NIOSH has been developing, implementing, and evaluating a model hearing conservation program specifically designed to meet the needs of construction workers. The study partners have primarily included carpenters and millwrights. Program elements include effective delivery of yearly audiometry, several different approaches to education and training, noise measurement and TBEAM analysis, and behavioral observation of workers and worksites before and after implementation of the program. In this part of our presentation on "hearing conservation in the construction industry," Carol will present results of this study to date. Lessons learned - including mistakes made along the way - will be discussed. Recommendations will be presented for implementing similar programs throughout the construction industry. Study materials and training products will be displayed and discussed. The University of Washington (UW) has been assessing noise exposure levels, hearing loss, and hearing protection use among construction workers in Washington for more than five years. Workers from eleven different trades have been examined as part of this research. In this part of our presentation on "hearing conservation in the construction industry," Rick will discuss some of the noise exposures measured for the various trades, tasks, and tools that have been evaluated by UW, as well as self-reported use of hearing protection among the construction workers who have participated in the research. In addition, newly developed hearing conservation outreach materials designed by UW for use by both safety and health professionals and workers in the construction industry will be presented. Recent research on hearing protection performance and cross-shift changes in hearing levels of construction workers will also be discussed.