18. The expert from Italy introduced ECE/TRANS/WP.29/GRRF/2017/15 with provisions aimed at aligning the text of UN GTR No. 3 and UN Regulation No. 78 especially on tri-cycles Anti-lock Braking Systems (ABS), Emergency Stop Signal and means to disable the ABS function (‘ABS switch’), prepared in collaboration with the expert from IMMA. The expert from Canada answered to the proposal (GRRF-84-10). The expert from Italy presented ECE/TRANS/WP.29/GRRF/2017/16 with the report on the activities related to the amendment proposal to UN GTR No.3. The expert from India informed GRRF about regulatory activities in his Country on the obligation to install ABS on new motorcycle with an engine capacity of 125 cm3 and more.

19. GRRF recommended the expert from Italy to keep the draft amendment to GTR No. 3 as harmonized as possible with UN Regulation No. 78 especially with regard to the ABS switch to avoid subsequent amendments to UN Regulation No. 78.

20. The expert from Italy agreed to submit a revised proposal for the February 2018 session of GRRF.

143. The representative of Italy presented ECE/TRANS/WP.29/51 proposing that AC.3 authorize the development of an amendment to GTR No. 3 under the sponsorship of his country, in order to align the provisions of global technical regulation No. 3 with those of Regulation No. 78, to ensure electromagnetic immunity of ABS-systems, introduce ABS performance requirements for category 3-5 vehicles (three-wheelers), ensure uniform requirements for equipment such as Electronic Stop Signal System and the means to disable the ABS, if equipped. This amendment aimed to harmonize the global technical regulation with recent amendments of the UN Regulation No.78 and was submitted to AC.3 for consideration.

144. The AC.3 adopted the ECE/TRANS/WP.29/2017/51 and requested the secretariat to reproduce it as an AC.3 document for the fiftieth session of AC.3 in June 2017.

24. The expert from Italy introduced GRRF-83-09 proposing to insert in Global Technical Regulation (GTR) No. 3 (Motorcycle braking) provisions on tri-cycles Anti-lock Braking Systems (ABS), Emergency Stop Signal and means to disable the ABS function (‘ABS switch’) prepared in collaboration with the expert from IMMA. He informed GRRF on the related discussion at the Executive Committee AC.3 in November 2016 that agreed in principle with the proposal to align GTR No. 3 and Regulation No. 78. The expert from Canada answered to the proposal (GRRF-83-10). The GRRF agreed to resume consideration of these proposals on the basis of an official working document that the experts from Canada and Italy volunteered to prepare.

24. The expert from Italy consulted GRRF (GRRF-82-04) on a proposal to develop an amendment to GTR No. 3 on motorcycle braking. He informed that Italy, at the forty-eighth session of AC.3, would propose to sponsor this amendment, harmonizing the provisions of the GTR and those in Regulation No. 78, dealing with Electromagnetic Compatibility (EMC), tri-cycles Anti-lock Braking Systems (ABS), Emergency Stop Signal and means to disable the ABS function (‘ABS switch’). The expert from Canada pointed out potential challenges related to the absence of specific EMC testing requirements for braking systems and the obligation to justify why mandating the fitment of ABS on tri-cycles. GRRF supported the content of GRRF-82-04. The expert from Italy volunteered to request the authorization to develop Amend. 3 to GTR No. 3 at the forty-eighth session of AC. 3 in November 2016.