Use of lanes based on the Signed speed and those reserved for certain vehicles and maneuvers.

Article 35. Use of lanes based on the Signed speed and those reserved for certain vehicles and maneuvers.
1. The use of lanes based on speed and those reserved for certain vehicles and maneuvers are indicated by the corresponding signals [Title IV].
2. High occupancy vehicles means those cars exclusively for the transport of people, whose MAM does not exceed 3,500kg, that are occupied by the number of people as specified in paragraph d) of this section. The rules for high occupancy vehicle (VAO) lanes are as follows:
a) Use of a VAO lane is limited to motorcycles, cars and car-derived vans and therefore prohibits other vehicles including cars with trailers, pedestrians, cycles, mopeds, draft vehicles and animals.
VAO lanes may be used by authorized vehicles as stated in the previous paragraph, even if only occupied by the driver, if the vehicle displays signal V-15, and by buses with MAM over 3,500kg, regardless of the number of occupants, under the same conditions as in paragraph d.
b) Reservation of one or several lanes for VAO may be permanent or temporary, with fixed hours or based on traffic density, specified by the competent authority and, that in certain circumstances and for reasons of safety or ease of traffic flow may allow, recommend or order other vehicles to use VAO lane.
c) Emergency services and highways maintenance vehicles may use the VAO lanes.
d) Competent authorities will determine the sections of the road network in which lanes reserved for VAO will operate and will fix their conditions of use. This will be published in the form set out in Article 39,4.
3. Infractions of the rules in paragraph 2 are very serious offences (LST Art 65.5.f)).