Revision 3 has been prepared purely as documentation tool. The authentic and legally binding texts are WP.29-155-01 and WP.29/2011/108. This document incorporates the following changes:

Proposal adopted and integrated into UN R67 as Revision 3.

Revision 3 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2012/90. This document incorporates the following change:

Proposal as adopted by the Working Party on General Safety Provisions (GRSG) at its 102nd session to update references to international standards and to clarify the provisions on resistance to aging in Regulation No. 67.

Revision 3 | Amendment 2 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2013/11. This document incorporates the following change:

Text adopted by the Working Party on General Safety Provisions (GRSG) at its 103rd session, clarifying the provisions on the aerostatic pressure during the external leakage test of Class 0 components. It is based on document GRSG/2012/17 as amended during that session.

Revision 3 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2013/97. This document incorporates the following change:

Proposal as approved by the GRSG:

1) to enable the approval of an OEM engine control unit on a CNG/LNG vehicle during the vehicle type approval process, eliminating the need for a separate type approval of the ECU, and

2) to clarify provisions concerning hose assemblies.

Revision 4 has been prepared purely as documentation tool. The authentic and legally binding texts are WP.29/2012/90, WP.29/2014/10, WP.29/2013/97, and WP.29/2013/11. This document incorporates the following changes:

Proposal as adopted by the Working Party on General Safety Provisions (GRSG) at its 102nd session to update references to international standards and to clarify the provisions on resistance to aging in Regulation No. 67.

Text adopted by the Working Party on General Safety Provisions (GRSG) at its 103rd session, clarifying the provisions on the aerostatic pressure during the external leakage test of Class 0 components. It is based on document GRSG/2012/17 as amended during that session.

Proposal as approved by the GRSG:

1) to enable the approval of an OEM engine control unit on a CNG/LNG vehicle during the vehicle type approval process, eliminating the need for a separate type approval of the ECU, and

2) to clarify provisions concerning hose assemblies.

Proposal to introduce type-approval provisions for “valve control at stop-start” into the regulation on LPG equipment. The proposal would allow tank valves stay open in a commanded stop-start phase as is the case for the idling phase of non-stop-start vehicles. These provisions are similar to those for UN R110 on CNG vehicles.

Revision 4 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2018/18. This document incorporates the following change:

Proposal to

1. introduce new safety provisions with regard to LPG systems having hydraulic interconnections with the petrol or diesel fueling system through which inter-flows of fuels may occur,
2. establish procedures for the approval of non-seamless gas tube(s), gas tube(s) made of materials other than copper, stainless steel, and steel with corrosion-resistant coating, and their couplings in Liquefied Petroleum Gas (LPG) vehicles provided they can withstand the applicable tests according to Annex 15, and
3. require marking or other means of approval identification on accessories of the container (multivalve or, when approved separately, pressure relief valve (discharge valve) and pressure relief device).

Revision 5 | Amendment 1 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2019/10. This document incorporates the following change:

Proposal to insert type (item 1.1.) and pressure classification (item 1.2.) in the communication form (Annex 2B).

Revision 5 | Amendment 2 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2019/98. This document incorporates the following change:

Proposal to improve the specifications for LPG multi-valves in order to reduce the risks of blockage of the PRV/PRD due to deterioration of the hose connecting the PRV/PRD of the multi-valve to the gaseous phase.

Revision 5 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2019/94. This document incorporates the following change:

Proposal to insert new provisions on the location on the vehicle of the filling unit, marking of the LPG container date of production, and a limitation on the maximum service life of LPG containers to 15 years.

Revision 4 | Amendment 2 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2018/124. This document incorporates the following change:

Proposal to define visibility requirements for external gas containers and their accessories to facilitate periodic inspections. From 1 September 2020, Contracting Parties may refuse approvals under the 01 series issued after 1 September 2020.

Revision 4 | Amendment 3 has been prepared purely as documentation tool. The authentic and legally binding text is WP.29/2019/9. This document incorporates the following change:

Proposal to insert type (item 1.1.) and pressure classification (item 1.2.) in the communication form (Annex 2B).