60. The expert from CLEPA introduced GRVA-04-27 presenting the Electric Mechanical Brakes technology and the necessary changes in UN Regulation No. 13 to accommodate this technology. The expert from the Netherlands stated that such a proposal would also affect Annex 14 of UN Regulation No. 13. The expert from CLEPA answered that they only considered motor vehicles so far and not trailers. The Chair recalled previous discussions of Working Party on Brakes and Running Gear (GRRF) concerning Electronic Braking Control Systems. He recalled that GRRF had recognised that energy levels in batteries did not reduce linearly or predictably and had therefore agreed on electric control lines (with pneumatic redundancy) but not electric energy lines. He therefore asked whether CLEPA had considered redundancies. GRVA agreed to continue this discussion at its next session.