At its fifty-ninth session, GRSP approved a proposal for the 07 series of amendments to UN R16 to mandate safety belt reminders for all vehicle seats. This proposal aligns provisions in UN R121 with the changes to UN R16:
a) the term “seat belt” is replaced by “safety belt”,
b) the symbol for safety belt, defined in item 21 of Table 1 in the Regulation, may be displayed in different colours to convey different meanings. Therefore, the existing footnote ¹⁸ has been added to item 21, and
c) this symbol may be replaced by different symbols for seats other than those of the front row. Therefore, a new footnote ²² is added to item 21. This proposal does not change any of the technical requirements of UN R121.

42. The expert from OICA presented GRSG-111-37 (superseding ECE/TRANS/WP.29/GRSG/2016/26) aimed at aligning the provisions of UN Regulation No. 121 to those of the 07 series of amendments to UN Regulation No. 16 on safety-belts.

43. The expert from OICA suggested aligning the text of item No. 31 with that of standard ISO 2575 (GRSG-111-14). GRSG generally supported the proposal with a study reservation on GRSG-111-37 from the expert from Germany. GRSG decided to resume consideration of the proposals at its next session in April 2017 and requested the secretariat to circulate both documents (GRSG-111-14 and GRSG-111-37) with an official symbol.

Proposal to align UN R121 with the 07 series of amendments to UN Regulation No. 16:

1. the term “seat belt” is replaced by “safety belt”,
2. the symbol for safety belt, defined in item 21 of Table 1 in the Regulation, may be displayed in different colours to convey different meanings. Therefore, the existing footnote 18 has been added to item 21, and
3. this symbol may be replaced by different symbols for seats other than those of the front row. Therefore, a new footnote 22 is added to item 21.

This proposal also aligns UN R121 with ISO 2575 per ISO Resolution 664 allowing for use of the diesel engine glow plug symbol with non-diesel technologies that (also) assist engine starting at low temperatures. The current text of the Regulation focuses on diesel engine glow plugs that assist in starting the engine at low temperatures.

37. The expert from OICA presented GRSG-112-23 (superseding ECE/TRANS/WP.29/GRSG/2017/5) to align the provisions of UN Regulation No. 121 to those of the 07 series of amendments to UN Regulation No. 16 on safety belts. GRSG adopted the proposal as reproduced in Annex IV to the session report and requested the secretariat to submit it to WP.29 and AC.1 as part (see para. 36 above) of draft Supplement 2 to the 01 series of amendment to UN Regulation No. 121 for consideration at their November 2017 sessions.

38. The expert from the Russian Federation underlined the need to correct the Russian version of ECE/TRANS/WP.29/GRSG/2017/5 in line with the English text (GRSG-112-25). GRSG requested the secretariat to take into account the correction of the Russian translation when preparing the above mentioned official document.

Proposal to add a telltale and symbols for “Accident Emergency Call System (AECS)” and to align UN R121 with the 07 series of amendments to UN Regulation No. 16:

1. the term “seat belt” is replaced by “safety belt”,
2. the symbol for safety belt, defined in item 21 of Table 1 in the Regulation, may be displayed in different colours to convey different meanings. Therefore, the existing footnote 18 has been added to item 21, and
3. this symbol may be replaced by different symbols for seats other than those of the front row. Therefore, a new footnote 22 is added to item 21.