A compilation of NIOSH documents that contain recommendations for safety and health standards in the workplace was provided. Section- A listed all NIOSH documents containing recommendations for chemical, physical, and other hazards in the workplace. Section-B contained the NIOSH recommended exposure limits (RELs) for all the hazards mentioned as well as associated health effects. Section-A included NIOSH publications and written testimony from NIOSH on rules proposed by regulatory agencies such as OSHA, the Mine Safety and Health Administration, or the United States Environmental Protection Agency as well as testimony provided by NIOSH at regulatory hearings by OSHA or MSHA. Documents were in the form of Criteria Documents, Current Intelligence Bulletins, Alerts, Special Hazard Reviews, Occupational Hazard Assessments, Miscellaneous Statements and Reports, and Responses to Regulatory Agencies. Section-B contained three tables listing hazardous chemicals, physical hazards, and the particular industry, process or work environment. Five appendices dealt with classes of chemicals and chemicals for which RELs were and were not adopted by NIOSH and chemicals for which NIOSH revised existing RELs. Pesticides were categorized into three levels of toxicity based on the 1978 NIOSH criteria.