Employees are required to follow safe procedures and to protect themselves and fellow workers from accidents. Good housekeeping is the first principle of accident prevention and shall be the concern of everyone on the job. Personal protective equipment must be used as required without exception. When clearing land with heavy equipment, fire prevention and fire protection are of utmost importance. Accidents involving falls and back injury also require special attention. Lock out and tag out procedures will be followed without fail. Safety procedures for maintenance, excavation, trenching, and chemical use are well documented and will be followed.