Proposal to introduce qualification tests to determine that a temperature activated Pressure Relief Device (PRD) will consistently activate in a timely manner.

Text corrects errors/mistakes in the current regulation and update text to be in line with the requirements coming from ISO15500 and NGV3.1 (industry standards for CNG)

Proposal to introduce a change of definition of working pressure for LNG, and introduce a value for that pressure in Annex 3B. Proposal also applicable for Supplement 2 to the 05 series of Amendments

Proposals to update the existing requirements for compressed natural gas/liquified natural gas (CNG/LNG) fuelled components.

37. The expert from EC introduced a study (GRSP-70-23) to review and assess the appropriateness of crash pulses found in the current European Union legislation. Therefore, he stated that it would be needed to identify potential amendments to regulations and assess the potential benefits as well as any (unintended) consequences. He informed that accident data are limited and real-world issue could therefore not defined. At this stage, there is lack of concrete cost-effective data and EC will not follow up the modification of pulses for the time being. He clarified that the European Commission was obliged to evaluate vehicle safety by July 2027 (Article 14 of General Safety Regulation (EU) 2019/2144) and would take this research into account at that time. GRSP suggested sharing the same presentation with the Working Party on General Safety (GRSG). Notably, the expert from EC recommended ensured consistency of UN Regulation No 67 (LPG) and 110 (CNG) as covered by this research, with UN Regulation No 134 / GTR No 13 (hydrogen safety).

65. The expert from NGV Global presented document, GRSG-122-28, a proposal for amendment to UN Regulation No. 110. He recognized contributions from the expert from Hexagon agility and the expert from the Netherlands as they were both elemental in the preparation of this report. He stated the purpose of this proposal is to add a new “Annex 5R” to the test requirements, to demonstrate that the pressure relief device (PRD) will continually activate throughout its designed life.

66. GRSG adopted GRG-122-28 and requested its submission as formal document in the 123rd session of GRSG in March 2022. The Chair of GRSG suggested that it will be beneficial to have a consolidated version of the gas vehicle Regulations which are UN Regulations Nos. 67 and 110 as soon as possible as they have undergone several amendments. The secretariat of GRSG confirmed that these Regulations are in the process of being consolidated.

Proposal for GRSG to add provisions for excess flow valves (EFV) which can shut off fuel flow at the time of operation to specific components.

Proposal from GRSG to update the vehicle-fuel identification symbols in line with ISO 17840-4, Part 4 (Propulsion energy identification) and to extend the scope of the identification requirements to N_/2 and N₃ vehicles.

Proposal to update the whole vehicle approval requirements to the latest series of amendments and to add the WLTP emissions cycle (UN R154). The update would also reflect the separation of UN R116 into three regulations respectively covering vehicle locking systems, alarm systems, and immobilizers.

82. The representative of Japan, Chair of the IWG on IWVTA presented a proposal for the 04 series of amendments to UN Regulation No. 0 (WP.29-184-07), the regular annual update of the UN Regulation and its Annex 4, Part A, Section I (List of requirements for Universal (U)-IWVTA), including an addition of four UN Regulations into the table (Nos. 154, 161, 162 and 163). He invited the World Forum to consider the document for issuing as an official proposal for its November 2021 session.

83. The representative from Switzerland explained the situation in the country that is similar to the situation in the EU, where approval from UN Regulation No. 154 are not sufficient to grant vehicle emission approvals. He suggested to add a footnote in UN Regulation No. 154 to clarify the situation for all CPs. The representative from the EU agreed that for the purpose of EU type approval, an approval to UN Regulation No. 154 needs to be accompanied by supplementary evidence of meeting regional regulatory requirements. He added that the intention of the EU was not to prevent other CPs to benefit from an inclusion of UN Regulation No. 154 into UN Regulation No. 0.

84. The representative from OICA sought further clarifications from the EU, and whether approvals to UN Regulation No. 154 (accompanied by the needed additional EU regulatory requirements) would be accepted by the EU. The representative from the EU said the questions would be clarified in the EU legislation and stated the approvals to UN Regulation No. 154 in itself would be accepted, but evidence related to additional emission requirements not covered by UN Regulation No. 154 was needed to get EU Whole Vehicle Type approval. The representative from the UK supported the contribution from Switzerland and suggested some further discussions were needed. The Chair invited WP.29 to reconsider this issue during the November 2021 session, if need be, when the inclusion of UN Regulation No. 154 into UN Regulation No. 0 is expected.

85. The World Forum requested the secretariat to issue WP.29-184-07 as an official document for consideration at its November 2021 session, invited interested stakeholders to discuss outstanding issues and to revise the proposal accordingly prior to submission.

Proposal for adding provisions for excess flow valves (EFV) which can shut off fuel flow at the time of operation, to specific components.

69. The expert from OICA introduced a proposal for amendments to UN Regulation No. 110 (ECE/TRANS/WP.29/GRSG/2021/10, as amended by GRSG-121-22), with the aim of adding provisions for excess flow valves (EFV) which can shut off fuel flow at the time of operation, to specific components.

70. Following technical discussions and comments, GRSG adopted ECE/TRANS/WP.29/GRSG/2021/10, the proposal for supplement 3 to the 04 series of amendments to UN Regulation No. 110, as amended by GRSG-121-22 and in session, and requested the secretariat to submit it as an official document to WP.29 and AC.1 for consideration and vote at their November 2021 sessions.

Proposal to add provisions for excess flow valves (EFV) which can shut off fuel flow during operation to specific
components.

69. The expert from OICA introduced a proposal for amendments to UN Regulation No. 110 (ECE/TRANS/WP.29/GRSG/2021/10, as amended by GRSG-121-22), with the aim of adding provisions for excess flow valves (EFV) which can shut off fuel flow at the time of operation, to specific components.

70. Following technical discussions and comments, GRSG adopted ECE/TRANS/WP.29/GRSG/2021/10, the proposal for supplement 3 to the 04 series of amendments to UN Regulation No. 110, as amended by GRSG-121-22 and in session, and requested the secretariat to submit it as an official document to WP.29 and AC.1 for consideration and vote at their November 2021 sessions.

Proposal to update the vehicle-fuel identification symbols in line with ISO 17840-4, Part 4 (Propulsion energy identification) and to extend the scope of the identification requirements to N_/2 and N₃ vehicles.

67. The expert from the Netherlands introduced a proposal for amendments to UN Regulation No. 110 (ECE/TRANS/WP.29/GRSG/2021/9), aiming to update the existing requirements on identification of CNG- and LNG-fuelled buses and to introduce similar identification requirements for trucks.

68. GRSG adopted ECE/TRANS/WP.29/GRSG/2021/9, the proposal for the 05 series of amendments to UN Regulation No. 110, as amended during the session, and requested the secretariat to submit it as an official document to WP.29 and AC.1 for consideration and vote at their November 2021 sessions.

Proposal to add provisions for excess flow valves (EFV) which can shut off fuel flow at the time of operation to specific components.

46. The expert from OICA introduced GRSG-119-21, a proposal for amendments to UN Regulation No. 110, related to the definition of “Excess flow valve” to differentiate between pressure-equalization type and shut-off type excess flow valves, and to CNG system requirements, as elaborated in GRSG-119-20.

47. Following detailed technical discussions, including comments from representatives from the Netherlands, Sweden and NGV Global, GRSG requested the submission of a revised version of GRSG-119-20, based on further consideration and discussions among interested stakeholders, as an official document for consideration at the April 2021 session of GRSG, inviting interested stakeholders to deliver their remarks and comments to OICA.

46. The expert from OICA introduced GRSG-119-21, a proposal for amendments to UN Regulation No. 110, related to the definition of “Excess flow valve” to differentiate between pressure-equalization type and shut-off type excess flow valves, and to CNG system requirements, as elaborated in GRSG-119-20.

47. Following detailed technical discussions, including comments from representatives from the Netherlands, Sweden and NGV Global, GRSG requested the submission of a revised version of GRSG-119-20, based on further consideration and discussions among interested stakeholders, as an official document for consideration at the April 2021 session of GRSG, inviting interested stakeholders to deliver their remarks and comments to OICA.