Based on the outcomes of a European Commission study, proposal to clarify the text and align its provisions with other vehicle sound regulations, especially UN R41.

Proposal to clarify the regulation with regard to propulsion of the vehicle (replace the term “travel”), definition of the “pause function” (including taking into account the Japanese proposal to prohibit the use of a pause function), and provisions for deactivating AVAS coding in accordance with local market requirements and under conditions outside the scope of the regulation.

Based on the outcomes of a European Commission study, proposal to clarify the text and align its provisions with other vehicle sound regulations, especially UN R41, including to replace references to “two wheeled moped” with the term “L1 category vehicles” (and consequently to replace references to “moped” with “vehicle”) and to replace the term “noise” with “sound” (except for references to background noise) throughout the regulation. It proposes improved terminology and definitions, including new ones, improved sound emission testing conditions and procedures. It also introduces sound emission measurement through new testing of in use vehicles in motion.

Proposal to update, clarify, and restructure document GRB/2016/4 which aims to refine definitions, remove the “AWD” abbeviation for “audible warning device” to avoid confusion with its more common use for “all wheel drive”, add T category agricultural vehicles to the scope, modify some administrative communications, and add three-direction acoustic measurements. The proposal also aims to structure the regulation to enable its application to additional sound warning devices not presently regulated at the international level, excluding acoustic vehicle alerting systems (AVAS) which will be subject to a separate regulation on minimum vehicle sound levels.

Proposal for editorial improvements to document GRB/2016/4 intended to update and restructure UN R28.

Proposal to refine the scope by replacing the phrase “can travel” by “can be propelled”. The use of “travel” in the scope can be interpreted to include vehicles using using electrical systems for purposes other than propulsion (e.g., energy recuperation) that fall outside the test conditions of UN R138. The proposal further amends:

1. Paragraph 2.7. to make clear the “pause function” refers to systems that allow the driver to deactivate an AVAS system;
2. Paragraph 6.2.6.: The vehicle operator shall not deactivate AVAS while driving. However, the manufacturer shall be enabled to activate or deactivate AVAS, including automatically, by regional coding according to legal provisions of various markets.
3. Paragraph 11.: the transitional provisions were added according to the rules of WP.29 for new series of amendments. Paragraph 11.6. has been added to maintain approvals that also comply with the new series of amendments, as is the case for vehicles that do not have a pause function according to the newly suggested paragraph 6.2.6.
4. Annex 1, Addendum to the communication form No …, Technical Information: technical information regarding “Pause switch (yes/no)” will be no longer necessary.

Proposal to clarify the text in order to avoid misinterpretation.

ISO update on noise testing standard

Draft proposal to incorporate provisions for audible signals when a vehicle is in reverse gear, including specifications relative to ambient noise levels.

Proposal to update and clarify the text and to align the text with other UN Regulations and adopted proposals.

Presentation concerning the proposals to clarify and update the texts and to align their provisions and terms.

Objectives and procedures for an informal working group to further develop Annex 7 and otherwise improve UN R51.

Proposal as agreed within the GRB to update and clarify the regulation. The proposal refines definitions, removes the “AWD” abbeviation for “audible warning device” to avoid confusion with its more common use for “all wheel drive”, modifies some administrative communications, and proposes three-direction acoustic measurements. The proposal also aims to structure the regulation to enable its application to additional sound warning devices not presently regulated at the international level, excluding acoustic vehicle alerting systems (AVAS) which will be subject to a separate regulation on minimum vehicle sound levels.