49 C.F.R. § 172.322
(e)
MARINE POLLUTANT mark. The MARINE POLLUTANT mark must conform to the following:
(1)
Except for size, the MARINE POLLUTANT mark must appear as follows:
(2)
The marking must be in the form of a square-on-point. The symbol and border must be black on a white or suitable contrasting background. The width of the border forming the square-on-point marking must be at least 2 mm. Each side of the mark must be—
(i)
At least 100 mm (3.9 inches) as measured from the outside of the lines forming the border for marks applied to:
(A)
Non-bulk packages, except in the case of packages which, because of their size, can only bear smaller marks. If the size of the package so requires, the dimensions/line thickness may be reduced, provided the marking remains clearly visible. Where dimensions are not specified, all features shall be in approximate proportion to those shown.
(B)
Bulk packages with a capacity of less than 3,785 L (1,000 gallons); or
(ii)
At least 250 mm (9.8 inches) for marks applied to all other bulk packages.
(3)
Transitional exception. A marking in conformance with the requirements of this paragraph in effect on December 31, 2014, may continue to be used until December 31, 2016.
(4)
For domestic transportation, a packaging marked prior to January 1, 2017 and in conformance with the requirements of this paragraph in effect on December 31, 2014, may continue in service until the end of its useful life.
Notes, amendments, and revision history
Amendments
[Amdt. 172-127, 57 FR 52938, Nov. 5, 1992, as amended by Amdt. 172-136, 59 FR 38064, July 26, 1994; Amdt. 172-145, 60 FR 49110, Sept. 21, 1995; 66 FR 45379, Aug. 28, 2001; 70 FR 56098, Sept. 23, 2005; 74 FR 2252, Jan. 14, 2009; 76 FR 3367, Jan. 19, 2011; 80 FR 1150, Jan. 8, 2015; 85 FR 83380, Dec. 21, 2020; 87 FR 44990, July 26, 2022]
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. 172-127, 57 FR 52938, Nov. 5, 1992, as amended by Amdt. 172-136, 59 FR 38064, July 26, 1994; Amdt. 172-145, 60 FR 49110, Sept. 21, 1995; 66 FR 45379, Aug. 28, 2001; 70 FR 56098, Sept. 23, 2005; 74 FR 2252, Jan. 14, 2009; 76 FR 3367, Jan. 19, 2011; 80 FR 1150, Jan. 8, 2015; 85 FR 83380, Dec. 21, 2020; 87 FR 44990, July 26, 2022]