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DOT - 49 CFR 571 121

Standard No. 121; Air brake systems

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Organization: DOT
Publication Date: 1 October 2018
Status: active
Page Count: 23
scope:

This standard establishes performance and equipment requirements for braking systems on vehicles equipped with air brake systems.

Purpose. The purpose of this standard is to insure safe braking performance under normal and emergency conditions

Document History

49 CFR 571 121
October 1, 2018
Standard No. 121; Air brake systems
This standard establishes performance and equipment requirements for braking systems on vehicles equipped with air brake systems. Purpose. The purpose of this standard is to insure safe braking...
October 1, 2017
Standard No. 121; Air brake systems
This standard establishes performance and equipment requirements for braking systems on vehicles equipped with air brake systems. Purpose. The purpose of this standard is to insure safe braking...
October 1, 2016
Standard No. 121; Air brake systems
This standard establishes performance and equipment requirements for braking systems on vehicles equipped with air brake systems. Purpose. The purpose of this standard is to insure safe braking...
October 1, 2015
Standard No. 121; Air brake systems
This standard establishes performance and equipment requirements for braking systems on vehicles equipped with air brake systems. Purpose. The purpose of this standard is to insure safe braking...
October 1, 2014
Standard No. 121; Air brake systems
This standard establishes performance and equipment requirements for braking systems on vehicles equipped with air brake systems. Purpose. The purpose of this standard is to insure safe braking...
October 1, 2013
Standard No. 121; Air brake systems
This standard establishes performance and equipment requirements for braking systems on vehicles equipped with air brake systems. Purpose. The purpose of this standard is to insure safe braking...
October 1, 2012
Standard No. 121; Air brake systems
This standard establishes performance and equipment requirements for braking systems on vehicles equipped with air brake systems. Purrpose. The purpose of this standard is to insure safe braking...
October 1, 2011
Standard No. 121; Air brake systems
This standard establishes performance and equipment requirements for braking systems on vehicles equipped with air brake systems. Purpose. The purpose of this standard is to insure safe braking...
October 1, 2010
Standard No. 121; Air brake systems
This standard establishes performance and equipment requirements for braking systems on vehicles equipped with air brake systems. Purpose. The purpose of this standard is to insure safe braking...
October 1, 2009
Standard No. 121; Air brake systems.
This standard establishes performance and equipment requirements for braking systems on vehicles equipped with air brake systems. Purpose. The purpose of this standard is to insure safe braking...

References

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