During vehicle submergence, at least 1 window per row of seats shall be able to be opened to allow occupant escape, and shall remain openable for at least 2 minutes from water entry. The vehicle shall be lowered into a water-filled container within a 10-degree horizontal angle in X longitudinal and lateral directions. T0 is counted from when lowering straps slacken and the vehicle floats. After 2 minutes of floating, the window must be opened to its lowest position, or automatically lowered if equipped with automatic window lowering system. Alternative sub-system tests demonstrating window opening functionality under water, in agreement with the approval authority and its designated technical service, are acceptable. The test is fulfilled if the window is open to its lowest position after the test.

Proposal to establish a submergence test procedure requiring that at least one window per row of seats be capable of being fully opened after a vehicle enters water for occupant escape, with the window operable up to 2 minutes after submergence as designed by the manufacturer, defining container dimensions to accommodate the vehicle without wall or floor contact during the 2-minute period except when fully submerged, permitting open-water test sites provided they comply with test conditions while prohibiting freshwater lakes, reservoirs, and saltwater bodies, requiring the master control switch position allow window operation, specifying unladen kerb mass with measuring apparatus not changing axle reference load by more than 5 per cent, lowering the vehicle into water-filled container at horizontal angle 0–10 degrees with time zero defined as when lowering straps become slack and vehicle floats freely, requiring the vehicle remain in water for 2 minutes from time zero without floor contact until fully submerged, requiring window operation by remote system after 2 minutes with vehicle immersed, and permitting alternative subsystem tests demonstrating window opening functionality under submerged conditions.

Advances in LED lighting raise the prospects for incorporation of lighting into rear registration plates. In 2004, in response to a proposal for the regulation of such plates under UN R48, GRE determined that illuminated plates were not lamps and therefore were outside the scope of UN R48. The Spanish delegation would like to submit this issue again for the consideration of GRE members in order to have a coordinated and common view on this subject.

Technical services have reported difficulties in interpreting the requirements and procedures incorporated in the 02 series of amendments to UN R90. Therefore, this submission proposes a special interest group to consider whether an informal working group may be needed to revised UN 92.02.

Overview of special interest group discussions on replacement brake discs and drums, as well as on replacement brake pads and calipers (especially remanufactured).

Proposal to add replacement brake components for L₆ and L₇ (quadricycles) to the regulation, to correct references, and to clarify the text. This proposal aligns UN R90 with UN R78 (motorcycle braking).

Question on whether it is possible to approve a vehicle declared for no standing passengers as a Class II bus (as opposed to requiring approval as Class III which is specifically defined as a bus designed to carry only seated passengers).

Question of possible certification under UN Regulation No. 46.04 for an indirect device class I (interior mirror) acting as a taximeter.

Proposal to require measure(s) to prevent a bus or coach from moving while a lift or ramp is not in its stowed position.

Proposal to clarify that parts made of plastic glazing are required to undergo the tests described in Annexes 6 to 8 of UN R118.

Proposal to clarify that parts made of plastic glazing are required to undergo the tests described in Annexes 6 to 8 (testing to determine, respectively, the horizontal burning rate, melting behavior, and vertical burning rate of materials) of the Regulation. The clarification is to avoid misinterpretations that could lead to exemptions and therefore constitute a risk to safety.

Text to modify the consideration that the testing procedure is independent of the distance between the front axle and the foremost point of the vehicle. The reference point is the AHP.

Discussion paper on automatic fire suppression systems for the compartment where the internal combustion engine propelling the vehicle related to the risk of Boiling Liquid Expanding Vapor Explosion.

Spain on behalf of the BLEVE IWG under WP.15 introduced a first draft (GRSG-127-05-Rev.1) of new requirements and test methods for
automatic fire suppression systems in the engine compartment of specific vehicles (ADR)

Proposal for amendment to the UN Regulation on the uniform technical prescriptions for the approval of vehicles used for the international carriage of dangerous goods by road with regards to its engine fire suppression system.