Contributors. INTRODUCTORY INFORMATION. Three Little Words. What is This Thing Called Noise? Basic Principles of Sound Measurement. Determination of Noise Exposure. The Development of Federal Standards and Damage Risk Criteria. Client Communication. COMPONENTS OF AN EFFECTIVE HEARING CONSERVATION PROGRAM. Principles of Noise Control. Hearing Testing and Interpretation. Management of Hearing Conservation Data with Microcomputers. Hearing Protectors - Specifications, Fitting, Use, and Performance. The Employee education Program. The Comprehensive Hearing Conservation Program. RELATED HEARING CONSERVATION ACTIVITIES. Hearing Conservation in an Educational Setting. Occupations: Hearing Conservation in the Military. Community Noise Assessment. THE BUSINESS OF HEARING CONSERVATION. Managing a Hearing Conservation Service. Equipping a Hearing Conservation Program. Shaping Managerial Attitudes for hearing Conservation. EPILOGUE. Appendix A; Department of Labor Occupational Noise Exposure Standard. Appendix B: Walsh-Healey Noise Standard. Author Index. Subject Index.