GB/T 15089-2001Classification of power-driven vehicles and trailers (English PDF)

3.1 Category L

Power-driven vehicles with two-wheels or three-wheels.

3.1.1 Category L1

A two-wheeled vehicle – if a thermic engine is used, its engine cylinder capacity does

not exceed 50 mL; and whatever the means of propulsion, the maximum design

speed does not exceed 50km/h.

3.2 Category M

Power-driven vehicles having at least four-wheels and used for the carriage of

passengers.

3.2.1 Category M1

Vehicles used for the carriage of passengers and comprising not more than eight

seats in addition to the driver's seat.

Note. For a multi-purpose passenger vehicle (see 2.1.1.8 of GB/T 3730.1-2001 for the

definition) in Category M1, if it simultaneously has two conditions of its definition, it will not be

Category M1 but Category N1, N2 or N3 according to its mass.

3.3 Category N

Power-driven vehicles having at least four-wheels and used for the carriage of goods.

3.4 Category O

Trailers (including semitrailers).

3.4.1 Category O1

Trailers with a maximum design total mass not exceeding 750 kg.

3.4.2 Category O2

Trailers with a maximum design total mass exceeding 750 kg, but not exceeding

3,500 kg.

3.4.3 Category O3

Trailers with a maximum design total mass exceeding 3,500 kg, but not exceeding

10,000 kg.

3.4.4 Category O4

Trailers with maximum design total mass exceeding 10,000 kg.

3.4.5 Trailers of Categories O2, O3 and O4 are of one of those specified in 2.2 of

GB/T 3730.1-2001.

3.4.6 Remark

In the case of a semitrailer or center-axle trailer (see 2.2.2 and 2.2.3 in GB/T

3730.1-2001), the mass to be considered, for classifying the trailer, corresponds to the

static vertical load that is transmitted to the ground by all axles, under the condition

that the semitrailer or center-axle trailer carries its maximum load and is coupled to

the towing vehicle.

3.5 Category G

It refers to the off-road vehicles of Categories M and N that satisfies the requirements

of this paragraph, according to the testing conditions in 3.5.4 and the definitions and

sketches in 3.5.5.

3.5.1 It refers to the vehicles in Category N1 with a maximum design total mass not

exceeding 2,000 kg; vehicles in Category M1 are deemed to be the vehicles in

Category G if they have.

3.5.2 Vehicles in Category N1 with a maximum design total mass exceeding 2,000

kg, or in Categories N2 and M2, or in M3 with a maximum design total mass not

exceeding 12,000 kg are deemed to be vehicles in Category G, either if all their

wheels are designed to be driven simultaneously (including vehicles where the drive

to one axle can be disengaged) or if the following three requirements are satisfied.

3.5.3 Vehicles in Category M3 with a maximum design total mass exceeding 12,000

kg or in Category N3 are deemed to be vehicles in Category G, either if the wheels are

designed to be driven simultaneously (including vehicles where the drive to one axle

can be disengaged) or if the following requirements are satisfied.

At least half the wheels are driven;

3.5.4 Load and test conditions

3.5.4.1 Vehicles in Category N1 with a maximum design total mass not exceeding

2,000 kg and vehicles in Category M1 must be in running order, namely, with coolant

fluid, lubricants, fuel, tools, spare-wheel and a driver.

3.5.4.2 Vehicles other than those referred to in paragraph 3.5.4.1, must be loaded to

the maximum design total mass.

3.5.4.4 When measuring front and rear incidence angles and ramp angles, no

account is taken of underrun protective devices.

3.5.5 Definitions and sketches of front and rear incidence angles, ramp angle and

ground clearance

3.5.5.1 Front incidence angle

It refers to the maximum angle between the ground plane and planes tangential to the

tires of the front wheel, under a static load, such that no point of the vehicle ahead of

the front axle is situated below these planes and no rigid part of the vehicle, with the

exception of any steps, is situated below these planes, see Figure 1.

Figure 1

3.5.5.2 Rear incidence angle

It refers to the maximum angle between the ground plane and planes tangential to the

tires of the rear wheels, under a static load, such that no point of the vehicle behind

the rearmost axle is below these planes and no rigid part of the vehicle is situated

below these planes, see Figure 2.

Figure 2

3.5.5.3 Ramp angle

It refers to the minimum acute angle between two planes, perpendicular to the

medium longitudinal plane of vehicle, tangential to the tires of the front wheels and to

the tires of the rear wheels respectively, under a static load, the intersection of which

touches the rigid underside of vehicle apart from the wheels. This angle defines the

steepest ramp over which the vehicle can pass, see Figure 3.

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