Environmental Health and Safety

Hot Work

I. OVERVIEW AND OBJECTIVES

These procedures including the hot work permit process are established to assist in preventing accidental ignition of combustible and flammable materials and injury from exposure to sparks, heat, and flames. Hot work permit procedures apply to activities that result in the release of sparks, flames, molten slag, or hot material, which has the potential to cause fires or explosions. A hot work permit (Attachment A) is required in non-designated areas for the following operations capable of providing an ignition source, including but not limited to:

• Welding
• Torch work
• Soldering
• Metal cutting and brazing
• Molten liquid, liquid metal, and smelting processes
• Open flame processes
• Use of spark producing devices
• Work on portable and mobile containers which contained flammable or combustible materials

This program defines responsibilities and is intended to be a guide for persons involved in hot work operations. Designated hot work areas specifically designed for this purpose are exempt from the hot work permit process. Hot work permits can be obtained from Physical Plant and Environmental Health and Safety.

The objectives of this program include:

• Prevent ignition of combustible and flammable materials.
• Ensure the work area is checked.
• Isolate combustible and flammable materials from the hot work.
• Document hazardous conditions and special requirements for the work area.
• Provide communication with all affected departments.
• Control how open flame or spark-producing equipment is used.
• Establish fire watches when applicable to the work being performed.