Hearing Conservation The Mine Safety and Health Administration and the Occupational Safety and Health Administration both require employers who expose workers to noise above certain levels to develop and implement comprehensive hearing conservation programs. If you are uncertain as to your need or level of compliance you should contact us today. We can conduct sound level and worker noise exposure surveys to assure you and your workers are protected. Are we compliant? Hearing Conservation Services PST offers custom developed hearing conservation plans, sound level surveys, employee noise dose surveys, on site audiograms and much more. All services provided by Council for Accreditation in Occupational Hearing Conservation (CAHOC), Certified Occupational Hearing Conservationist (COHC). Audiograms Our staff of Occupational Hearing Conservationists are certified by the Council for Accreditation in Occupational Hearing Conservation ( CAOHC ) and surpervised by medical professionals. We can provide on site, fully compliant, audiograms to you and your employees. Our commitment is unsurpassed and satisfaction is assured. To contact us and schedule your audiograms click this link. Schedule Audiograms.    Eardrum, malleus Seperating the middle and inner ear from the outer ear, the eardrum is delicate in and of itself.  Noise does its' damage where you can't see...the inner ear.  Sensoryneural hearing loss (damage to the nerve cells and caused by repeated exposure to high noise levels), is not reverseable.  This type of hearing loss is what hearing conservation aims to prevent.