Free NFPA 704 Diamond Generator & Label Maker
Make and print a free NFPA 704 label — the iconic four-color hazard diamond — for chemical storage tanks, drums, and facility entrances. Pick your ratings, choose a size, and download a print-ready PDF. No account required.
0 — No hazard beyond ordinary materials
0 — Will not burn under typical fire conditions
0 — Stable; not reactive even under fire conditions
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NFPA 704 — Verify ratings against SDS Section 2 / NFPA standard before posting.
Vector PDF, crisp at any size. Output is the diamond only (standard NFPA placard); product name and disclaimer shown above are for your reference.
⚠ Important — Read before you print
- This tool is provided as a utility only, on an "as is" basis, with no warranty of accuracy, completeness, or fitness for any particular purpose.
- It is not legal, regulatory, or EHS advice. You are solely responsible for verifying that any label you generate is accurate and complete for your specific product and use.
- You must ensure compliance with OSHA HCS 2024 (29 CFR 1910.1200) and any other applicable federal, state, local, or international regulations (e.g. DOT, EPA, GHS Rev.10).
- Always cross-check generated content against the manufacturer's current Safety Data Sheet (SDS).
- Tellus EHS, Inc. and its affiliates are not liable for any damages, injuries, fines, or losses arising from use of this tool or any label generated by it.
See the full Free Tool Terms & Disclaimer.
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Get Started Free — no credit card requiredWhat is an NFPA 704 label?
An NFPA 704 label — often called the “fire diamond” — is the four-color hazard diamond defined by the National Fire Protection Association standard NFPA 704, “Standard System for the Identification of the Hazards of Materials for Emergency Response.” It tells firefighters and other emergency responders what they are walking into before they enter. The diamond has four quadrants: blue (health), red (flammability), yellow (reactivity), each rated 0–4, and a white quadrant for special hazards such as W (reacts with water), OX (oxidizer), or SA (simple asphyxiant). Many state and local fire codes adopt NFPA 704 by reference, making the label mandatory on stationary tanks, drum storage, and building entrances. This free tool lets you make and print a compliant NFPA 704 label in seconds. To understand what every number and symbol means, read NFPA 704 Diamond Explained.
How to print NFPA 704 labels
Printing an NFPA label with this free generator takes under a minute. For a deeper guide to label stock, sizes, and placement, see How to Print NFPA 704 Labels for Chemical Storage.
- 1
Enter the hazard ratings
Set the health (blue), flammability (red), and reactivity (yellow) ratings 0–4 from your Safety Data Sheet or the NFPA reference, and pick a special hazard symbol (W, OX, SA, etc.) if one applies.
- 2
Choose the diamond size
Pick 4″ for drums and containers, 8″ for rooms and walls, or 12″ for large exterior signage. Match the size to the distance an emergency responder needs to read it from.
- 3
Download the print-ready PDF
Download a 300 DPI PDF sized to the exact diamond dimensions so it prints at true physical scale — no account required.
- 4
Print on durable label stock
Print on weatherproof vinyl or polyester label stock for outdoor tanks and drums, or on plain paper for indoor placards. Laminate outdoor labels to resist UV, moisture, and chemical splash.
NFPA label — frequently asked questions
How do I print an NFPA 704 label?+
Enter the health, flammability, and reactivity ratings (0–4) plus any special hazard symbol, choose a diamond size (4″, 8″, or 12″), and download the print-ready PDF. The PDF page matches the exact diamond dimensions so it prints at true physical scale on any printer. For outdoor tanks and drums, print on weatherproof vinyl or polyester label stock and laminate; for indoor placards, plain paper or cardstock is fine.
What is an NFPA 704 diamond?+
NFPA 704 is the National Fire Protection Association standard system for identifying the hazards of materials for emergency response. The diamond shows four colored quadrants — blue (health), red (flammability), yellow (reactivity), and white (special hazards) — each with a 0–4 rating where higher is more hazardous.
What size NFPA label do I need?+
Match the diamond size to the farthest distance a responder might need to read it from: roughly 3–4″ for up to 40 ft, 6–8″ for 40–85 ft, and 9–12″ or larger for longer distances and exterior signage. This tool offers 4″ (drum/container), 8″ (room/wall), and 12″ (large signage) presets. Your local fire code or AHJ may specify a minimum size.
What material should NFPA labels be printed on?+
For outdoor storage tanks, drums, and building exteriors, print on weatherproof self-adhesive vinyl or polyester label stock and laminate the result to resist UV fading, rain, and chemical splash. For indoor rooms, cabinets, and placards, standard paper or cardstock in a sign holder works. The colors must stay accurate — blue, red, yellow, and white are part of the standard.
Is NFPA 704 the same as the OSHA GHS label?+
No. NFPA 704 is for emergency responders (fire/police arriving at a scene); GHS / OSHA HazCom labels are for workers handling the chemical. They communicate different information for different audiences. Many facilities post both — NFPA on stationary tanks and at building entrances, GHS on individual containers.
Where do I post NFPA 704 diamonds?+
Most commonly: stationary chemical storage tanks, drum storage areas, building entrances where hazardous materials are present, individual rooms storing significant quantities, and facility exterior signage for fire department reference. Local fire codes determine specific requirements — check with your authority having jurisdiction (AHJ).
What do the special hazard symbols mean?+
The white quadrant uses symbols: W (with a slash through it) means reacts with water; OX means oxidizer; SA means simple asphyxiant. Other locally-used symbols include ACID, ALK (alkali), COR (corrosive), BIO (biohazard), POI (poison), and the radiation trefoil.
Is this NFPA label maker free?+
Yes. Generate, download, and print as many NFPA 704 labels as you need with no account, no payment, and no usage limits.