American Petroleum Institute (API). Safe Welding, Cutting and Hot Work Practices in the Petroleum and Petrochemical Industries, Recommended Practice (RP) 2009, Washington, DC, 2002.
National Fire Protection Association (NFPA). Standard for Fire Prevention During Welding, Cutting and Other Hot Work, NFPA 51B, 2009.
NFPA. Standard for the Safeguarding of Tanks and Containers for Entry, Cleaning, or Repair, NFPA 326, 2005.
Occupational Safety and Health Administration (OSHA). General Requirements for Welding, Cutting, and Brazing, 29 CFR 1910.252.
API RP 2009, Safe Welding, Cutting, and Hot Work Practices in the Petroleum and Petro-chemical Industries.
American Welding Society Fact Sheets (#’s 6, 28, 31, 34, 36, 37, 38, 40, 41).
ANSI Z49.1:2012: Safety in Welding, Cutting, and Allied Processes.
General Guidance on Permit to Work (including Hot Work)