6.5.7.

Electrical connections
Direction-indicator lamps shall switch ON independently of the other lamps. All direction-indicator lamps on one side of a vehicle shall be switched ON and OFF by means of one control and shall flash in phase.
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.
[A direction indicator capable of being activated in different modes (static or sequential), shall not switch between both modes once activated.
If two optional lamps (category 2a or 2b) are installed on vehicles in categories M2, M3, N2, N3, they shall be operated in the same mode as the other mandatory rear direction indicator lamps (category 2a or 2b); i.e. static or sequential.] #the paragraph between [] has probably been cancelled by mistake by 07 Series (Amend.10).

 a10c0
6.5.7. Electrical connections
Direction-indicator lamps shall switch on independently of the other lamps. All direction-indicator lamps on one side of a vehicle shall be switched on and off by means of one control and shall flash in phase.
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.
A direction indicator capable of being activated in different modes (static or sequential), shall not switch between both modes once activated.
If two optional lamps (category 2a or 2b) are installed on vehicles in categories M2, M3, N2, N3, they shall be operated in the same mode as the other mandatory rear direction indicator lamps (category 2a or 2b); i.e. static or sequential. 		a5c0
6.5.7. Electrical connections
Direction-indicator lamps shall switch on independently of the other lamps. All direction-indicator lamps on one side of a vehicle shall be switched on and off by means of one control and shall flash in phase.
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. 		a0c0