UN Regulation No. 144
Accident Emergency Call Systems

Series of Amendments, Supplements, and Corrigenda

53. The expert from the Russian Federation, chairing the IWG on AECS, recalled the detailed consideration of GRSG at its previous session of the new UN Regulation on AECS on the basis of ECE/TRANS/WP.29/GRSG/2017/12. He informed GRSG that the IWG had again reviewed the proposal to remove some editorial inconsistencies. He added that the latter ones have been taken into account in the official document ECE/TRANS/WP.29/2017/132 which was submitted to WP.29 and AC.1 for consideration at their November 2017 sessions. He concluded that further work needed to be done. As Secretary of the IWG on AECS, the expert from OICA introduced the revised justification document (GRSG-111-06-Rev.1) on draft UN Regulation on AECS. He reiterated his concern that Contracting Parties to the 1958 Agreement which intend to apply the Regulation should ensure the necessary infrastructure for the application of the new UN Regulation, once it enters into force.

54. GRSG reconfirmed its adoption of ECE/TRANS/WP.29/2017/132 and agreed to resume consideration on this subject at its forthcoming session, especially on the need for further developments to the new UN Regulation.

Proposal to:

1. clarify that the application of an AECD approval to other vehicle categories than M₁ and N₁ is not mandatory,
2. align the power supply requirement of Part III, para. 34.1 with the corresponding requirement in Part II, para. 25.1.
3. clarify with regard to para. 34.1 that if the vehicle is equipped with both
   • -a “back-power supply” as listed in para. 35.10.1 and
   • -a “Power supply other than back-up power supply mentioned in paragraph 35.10.1” as listed in para. 35.10.2
   both should be tested according to Annex 9. The “Power supply other than back-up power supply mentioned in paragraph 35.10.1” should indeed only be tested if it is the only power supply for the AECS.
4. include two-year transitional provisions
5. remove the exclusion of M₁ and N₁ not equipped with a side airbag and to specify that the AECS shall be able to output the navigation solution in an NMEA-0183 protocol format (RMC, GGA, VTG, GSA and GSV message), among other clarifications.

Proposal to clarify that UN R144 does not specify the frequency (number) of attempts or the duration of efforts to establish a network connection (voice or data transmission) for automatic emergency call systems. This proposal has been deferred to the June 2020 WP.29 session.

Proposal to correct erroneous references (to annexes in the regulation as well as to UN R94 and R95) in the text and to correct an inconsistency in the text (paragraph 26.7.2. refers to situations where the AECS is not equipped with a back-up power supply; however, the subparagraph 26.7.2.3. refers to an AECS with a back-up power supply).

GRSG proposal to clarify that UN R144 excludes assessment of the frequency or duration of re-establishing a voice communication and retrying data transmission.