Profile Picture
Jeremy Harman CHST, CSP
Sep 25, 2025
258

Propane storage area labeling requirements

I have a new propane storage area That was not labeled. I want to make sure I get this right. I am in California. I know these following requirements. My plan is to place the no smoking signage on the outside of each of the walls and gate. I also plane to put the Propane label and NFPA diamond on each end of the tank. along with the words "Flammable gas" to meet the OSHA and NFPA requirement. I have an edited picture below of my plan.

Am I missing anything? any suggestions? Each tank is 2000 gallons and the piping the the back has very small labels (16pt) that say LPG or HPG which I plan to make larger.

Title 8.489
• (a) The word “FLAMMABLE” on each side that is readily visible. The letters of this sign shall be in standard-type letters and shall have a height of at least 1/12 of the diameter of the container, 4 inches for containers exceeding 500 gallons capacity.
• (b) Warning signs with the words “NO SMOKING, OPEN FLAMES OR OTHER SOURCE OF IGNITION PERMITTED WITHIN 50 FEET” shall be applied in letters at least 1 1/2 inches high, in sharply contrasting colors, on each stationary container or on a sign posted adjacent to the container.
• (c) When 2 or more containers are installed in battery, the requirement of Sections 489 (a) and (b) will be considered as being complied with when the required warning signs are prominently displayed on all 4 sides of such battery of containers.
OSHA 29 CFR 1910
• 1910.253(b)(1)(ii)
Compressed gas cylinders shall be legibly marked, for the purpose of identifying the gas content, with either the chemical or the trade name of the gas. Such marking shall be by means of stenciling, stamping, or labeling, and shall not be readily removable. Whenever practical, the marking shall be located on the shoulder of the cylinder.
• NFPA 704 Diamond: This standard hazard placard provides a visual summary of risks. For propane, the rating is typically 2-4-0:
o Blue (Health): 2 (indicating a moderate health hazard from exposure).
o Red (Flammability): 4 (indicating extreme flammability).
o Yellow (Reactivity): 0 (indicating it is stable under normal conditions).
o White (Special Hazards): No additional symbol for standard propane.

Post image
Share

Comments (8)