Document ID: chunk:federal_register_of_legislation:F2023C00919:body:0:p55
Version: federal_register_of_legislation:F2023C00919
Segment Type: other
Provision Reference: 
Character Range: 165460–168873

be different from that prescribed.
6.6.                                    Hazard warning signal
6.6.1.                              Presence
Mandatory.
The signal shall be given by simultaneous operation of the direction-indicator lamps in accordance with the requirements of paragraph 6.5. above.
6.6.2.                              Number
As specified in paragraph 6.5.2.
6.6.3.                              Arrangement
As specified in paragraph 6.5.3.
6.6.4.                              Position
6.6.4.1.                        Width:               As specified in paragraph 6.5.4.1.
6.6.4.2.                        Height:  As specified in paragraph 6.5.4.2.
6.6.4.3.                        Length: As specified in paragraph 6.5.4.3.
6.6.5.                              Geometric visibility
As specified in paragraph 6.5.5.
6.6.6.                              Orientation
As specified in paragraph 6.5.6.
6.6.7.                              Electrical connections
6.6.7.1.                        The signal shall be operated by means of a separate manual control enabling all the direction-indicator lamps to flash in phase.
6.6.7.2.                        The hazard warning signal may be activated automatically in the event of a vehicle being involved in a collision or after the de-activation of the emergency stop signal, as specified in paragraph 6.23. In such cases, it may be turned "off" manually.
In addition, the hazard warning signal may be switched on automatically to indicate to other road-users the risk of imminent danger as defined by Regulations; in this case, the signal shall remain switched "on" until it is manually or automatically switched "off".
6.6.7.3.                        On M1 and N1 vehicles less than 6 m in length, with an arrangement complying with paragraph 6.5.5.2. above, the amber side-marker lamps, when mounted, shall also flash at the same frequency (in phase) with the direction-indicator lamps.
6.6.8.                              Tell tale
Flashing circuit-closed tell-tale mandatory.
6.6.9.                              Other requirements
As specified in paragraph 6.5.9., if a power driven vehicle is equipped to draw a trailer the hazard warning signal control shall also be capable of bringing the direction indicator lamps on the trailer into action. The hazard warning signal shall be able to function even if the device which starts or stops the engine is in a position which makes it impossible to start the engine.
6.7.                                    Stop lamp (Regulation No.7)
6.7.1.                              Presence
Devices of S1 or S2 categories:  mandatory on all categories of vehicles.
Devices of S3 or S4 category:  mandatory on M1 and N1 categories of vehicles, except for chassis-cabs and those N1 category vehicles with open cargo space; optional on other categories of vehicles.
6.7.2.                              Number
Two S1 or S2 category devices and one S3 or S4 category device on all categories of vehicles.
6.7.2.1.                        Except in the case where a category S3 or S4 device is installed, two optional category S1 or S2 devices may be installed on vehicles in categories M2, M3, N2, N3, O2, O3, and O4.
6.7.2.2.                        Only, when the median longitudinal plane of the vehicle is not located on a fixed body panel but separates one or two movable parts of the vehicle (e.g. doors), and lacks