Cargo tank construction rule goes into effect October 1

Apr 21, 2003 12:00 PM

A new federal hazmat regulation affecting the construction and maintenance of cargo tank motor vehicles goes into effect October 1, 2003, according to a final rule published April 18 in the "Federal Register." The Research and Special Programs Administration (RSPA) is updating and clarifying regulations contained in 49 CFR Parts 107, 171, 172, 173, 177, 178, and 180. Voluntary compliance is authorized 30 days after the publication date.

Revisions applicable to DOT 400-series include structural integrity requirements, manhole marking, road clearance, maximum allowable working pressure (MAWP), leak testing using Environmental Protection Agency (EPA) Method 27, and weld joints on DOT407 cargo tanks.

Other revisions include those applicable to MC331 and MC338 cargo tanks, such as remote shutoffs, MC331 inlet and outlet fittings, visual inspections for insulated vessels, and leakage tests for tanks hauling anhydrous ammonia.

For more information, contact Michael Johnsen at 202-366-6121, Philip Olson at 202-366-4504, Susan Gorsky at 202-366-8553; or Danny Shelton at 202-366-6121.

To see the rule in its entirety, click here for the "Federal Register."