There are some insufficiencies in the Hearing Conservation Program that are exponentially exacerbated by lack of the standard and observation for this program and little interest in team work activities. Regarding the noise measurement instruments, limitation in the measurement lack of the equipments and also incomplete evaluation are clearly detected.The performed investigations have demonstrated that most of the industrial centers have no baseline auditory curve and sometimes do not intend in hearing screening evaluations. that is mainly because of the need for sound protected environment and calibrated instruments and also 14 hours of sound rest before the experiment.Her the problems in performing hearing conservation program is discussed in more details.