This pamphlet describes the information services provided by the National Institute for Occupational Safety and Health (NIOSH) via their toll free number, (800 356-4674). This service combines recorded and fax information with direct access to NIOSH technical information staff and the NIOSH publications office. The automated system operates 24 hours per day, 7 days per week and provides voice or fax information on a variety of occupational safety and health topics. Callers may also speak directly with a technical information specialist or publications representative from 9:00 a.m. until 4:00 p.m. EST., Monday through Friday.