In document GRSG/2014/4, Hungary proposed to delete the provision that emergency windows shall be capable of being operated from outside the vehicle. This document provides a written justification for the proposal to enable its formal approval by GRSG.

Proposal to redefine the measurement criteria for determining appropriate seat spacing in order to address observed cases where adequate spacing is not achieved even though the current criteria are fulfilled. The type approval authorities of the member states of the European Union (TAAM) discussed the proper interpretation of the text of the Regulation in the case of seats with a central recess (sunken area) and decided that the text of the Regulation needed to be modified in order to provide an adequate method to measure the H dimension.

Proposal to introduce fire suppression systems for buses and coaches upon detection of fire in the engine and/or heater compartment.

Proposal for a new paragraph 7.6.5.2. in Annex 3 to clarify that deactivation of emergency controls at speeds lower than 5 km/h should be permitted taking into consideration that the opening in emergency is ensured according to the provisions of paragraph 7.6.5.1. Paragraph 7.6.5.2. is renumbered and amended to correct the speed at which the control has to be reactivated. The amended paragraphs align the requirements to those on overnight-locking systems.