• OSHA Occupational Chemical Database
• National Institute for Occupational Safety & Health
  • NIOSH Immediately Dangerous To Life or Health Concentrations
  • International Chemical Safety Cards
  • NIOSH Certified Equipment List
  • NIOSH Manual of Analytical Methods
  • NIOSH Pocket Guide to Chemical Hazards
  • Specific Medical Tests Published in the Literature for OSHA Regulated Substances
  • NIOSH Occupational Health
  • Guidelines for Chemical Hazards
  • Registry of Toxic Effects of Chemical Substances (RTECS)
  • NIOSH Recommendations for Chemical Protective Clothing
  • OSHA 1988 PELs
• National Library of Medicine Toxicology and Environmental Health - TOXNET
• Agency for Toxic Substances and Disease Registry
  • Toxic Substances and Toxic Substances Portal
  • Toxicological Profile Information Sheet
  • ToxFAQs™
  • Hazardous Substance Release and Health Effects Database
• DOT Emergency Response Guidebook (ERG) 
• ACS Chemical Safety Publications
  • Safety in Academic Chemistry Laboratories, Eighth Edition
  • Identifying and Evaluating Hazards in Research Laboratories (for lab researchers/workers)