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Chapter 35 — WELDING AND OTHER HOT WORK

Section 3510

California Fire Code (Title 24, Part 9) · 2019 edition · updated 2026-09-10 · California

CBSC: official editions, supplements and errata

Italicized text is a California amendment to the model code, as printed in the official publication.

HOT WORK ON FLAMMABLE AND COMBUSTIBLE LIQUID STORAGE TANKS

3510.1 General.

Hot work performed on the interior or exterior of tanks that hold or have held flammable or combustible liquids shall be in accordance with Section 3510.2 and Chapters 4, 5, 6, 7 and 10 of NFPA 326.

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3510.2 Prevention. The following steps shall be taken to

minimize hazards where hot work must be performed on a flammable or combustible liquid storage container:

  1. Use alternative methods to avoid hot work where possible.

  2. Analyze the hazards prior to performing hot work, identify the potential hazards and the methods of hazard control.

  3. Hot work shall conform to the requirements of the code or standard to which the container was originally fabricated.

  4. Test the immediate and surrounding work area with a combustible gas detector and provide for a means of continuing monitoring while conducting the hot work.

  5. Qualified employees and contractors performing hot work shall use an industry-approved hot work permit system to control the work.

  6. Personnel shall be properly trained on hot work policies and procedures regarding equipment, safety, hazard controls and job-specific requirements.

  7. On-site safety supervision shall be present where hot work is in progress to protect the personnel conducting the hot work and provide additional overview of sitespecific hazards.

472 2019 CALIFORNIA FIRE CODE

Copyright © 2019 ICC. ALL RIGHTS RESERVED. Accessed by Kevin Day (kevin.day@dgs.ca.gov), (California Building Standards Commission) Order Number #100735044 on Jul 24, 2019 03:54 PM (PDT) pursuant to License Agreement with ICC. No further reproduction or distribution authorized. Single user only, copying and networking prohibited. ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.

100735044

CALIFORNIA FIRE CODE – MATRIX ADOPTION TABLE

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▸Contents — California Fire Code (Title 24, Part 9)
California Fire Code (Title 24, Part 9)

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