IRU request for a risk assessment on CNG and LNG vehicles pursuant to a coach fire during which the main valves on CNG cylinders ruptured.

Link to the video referenced in the IRU discussion paper on the need for measures to mitigate CNG/LNG fire risks.

As part of investigations into a bus accident involving CNG container ruptures, the Netherlands would like to know whether other countries have experienced fires in CNG vehicles and what measures have been taken to reduce the potential risks.

Proposed revisions to the CLEPA to introduce into Regulations Nos. 67 and 110 type approval provisions for “valve control at stop-start”. The CLEPA proposal would allow the tank valves to stay open in an active stop-start phase for CNG/LPG with stop-start engines.

This compendium of case studies is provided in response to a question raised by the French delegation to the Amendments proposed to Regulation 110 pertaining to the use of LNG as a vehicular fuel.

Document prepared by the Chairman of the LNG Task Force (Netherlands) to respond to questions raised by France concerning the proposed LNG amendments to UN R110 (document GRSG/2013/7).

Text prepared by the Chairman of the LNG Task Force (Netherlands) in response to concerns raised by France regarding the possibility of overfilling an LNG system. This amendment to the proposal to introduce LNG provisions into UN R110 (document GRSG/2013/7) matches ISO requirements covering the same issue.

Text prepared by the Chairman of the LNG Task Force (Netherlands) in response to questions raised by France concerning the proposed amendment to introduce LNG provisions into UN R110 (document GRSG/2013/7). The amendments aim to improve the internal consistency of the proposed amendments.

Text prepared by the Chairman of the LNG Task Force (Netherlands) to address issues and concerns about proposed amendments to UN R110 (document GRSG/2013/7) raised by France.

Text prepared by the Chairman of the LNG Task Force (Netherlands) to address issues and concerns about proposed amendments to UN R110 (document GRSG/2013/7) raised by France.

Text prepared by the Chair of the LNG Task Force (Netherlands) to improve provisions for the identification of the correct device for cryogenic applications and consistency within the proposed amendments to UN R110 (GRSG/2013/7) pursuant to concerns raised by France.

Text prepared by the Chair of the Task Force on Liquefied Natural Gas (LNG) vehicles (based on document GRSG/2013/7) to introduce type approval provisions for vehicles equipped with LNG propulsion systems. The proposal has been prepared as a new consolidated version (Revision 3) of UN Regulation No. 110.

Text prepared by the Chair of the Task Force on Liquefied Natural Gas vehicles to introduce type-approval provisions for vehicles equipped with LNG propulsion systems. The proposal has been prepared as a new consolidated version (Revision 3) of UN Regulation No. 110.

Text prepared by the European Association of Automotive Suppliers (CLEPA) 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 as is the current requirement.

Text prepared by CLEPA to introduce a prohibition on any flow of a gaseous fuel into a diesel/gasoline reservoir and limiting the flow of diesel/gasoline into a gaseous fuel tank in bi-fuel vehicles.

Text prepared by the European Association of Automotive Suppliers (CLEPA) to introduce into Regulations Nos. 67 and 110 type approval provisions for “valve control at stop-start”. This proposal allows the tank valves to stay open in an active stop-start phase for CNG/LPG with stop-start engines.