audiometers." However, the diagnosis of disease process and the extent of causally related loss of hearing shall be made by a board-certified otolaryngologist or otologist.
(b) The test environment should meet or exceed criteria detailed in ANSI S3.1- 1960, "Criteria for background noise in audiometer rooms". Internal test consistency and professional judgment should determine whether a second or third test battery or other more extensive forms of testing may be necessary. Pure tone audiometry (air conduction and bone conduction), impedance measurements, speech thresholds and speech discrimination measures shall be considered to establish the nature and extent of the hearing impairment.(c) Examinations shall be made after the date of separation from harmful exposure to noise in accordance with the provisions of section 49-bb of the Workers' Compensation Law.N.Y. Comp. Codes R. & Regs. Tit. 12 § 351.7