Draft proposal as of 15 January 2021.

Proposal to correct some references, which need to be updated as a consequence of document WP.29/2020/70, adopted at the June 2020 WP.29 session, notably

1. Paragraph 5.4.1 renumbered as paragraph 5.5.1.
2. Paragraphs 5.4. and 5.5. respectively renumbered as paragraphs 5.5. and 5.6.

Consolidation of comments from documents TFRWS-15-03-Rev.3 and TFRWS-16-03-Rev.1.

Updated comments prepared by the secretary based on Japan’s original document.

Proposal to expand the scope of the activity to include C2 and C3 tyres.

1. Improve the reproducibility of the test method (in alignment with ISO 23671)
2. Include maximum load and pressure information per ASTM F2493-19
3. Update the test report templates accordingly
4. Remove the limitation for “moulded” markings
5. Transition from SRTT14 to SRTT16
6. Align track friction requirements for track characterization per the transition
7. Clarify vehicle selection provisions
8. Introduce transitional provisions

Proposal to align the 04 series of amendments with ISO 10844:2014, replacing provisions from ISO 10844:1998 (and proposing a clearer image for Figure 1).

Proposal to clarify UN R41 and introduce provisions to improve testing to be more representative of real-world operation by expanding the scope of test and to align the Regulation with ISO 10844:2014, replacing provisions from ISO 10844:1998 (and proposing a clearer image for Figure 1).