The draft supplement 1 to the 01 series of amendments to UN R110 (pending before the November WP.29 session) introduces type-approval provisions for vehicles equipped with liquefied natural gas propulsion systems. In this document, Germany signals its intention to prepare substantial revisions concerning its safety provisions.

Comments on document WP.29/2013/101 (draft Supplement 1 to the 01 series of amendments to Regulation No. 110) raising concerns over safety issues regarding LNG systems.

(Originally submitted as GRSG-105-31 and reproduced here as LNG-12-04.)

Proposal to require an exterior protection on cylindrical gas tanks. Under the current regulation, such exterior protection may be fitted at the discretion of the manufacturer. The intention is to increase protection against corrosion of cylinders in response to a corroded cylinder explosion in Germany.

Proposal to require an exterior protection on cylindrical gas tanks. Under the current regulation, such exterior protection may be fitted at the discretion of the manufacturer. The intention is to increase protection against corrosion of cylinders in response to a corroded cylinder explosion in Germany.

Proposal to amend GRSG/2015/36 introducing requirements for the operation of a CNG heater when the vehicle is stationary and before starting the engine. The limitation on the number of valves used to operate the CNG combustion heater will require technical changes without any significant benefit. The proposal therefore deletes the limitation and introduces additional clarifications.

Proposal to establish a requirement for easy access to the CNG container installation in order to permit visual (periodical) inspection as a means to reduce the safety risks, such as refueling explosion, due to corrosion.

Proposal for a new series of amendments to UN Regulation No. 110 to improve the specifications for the installation and inspection of CNG cylinders and of LNG tanks and their accessories. This proposal addresses incidents caused by cylinder corrosion. The proposal aims to reinforce the requirements for adequate cylinder protection and for sufficient access to the cylinder and its accessories to allow regular visual inspection.

The target of the meeting was to define essential periodic inspection requirements to be respected when installing gaseous fuel components into a vehicle, and to clarify the material requirements for components inside the LPG tank. The work addressed UN R67 and UN R110. No further meetings are planned at this time.

Proposal developed by the Gas-fueled Vehicle Regulations Task Force to facilitate periodic inspections of gas containers through better visibility. In addition, Germany suggests adding a paragraph to allow a Contracting Party or a regional organization of Contacting Parties like the EU to refuse national or regional type-approval and to refuse first registration of a vehicle type affected by the changes introduced by the 03 series of amendments but not meeting those stipulations. Paragraph 24.22. is an addition to paragraph 22.18. giving more stress to the aspects of national and regional type-approval and of first registration of vehicles.