Researchers have reported public school band directors as experiencing noise-induced hearing loss. Little research has focused on collegiate band directors and university student musicians. The present study measures the sound pressure levels generated within a university concert band and compares sound levels with the criteria set by the Occupational Safety and Health Administration (OSHA) and the National Institute for Occupational Safety and Health (NIOSH). Additionally, the immediate effects of sound exposure are described by temporary threshold shifts (TTS), collected from pre- and post-rehearsal hearing screenings. Time-weighted averages were computed from the sound pressure levels and compared to the permissible noise limits established by OSHA and NIOSH. None of the time-weighted averages exceeded the permissible noise limits; however, there were 139 temporary TTSs (greater than 10 dBA) measured from pre- to post-rehearsal. Presumably, university concert band musicians are exposed to sound levels that, over time, may lead to noise-induced hearing loss. (Contains 1 figure and 2 tables.)