5. The expert from the United Kingdom, Chair of the informal working group on UN GTR No. 7 Phase 2, informed GRSP on the work progress of the group:

• (a) The group is expecting to submit an informal document for discussion at the May 2012 session of GRSP, concerning the regulatory text of GTR No.7 Phase 2, including the Biofidelic Rear Impact Dummy II (BioRID II), namely calibration, seating position, etc.
• (b) The definition of injury criteria progressed well. Nevertheless, concerns remain regarding the reproducibility of the rotational movement of the dummy’s head compared to the cadaver.
• (c) A method to measure the physical height of the head restraint is expected to be submitted as an informal document to the May 2012 session of GRSP.

6. The expert from Japan complemented this information by introducing the third status report of the informal working group (GRSP-50-31). The expert from the United Kingdom invited GRSP experts to provide comments to be incorporated in an updated version of the status report to be submitted to the March sessions of WP.29 and AC.3. He also informed GRSP that the next meeting of the informal working group was planned for in London at the beginning of March 2012.

7. GRSP noted that WP.29, at its November 2011 session while discussing the 1958 Agreement, agreed with the approach of indexing the information for test devices as an annex to the Consolidated Resolution on the Construction of Vehicles (R.E.3.). Accordingly, the expert from the United Kingdom introduced, for information, a first proposal (GRSP-50-26 and GRSP-50-27) on the basis of some BioRID II technical data.

The expert from Germany expressed concerns on the possible transposition of a future UN GTR on the same subject into the 1958 Agreement. GRSP recommended experts to send further comments in due time to the expert from the United Kingdom to allow him to prepare an updated proposal to the March 2012 session of WP.29 for consideration.