UC Berkeley Toxic, Corrosive and Pyrophoric (TCP) Gas Program

UC Berkeley has a Toxic, Corrosive and Pyrophoric (TCP) Gas Program that specifies minimum requirements for safe storage, use, and handling of Toxic, Corrosive and Pyrophoric (TCP) gases on campus. The Office of Environment, Health & Safety (EH&S) coordinates this program by performing evaluations of toxic, corrosive and pyrophoric gas usage and offering technical advice on the requirements of the program.

New TCP Gas Users

New potential users of toxic, corrosive or pyrophoric gases must complete a TCP Gas Evaluation Form. This form will be reviewed by EH&S staff.

Purchase Requirements

Prior to the purchase of any toxic, corrosive or pyrophoric gas, one or more of the following requirements may apply as a condition of use:

  • Ventilated gas cabinets or enclosures for toxic, corrosive or pyrophoric gas cylinders
  • Air flow monitors or alarms on ventilated enclosures or gas cabinets
  • Gas monitoring
  • Gas distribution equipment that uses compatible materials and design
  • Critical flow orifices that limit the flow of gas
  • Documented safety procedures and training of lab personnel
  • Release scenario modeling
  • Storage requirements


If you are planning to use gas and are unsure whether it is controlled by the TCP Gas Program, check the program document and contact EH&S at 642-3073 or toxicgas@berkeley.edu.