---
kind: "section"
citation: "49 C.F.R. § 172.544"
title: "49"
number: "172.544"
heading: "COMBUSTIBLE placard."
url: "https://uscodex.org/cfr/49/172.544"
---

# §172.544. COMBUSTIBLE placard.

- (a) Except for size and color, the COMBUSTIBLE placard must be as follows:
- (b) In addition to complying with [§ 172.519](/cfr/49/172.519.md), the background color on the COMBUSTIBLE placard must be red. The symbol, text, class number and inner border must be white. On a COMBUSTIBLE placard with a white bottom as prescribed by [§ 172.332(c)(4)](/cfr/49/172.332.md?p=c-4), the class number must be red or black.
- (c) The words “FUEL OIL” may be used in place of the word “COMBUSTIBLE” on a placard that is displayed on a cargo tank or portable tank being used to transport by highway fuel oil that is not classed as a flammable liquid. The words “FUEL OIL” must be white.

## Notes

### Amendments

[Amdt. 172-123, 56 FR 66262, Dec. 20, 1991]

### Authority

Authority: 49 U.S.C. 5101-5128, 44701; 49 CFR 1.81, 1.96 and 1.97.

### Source

Source: Amdt. 172-29, 41 FR 15996, Apr. 15, 1976, unless otherwise noted.

### Amendments

[Amdt. 172-123, 56 FR 66262, Dec. 20, 1991]