| ANSI | American National Standards Institute 1430 Broadway, New York, NY 10018 Phone: 212-354-3300 |
| CFR | Code of Federal Regulations, usually cited as part of a reference to a regulation, such as 29 CFR 1910.1450(b) meaning subpart 1450(b) of part 1910 of title 29 of the code of federal regulations |
| CHO | Chemical Hygiene Officer |
| CHP | Chemical Hygiene Plan |
| DOT | Department of Transportation |
| EPA | Environmental Protection Agency Hotline Phone: 1-800-424-9346 |
| FR | Federal Register, the "Nation's Newspaper", usually cited as FR 55, 3312 (January 31, 1990), meaning Volume 55 (the volume for the year 1990), page 3312 of the issue dated January 31, 1990. |
| HCS | Hazard Communication Standard, 29 CFR 1910.1200 |
| LS | Laboratory Supervisor |
| MSDS,MSDSs | Material Safety Data Sheet(s) |
| NFPA | National Fire Protection Association Batterymarch Park, Quincy, MA 02269 Phone: 800-343-2201 |
| OSHA | Occupational Safety and Health Administration 200 Constitution Avenue, Washington, DC 20010 Phone: 202-523-6091 |
| PEL | Permissible Exposure Limit |
| PI | Principal Investigator |
| RCRA | Resource Conservation and Recovery Act Phone: 202-475-9361 |
| STL | Supervisor, Teaching Laboratory |
| TIRC | Toxicology Information Resource Center Oak Ridge, TN 37830 Phone: 615- 576-1746 |
| TLV | Threshold Limit Value |
| Z (subpart Z) | That part of the OSHA standards dealing with toxic and hazardous substances, 29 CFR 1910.1000 through 1910.1500 |