10. The expert from Germany presented a new series of amendments to UN Regulation No. 92 which introduce requirements for non-original replacement exhaust silencing systems (NORESS). GRB adopted the proposals and requested the secretariat to submit them to WP.29 and AC.1 for consideration and vote at their March 2019 sessions as a draft 02 series of amendments to UN Regulation No. 92.

29. The expert from Germany presented an overview of issues with noise emissions of non-original replacement exhaust silencer systems (NORESS) for L-category vehicles (GRB-67-03), as well as a possible solution in the form of a Supplement 3 to the 01 series to UN Regulation No. 92 (GRB-67-02). Following a brief exchange of views, GRB generally supported the approach and agreed that the proposed modifications should become a new series of amendments. GRB experts were invited to transmit their comments, if any, directly to the expert of Germany, so that he would be able to submit an official document for consideration at the next session.

3. The expert from the European Commission proposed to introduce additional sound emission provisions (ASEP) for L4 and L5 category vehicles with the power-to-mass ratio (PMR) of more than 50 W/kg (ECE/TRANS/WP.29/GRB/2018/7 and GRB-68-22). GRB adopted the proposals, as amended (Annex II), and requested the secretariat to submit them to WP.29 and to the Administrative Committee (AC.1) for consideration and vote at their March 2019 sessions as draft 08 series of amendments to UN Regulation No. 9.

28. The expert from EC presented updated amendments for a new series of amendments to Regulation No. 9 with the aim to introduce ASEP requirements for L4 and L5 category vehicles with the power-to-mass ratio (PMR) of more than 50 W/kg (GRB-67-04). The expert of IMMA was of the view that the industry would need much longer transitional periods for implementing the amendments. The secretariat pointed out that the references to standard ISO 10844 should be updated. GRB invited the expert from EC to update the proposals and submit them as an official document for consideration at the next session.

18. The expert from the Netherlands presented a draft Resolution on Road Surface Labelling and background documents (ECE/TRANS/WP.29/GRB/2018/8, ECE/TRANS/WP.29/GRB/2018/9, GRB-68-08-Rev.1, GRB-68-29). Various experts expressed concerns that the substance of the proposed resolution goes beyond the scope of GRB and WP.29. They also pointed out potential difficulties in the possible implementation of the resolution at the national level, due to the fact that road pavements normally fall within the competence of a separate governmental agency which is not responsible for road vehicles. The expert from ETRTO commented on the draft resolution and pointed out that he would need more background information to evaluate the proposal (GRB-68-11). He also called for establishing a joint task force with the participation of the road construction industry.

19. Given the above comments, GRB was of the view that it would be premature to adopt the draft Resolution at this session and advocated the idea of consulting the road construction industry and establishing a task force which would report back to GRB. GRB noted that the Netherlands might not be in a position to lead such a taskforce. The Chair pointed out his intention to seek the views of the Administrative Committee for the Coordination of Work (AC.2) and/or WP.29 on the scope of the draft resolution. Finally, GRB decided to review this subject at the next session and noted that the expert of the Netherlands, with the assistance of the expert from the Russian Federation, would slightly redraft the text of the resolution.

28. The expert from the Netherlands presented a revised draft Resolution on Road Surface Labelling (ECE/TRANS/WP.29/GRB/2019/2) and requested that it should be published as a reference document on the GRB website. GRB was also informed that WP.29, at its November 2018 session, had encouraged GRB to consult the road construction industry, to continue work on the draft Resolution and to report back to WP.29 in due course (ECE/TRANS/WP.29/1142, para. 69). The Vice-Chair proposed to solicit views on the document of the national road authorities. To this end, GRB invited all experts to consult their national road administrations and send feedback to the Vice-Chair who volunteered to consolidate the replies and report back to GRB at its next session.

18. The expert from the Netherlands presented a draft Resolution on Road Surface Labelling and background documents (ECE/TRANS/WP.29/GRB/2018/8, ECE/TRANS/WP.29/GRB/2018/9, GRB-68-08-Rev.1, GRB-68-29). Various experts expressed concerns that the substance of the proposed resolution goes beyond the scope of GRB and WP.29. They also pointed out potential difficulties in the possible implementation of the resolution at the national level, due to the fact that road pavements normally fall within the competence of a separate governmental agency which is not responsible for road vehicles. The expert from ETRTO commented on the draft resolution and pointed out that he would need more background information to evaluate the proposal (GRB-68-11). He also called for establishing a joint task force with the participation of the road construction industry.

19. Given the above comments, GRB was of the view that it would be premature to adopt the draft Resolution at this session and advocated the idea of consulting the road construction industry and establishing a task force which would report back to GRB. GRB noted that the Netherlands might not be in a position to lead such a taskforce. The Chair pointed out his intention to seek the views of the Administrative Committee for the Coordination of Work (AC.2) and/or WP.29 on the scope of the draft resolution. Finally, GRB decided to review this subject at the next session and noted that the expert of the Netherlands, with the assistance of the expert from the Russian Federation, would slightly redraft the text of the resolution.

28. The expert from the Netherlands presented a revised draft Resolution on Road Surface Labelling (ECE/TRANS/WP.29/GRB/2019/2) and requested that it should be published as a reference document on the GRB website. GRB was also informed that WP.29, at its November 2018 session, had encouraged GRB to consult the road construction industry, to continue work on the draft Resolution and to report back to WP.29 in due course (ECE/TRANS/WP.29/1142, para. 69). The Vice-Chair proposed to solicit views on the document of the national road authorities. To this end, GRB invited all experts to consult their national road administrations and send feedback to the Vice-Chair who volunteered to consolidate the replies and report back to GRB at its next session.

5. The expert from the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) proposed amendments aimed at updating and revising Supplement 4 to the 03 series of amendments to UN Regulation No. 51 (ECE/TRANS/WP.29/GRB/2018/10). GRB adopted the proposals and requested the secretariat to submit them to WP.29 and AC.1 for consideration and vote at their March 2019 sessions as a draft Supplement 5 to the 03 series of amendments to UN Regulation No. 51, subject to the following modifications:

Page 2, lines 2 and 3, for Figure 3c read Figure 4c.

Page 3, table, row 3, last column, for l_veh read l.

11. The expert from OICA proposed amendments to Regulation No. 51 with the aim to ensure transparency during the type approval process in situations where the manufacturer could either use mechanical or electronic devices to control the gear shift, or take measures to avoid accelerations greater than 2.0 m/s² (ECE/TRANS/WP.29/GRB/2018/2 and GRB-67-17). The proposal received questions and/or comments from the experts of China, France, Germany, Japan and ISO. GRB adopted the proposals, as contained in Annex III to the session report, and requested the secretariat to submit them to WP.29 and AC.1 for consideration and vote at their June 2018 sessions as a draft Supplement 4 to the 03 series of amendments to Regulation No. 51.

6. The Chair of the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) proposed to introduce transitional provisions for Supplements 4 and 5 to the 03 series of amendments to UN Regulation No. 51 (ECE/TRANS/WP.29/GRB/2019/9 and ECE/TRANS/WP.29/GRB/2019/11). GRB adopted these proposals and recalled that Supplement 5 would still be considered by WP.29 at its session in March 2019 (ECE/TRANS/WP.29/2019/4). To speed up the amendment process, GRB requested the secretariat to issue a revised version of ECE/TRANS/WP.29/2019/4 with the adopted transitional provisions.

8. The Chair of IWG ASEP proposed a new Supplement 6 to the 03 series of amendments with the aim to correct a reference and to clarify the requirements for stationary sound (ECE/TRANS/WP.29/GRB/2019/10). The expert from Germany, supported by the expert from the Netherlands, raised several issues concerning the proposal. GRB decided to postpone the discussion to the next session and invited all parties concerned to prepare a revised wording which would address the concerns of the expert from Germany.

4. The expert from IMMA proposed amendments which make additional sound emission provisions (ASEP) testing mandatory (ECE/TRANS/WP.29/GRB/2018/11). GRB adopted the proposals and requested the secretariat to submit them to WP.29 and AC.1 for consideration and vote at their March 2019 sessions as a draft Supplement 7 to the 04 series of amendments UN Regulation No. 41.

28. The expert from ETRTO proposed amendments to UN Regulations Nos. 30 and 64 which introduce provisions related to extended mobility tyres (EMT) (ECE/TRANS/WP.29/GRVA/2018/6, ECE/TRANS/WP.29/GRVA/2018/7 and GRB-68-14). He pointed out that EMT were already available on the market and needed to be regulated. The experts from Germany, Italy and Japan supported the proposals. The experts from France, Netherlands and Switzerland posed questions. The expert from UK requested data on the availability of EMT on the market. GRB was of the view that Contracting Parties needed more time to study the proposals and decided to defer this item to the next session. Meanwhile, GRB experts were invited to study the proposals and send their remarks to ETRTO.

29. The expert from ETRTO presented GRRF-86-04, introducing GRRF-86-05, and announcing the intention of ETRTO to propose provisions for extended mobility tyres in UN Regulations Nos. 30 and 64, on the basis of initial work done by the tyre industry at the International Standardization Organization (ISO). GRRF noted the reference to ISO documentation and invited the expert from ETRTO to prepare a more detailed proposal for consideration at the next GRRF session, both concerning UN Regulations Nos. 30 and 64.

17. GRB resumed consideration of the ETRTO proposals for amendments to UN Regulations Nos. 30 and 64 which introduce provisions on extended mobility tyres (EMT) (ECE/TRANS/WP.29/GRVA/2018/6, ECE/TRANS/WP.29/GRVA/2018/7 and GRB-68-14). In reply to the questions raised at the previous session, the expert of ETRTO presented GRB-69-12. GRB adopted the proposals and requested the secretariat to submit them to WP.29 and AC.1 for consideration and vote at their June 2019 sessions as a draft Supplement 21 to the 02 series of amendments UN Regulation No. 30 and a draft Supplement 1 to the 03 series of amendments to UN Regulation No. 64.

28. The expert from ETRTO proposed amendments to UN Regulations Nos. 30 and 64 which introduce provisions related to extended mobility tyres (EMT) (ECE/TRANS/WP.29/GRVA/2018/6, ECE/TRANS/WP.29/GRVA/2018/7 and GRB-68-14). He pointed out that EMT were already available on the market and needed to be regulated. The experts from Germany, Italy and Japan supported the proposals. The experts from France, Netherlands and Switzerland posed questions. The expert from UK requested data on the availability of EMT on the market. GRB was of the view that Contracting Parties needed more time to study the proposals and decided to defer this item to the next session. Meanwhile, GRB experts were invited to study the proposals and send their remarks to ETRTO.

17. GRB resumed consideration of the ETRTO proposals for amendments to UN Regulations Nos. 30 and 64 which introduce provisions on extended mobility tyres (EMT) (ECE/TRANS/WP.29/GRVA/2018/6, ECE/TRANS/WP.29/GRVA/2018/7 and GRB-68-14). In reply to the questions raised at the previous session, the expert of ETRTO presented GRB-69-12. GRB adopted the proposals and requested the secretariat to submit them to WP.29 and AC.1 for consideration and vote at their June 2019 sessions as a draft Supplement 21 to the 02 series of amendments UN Regulation No. 30 and a draft Supplement 1 to the 03 series of amendments to UN Regulation No. 64.

29. The expert from ETRTO proposed to clarify the scope of UN Regulation No. 106 (ECE/TRANS/WP.29/GRVA/2018/8). GRB adopted the proposals and requested the secretariat to submit them to WP.29 and AC.1 for consideration and vote at their March 2019 sessions as a draft Supplement 17 to the original series of amendments to UN Regulation No. 106, subject to the following modifications:

Paragraph 1.2. (new), amend to read:

“1.2. This UN Regulation does not apply to the following tyres:”