32. The expert from ISO presented an overview of the activities of his organization on specific aspects for gaseous fuels (GRSG-111-25). He introduced GRSG-111-02 with the rationale of all amendments proposed to UN Regulation No. 110 in document ECE/TRANS/WP.29/GRSG/2016/22 superseding ECE/TRANS/WP.29/GRSG/2016/6. GRSG welcomed GRSG-111-03 listing the copies of all ISO standards referenced to in UN Regulation No. 110 on CNG/LNG vehicles. A number of experts raised a concern on the dynamic referencing of international standards and expressed their preference for a static referencing, mainly for legal purposes. GRSG reviewed the document and agreed on the need to adopt the proposal as a new 03 series of amendments and to insert transitional provisions triggered of the 1 September. The expert from France asked for more detailed information on each of the proposed amendments, especially on the level of stringency and their impact on technical services. The expert from CLEPA underlined the need to also insert transitional provisions for existing type approvals and sufficient lead time for suppliers to upgrade them.

33. Following study reservations by the experts from Germany, France and CLEPA, GRSG decided to resume consideration of the proposal at its next session in April 2017 based on a revised document to be submitted by ISO. The Chair invited all experts to send their written comments on GRSG-111-02-Rev.1 in due time to the experts from ISO or NGV Global.

31. The expert from Canada gave a presentation on high pressure cylinders for the on-board storage of natural gas as a fuel for motor vehicles (GRSG-106-29). He underlined the need to harmonize worldwide the test requirements for the CNG containers and proposed to align the provisions of Annex 3 to UN Regulation No. 110 with those of standard ISO 11439:2013. He added that GRSG should also consider simply inserting into Annex 3, references to ISO 11439. GRSG noted the decision of WP.29 that a reference in a UN Regulation to a private standard should not be adopted without free availability of that standard (see report ECE/TRANS/WP.29/1108, para. 39). The expert from OICA questioned the relevancy of the ISO standard, if all provisions were included into the UN Regulation. The Chair invited the gas experts to prepare an official document for consideration at the next GRSG session. The secretariat was requested to keep GRSG-106-29 on the agenda as a reference document.

32. The expert from ISO presented an overview of the activities of his organization on specific aspects for gaseous fuels (GRSG-111-25). He introduced GRSG-111-02 with the rationale of all amendments proposed to UN Regulation No. 110 in document ECE/TRANS/WP.29/GRSG/2016/22 superseding ECE/TRANS/WP.29/GRSG/2016/6. GRSG welcomed GRSG-111-03 listing the copies of all ISO standards referenced to in UN Regulation No. 110 on CNG/LNG vehicles. A number of experts raised a concern on the dynamic referencing of international standards and expressed their preference for a static referencing, mainly for legal purposes. GRSG reviewed the document and agreed on the need to adopt the proposal as a new 03 series of amendments and to insert transitional provisions triggered of the 1 September. The expert from France asked for more detailed information on each of the proposed amendments, especially on the level of stringency and their impact on technical services. The expert from CLEPA underlined the need to also insert transitional provisions for existing type approvals and sufficient lead time for suppliers to upgrade them.

33. Following study reservations by the experts from Germany, France and CLEPA, GRSG decided to resume consideration of the proposal at its next session in April 2017 based on a revised document to be submitted by ISO. The Chair invited all experts to send their written comments on GRSG-111-02-Rev.1 in due time to the experts from ISO or NGV Global.

28. The expert from ISO presented GRSG-112-38 justifying the need to harmonize the requirements on Compressed Natural Gas (CNG) and/or Liquefied Natural Gas (LNG) vehicles in UN Regulation No. 110 with those in the latest version of ISO 11439:2013 (as proposed in ECE/TRANS/WP.29/GRSG/2016/22). He recalled the comments received by GRSG experts during the last sessions (mainly on GRSG-111-02-Rev.1 and GRSG-112-05) and announced his intention to prepare, in due time, a revised official document for consideration at the next GRSG sessions, including transitional provisions.

32. The expert from ISO presented an overview of the activities of his organization on specific aspects for gaseous fuels (GRSG-111-25). He introduced GRSG-111-02 with the rationale of all amendments proposed to UN Regulation No. 110 in document ECE/TRANS/WP.29/GRSG/2016/22 superseding ECE/TRANS/WP.29/GRSG/2016/6. GRSG welcomed GRSG-111-03 listing the copies of all ISO standards referenced to in UN Regulation No. 110 on CNG/LNG vehicles. A number of experts raised a concern on the dynamic referencing of international standards and expressed their preference for a static referencing, mainly for legal purposes. GRSG reviewed the document and agreed on the need to adopt the proposal as a new 03 series of amendments and to insert transitional provisions triggered of the 1 September. The expert from France asked for more detailed information on each of the proposed amendments, especially on the level of stringency and their impact on technical services. The expert from CLEPA underlined the need to also insert transitional provisions for existing type approvals and sufficient lead time for suppliers to upgrade them.

33. Following study reservations by the experts from Germany, France and CLEPA, GRSG decided to resume consideration of the proposal at its next session in April 2017 based on a revised document to be submitted by ISO. The Chair invited all experts to send their written comments on GRSG-111-02-Rev.1 in due time to the experts from ISO or NGV Global.

29. The expert from France proposed incorporating new provisions concerning refrigeration systems for cooling the cargo compartment which are connected to the compressed natural gas (CNG) and/or liquefied natural gas (LNG) system (ECE/TRANS/WP.29/GRSG/2016/16). The expert from Japan raised concerns about risks of increased filling cycles of CNG cylinders due to a higher filling frequency. He suggested supplementing the proposed provisions with additional test conditions to not exceed the maximum number of filling cycles of CNG cylinders (GRSG-111-18). A number of experts were of the opinion that the number of filling cycles of CNG cylinders specified in the test requirements of UN Regulation No. 110 would be sufficient to cover the higher filling frequencies. GRSG did not support the additional test conditions proposed by Japan.

30. GRSG adopted ECE/TRANS/WP.29/GRSG/2016/16 as amended below and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their March 2017 sessions, as draft Supplement 6 to the 01 series of amendments to UN Regulation No. 110.

Paragraph 18.1.7.1., replace “compartiment des marchandises” by “compartiment de chargement”.
Paragraph 18.5.1.3., subparagraphs (b) and (c), replace “compartiment des marchandises” by “compartiment de chargement” and “contrôle électronique” by “contrôle électronique GNC/GNL” (two times).

34. The expert from the Netherlands introduced GRSG-111-20 aimed at correcting an error in the definitions related to the manual valve. GRSG noted general support and agreed to resume consideration of this subject at its next session in April 2017. The secretariat was requested to circulate GRSG-111-20 with an official symbol.

29. The expert from the Netherlands introduced ECE/TRANS/WP.29/GRSG/2017/4 aimed at correcting an error in the definitions related to the manual valve. GRSG noted a number of comments and adopted ECE/TRANS/WP.29/GRSG/2017/4 as reproduced below. The secretariat was requested to submit it to WP.29 and AC.1 as draft Supplement 7 to the 01 series of amendment and as draft Supplement 1 to the 02 series of amendments to UN Regulation No. 110, for consideration at their November 2017 sessions.

Paragraph 4.16.1., amend to read:
“4.16.1. “Manual valve”: as defined in paragraph 4.22. that is rigidly fixed to the cylinder or tank."
Paragraph 4.16.3., amend to read:
“4.16.3. “Excess flow valve”: as defined in paragraph 4.21."
Paragraph 4.22., amend to read:
“4.22. “Manual valve” means a valve which is operated manually."

32. The expert from ISO presented an overview of the activities of his organization on specific aspects for gaseous fuels (GRSG-111-25). He introduced GRSG-111-02 with the rationale of all amendments proposed to UN Regulation No. 110 in document ECE/TRANS/WP.29/GRSG/2016/22 superseding ECE/TRANS/WP.29/GRSG/2016/6. GRSG welcomed GRSG-111-03 listing the copies of all ISO standards referenced to in UN Regulation No. 110 on CNG/LNG vehicles. A number of experts raised a concern on the dynamic referencing of international standards and expressed their preference for a static referencing, mainly for legal purposes. GRSG reviewed the document and agreed on the need to adopt the proposal as a new 03 series of amendments and to insert transitional provisions triggered of the 1 September. The expert from France asked for more detailed information on each of the proposed amendments, especially on the level of stringency and their impact on technical services. The expert from CLEPA underlined the need to also insert transitional provisions for existing type approvals and sufficient lead time for suppliers to upgrade them.

33. Following study reservations by the experts from Germany, France and CLEPA, GRSG decided to resume consideration of the proposal at its next session in April 2017 based on a revised document to be submitted by ISO. The Chair invited all experts to send their written comments on GRSG-111-02-Rev.1 in due time to the experts from ISO or NGV Global.

29. The expert from France proposed incorporating new provisions concerning refrigeration systems for cooling the cargo compartment which are connected to the compressed natural gas (CNG) and/or liquefied natural gas (LNG) system (ECE/TRANS/WP.29/GRSG/2016/16). The expert from Japan raised concerns about risks of increased filling cycles of CNG cylinders due to a higher filling frequency. He suggested supplementing the proposed provisions with additional test conditions to not exceed the maximum number of filling cycles of CNG cylinders (GRSG-111-18). A number of experts were of the opinion that the number of filling cycles of CNG cylinders specified in the test requirements of UN Regulation No. 110 would be sufficient to cover the higher filling frequencies. GRSG did not support the additional test conditions proposed by Japan.

30. GRSG adopted ECE/TRANS/WP.29/GRSG/2016/16 as amended below and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their March 2017 sessions, as draft Supplement 6 to the 01 series of amendments to UN Regulation No. 110.

Paragraph 18.1.7.1., replace “compartiment des marchandises” by “compartiment de chargement”.
Paragraph 18.5.1.3., subparagraphs (b) and (c), replace “compartiment des marchandises” by “compartiment de chargement” and “contrôle électronique” by “contrôle électronique GNC/GNL” (two times).

39. The expert from France presented GRSG-110-23 introducing new provisions for the use of natural gas refrigeration systems to vehicles propelled by natural gas (CNG or LNG). GRSG noted general support on the proposal and agreed to resume consideration of this subject at its next session in October 2016. For that purpose, the secretariat was requested to circulate GRSG-110-23 with an official symbol.

32. The expert from ISO presented an overview of the activities of his organization on specific aspects for gaseous fuels (GRSG-111-25). He introduced GRSG-111-02 with the rationale of all amendments proposed to UN Regulation No. 110 in document ECE/TRANS/WP.29/GRSG/2016/22 superseding ECE/TRANS/WP.29/GRSG/2016/6. GRSG welcomed GRSG-111-03 listing the copies of all ISO standards referenced to in UN Regulation No. 110 on CNG/LNG vehicles. A number of experts raised a concern on the dynamic referencing of international standards and expressed their preference for a static referencing, mainly for legal purposes. GRSG reviewed the document and agreed on the need to adopt the proposal as a new 03 series of amendments and to insert transitional provisions triggered of the 1 September. The expert from France asked for more detailed information on each of the proposed amendments, especially on the level of stringency and their impact on technical services. The expert from CLEPA underlined the need to also insert transitional provisions for existing type approvals and sufficient lead time for suppliers to upgrade them.

33. Following study reservations by the experts from Germany, France and CLEPA, GRSG decided to resume consideration of the proposal at its next session in April 2017 based on a revised document to be submitted by ISO. The Chair invited all experts to send their written comments on GRSG-111-02-Rev.1 in due time to the experts from ISO or NGV Global.

33. Reminding GRSG experts about the purpose of ECE/TRANS/WP.29/GRSG/2016/6, the expert from ISO introduced GRSG-110-05 proposing further amendments to UN Regulation No. 110 aimed at harmonizing the requirements for CNG cylinders with those of standard ISO 11439:2013. GRSG welcomed the work done by ISO. GRSG noted a number of study reservations and the request for a detailed justification of only referencing to ISO standards instead of reproducing the testing provisions. Following the recommendation by WP.29, GRSG underlined the need to have a static referencing of the international standards referred to in the proposal. A number of experts requested to have free access to these standards. The secretariat offered the possibility to make a copy of these standards available on the GRSG website, but protected by a password which will be circulated to the GRSG experts prior to the forthcoming GRSG session.

34. Following the discussion, the expert from ISO announced his intention to provide the secretariat with a copy of the most important standards referenced to in his proposal. He volunteered to submit in due time a revised official document for amending UN Regulation No. 110, taking into account the comments received.

28. The expert from ISO presented GRSG-112-38 justifying the need to harmonize the requirements on Compressed Natural Gas (CNG) and/or Liquefied Natural Gas (LNG) vehicles in UN Regulation No. 110 with those in the latest version of ISO 11439:2013 (as proposed in ECE/TRANS/WP.29/GRSG/2016/22). He recalled the comments received by GRSG experts during the last sessions (mainly on GRSG-111-02-Rev.1 and GRSG-112-05) and announced his intention to prepare, in due time, a revised official document for consideration at the next GRSG sessions, including transitional provisions.

38. The expert from ISO introduced GRSG-113-02 and GRSG-113-37 justifying the alignment of the provisions in the UN Regulation with those in the latest version of ISO 11439:2013 (as proposed in ECE/TRANS/WP.29/GRSG/2017/31). The expert from OICA expressed his preference to adopt the proposal as a new series of amendments and suggested inserting transitional provisions (GRSG-113-21). GRSG agreed on the need to insert transitional provisions and to replace the dynamic references to international standards by static ones. Following the discussion, the expert from ISO presented GRSG-113-38 taking into account the comments received. GRSG considered the document in detail and adopted the proposal as reproduced in Annex IV (based on GRSG-113-38-Rev.1). The secretariat was requested to submit it to WP.29 and AC.1, as a new draft 03 series of amendments to UN Regulation No. 110, for consideration at their March 2018 sessions.