UN Regulation No. 78: Motorcycle and Moped Braking

Uniform Provisions Concerning the Approval of Vehicles of Categories L1, L2, L3, L4, and L5 with regard to Braking

Related groups: GRRF and GRVA
UN R78 | Revision 1 (2007)
20 Jul 2007 2011-01-28 11:26:13 UTC 1 03 series of amendments 02 series of amendments | Supplement 3 02 series of amendments | Supplement 2 02 series of amendments | Supplement 1 02 series of amendments 01 series of amendments | Corrigendum 1 01 series of amendments
UN R78 | Revision 1 | Amendment 1 (2009)
16 Apr 2009 2011-01-28 11:38:27 UTC 1 1 03 series of amendments | Supplement 1
UN R78 | Revision 1 | Amendment 2 (2015)
9 Nov 2015 2015-11-26 16:57:55 UTC 1 2 03 series of amendments | Supplement 2 Based upon the adopted proposal: WP.29/2015/9

Proposal as approved by the GRRF to clarify provisions on the use of Combined Braking Systems (CBS) and make some additional editorial improvements.

UN R78 | Revision 1 | Amendment 3 (2017)
22 Feb 2017 2017-05-31 17:21:18 UTC 1 3 03 series of amendments | Supplement 3 Based upon the adopted proposals: WP.29/2016/56

Proposal to include three-wheeled category L vehicles within the scope of ABS testing, to align UN R78 with the provisions for anti-lock braking systems used in other regulations, including specific exemptions for certain off-road vehicles as incorporated in UN Regulation No. 13, and to allow for Emergency Stop Signal (ESS) systems on motorcycles and related vehicles. The proposal also clarifies the limits on the use of any temporary ABS deactivation switch and prohibition against permanent disabling of ABS if fitted on a motorcycle.

WP.29-169-03
UN R78 | Revision 1 | Amendment 4 (2017)
26 Jul 2017 2017-09-08 11:11:13 UTC 1 4 04 series of amendments Based upon the adopted proposals: WP.29/2016/114

Proposal to align the text with the provisions for anti-lock braking systems used in other regulations, including specific exemptions for certain off-road vehicles as incorporated in UN Regulation No. 13. The proposal clarifies the limits on the use of any temporary ABS deactivation switch and prohibition against permanent disabling of ABS if fitted on a motorcycle.

WP.29-170-06

Proposal from GRRF to correct document WP.29/2016/114 (proposal to align UN R78 with other braking regulations as regards anti-lock braking systems and to clarify the limits on the use of any temporary ABS deactivation switch and prohibition against permanent disabling of ABS if fitted on a motorcycle. Under (e), the correct reference to the paragraph GTR No. 3 should read 5.1.13. The correct reference under f) to the previous points should be (a) to (e) instead of (a) to (f).

UN R78 | Revision 1 | Corrigendum 1 (2008)
11 Jan 2008 2011-01-28 11:39:17 UTC 1 1
UN R78 | Revision 1 | Corrigendum 2 (2008)
24 Jun 2008 2011-01-28 11:40:13 UTC 1 2 03 series of amendments | Corrigendum 1
UN R78 | Revision 1 | Corrigendum 3 (2010)
27 Oct 2010 2011-01-28 11:41:17 UTC 1 3 03 series of amendments | Corrigendum 2
Earlier texts may be available through the UN Official Document System.