This testimony contains remarks from NIOSH concerning questions raised at a public hearing on logging operations in July of 1990. The first topic addressed is that of seat belts. NIOSH had assembled a bibliography of reports which addresses the issues of seat belt usage, seat belt effectiveness, the injury potential of improperly fastened seat belts, and design parameters for seat belts. The second topic was first aid and cardiopulmonary resuscitation (CPR) training. Two factors in the logging environment are seen as potentially exacerbating the risk of heart attacks and these are heavy physical exertion and exposure to carbon- monoxide (630080). Data are also presented regarding the numbers of cuts and lacerations, amputations, fractures, contusions, concussions, and dislocations occurring in this industry for the years 1985 and 1986. The number of loggers in the United States is estimated to be between 83,000 and 87,000 and the number of compensable injuries to logging workers is estimated to be 16,500 per year. NIOSH recommends all loggers receive basic first aid training. Comments are also offered concerning chain saw guarding and personal protective equipment.