Legislation Help Desk
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Authorised Weight Regulations |
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Maximum Vehicle Weights - Rigids
| Axles |
Max.GVW(kg) |
| 2 |
18,000 |
| 3 |
25,000 |
| 3 |
26,000* |
| 4 |
30,000 |
| 4 |
32,000* |
| * with the driving axle(s) fitted with twin tyres and road friendly suspension, or if each axle is fitted with twin tyres and each axle does not exceed 9500kg maximum weight |
Maximum Axle Weights - Rigids
| |
(kg) |
| Sole driven axle |
11,500 |
| Single non-drive axle |
10,000 |
| Driving tandem axle; |
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| (a) Fitted with either twin tyres and road friendly suspension or each drive axle is fitted with twin tyres and no axle exceeds 9500kg in weight |
19,000 |
| (b) Not complying with (a) |
18,000 |
| Tri-axle |
24.000 |
Maximum Vehicle Weights - Tractors
| No. Axles |
Max.GVW(kg) |
| 2 |
18,000 |
| 3 |
25,000 |
| 3 |
26.000 * |
| * with the driving axle(s) fitted with twin tyres and road friendly suspension, or if each axle is fitted with twin tyres and each axle does not exceed 9500kg maximum weight |
Maximum Axle Weights - Tractors
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(kg) |
| Sole driven axle |
11,500 |
| Single, non driven axle |
10,000 |
| Driving tandem axle; |
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| (a) Fitted with either twin tyres and road friendly suspension or each drive axle is fitted with twin tyres and no axle exceeds 9500kg in weight |
19,000 |
| (b) Not complying with (a) |
18,000 |
Maximum Weights - Drawbar Trailers
Maximum GTW for vehicle and drawbar trailer combination:
| No. of axles |
GTW(kg) |
| 3 |
22,000 |
| 3 |
26,000 (d) |
| 4 |
30,000 |
| 4 |
36,000 (d) |
| 5 |
34,000 |
| 5 |
40,000 (d) |
| 6 |
41,000 (b)(d) |
| 6 |
44,000 (b) (c) (d) |
| (b) |
To operate at 41,000 or 44,000kg the following must apply: -each drive axle must not exceed 10,500kg, and either drive axle is fitted with twin tyres and road friendly suspension or each non steered drive axle is fitted with twin tyres and each axle does not exceed 8500kg |
| (c) |
To operate at 44,000kg the vehicle must be fitted with a low pollution engine Euro2 or better |
| (d) |
To operate at these weights the distance between the rear axle of the vehicle and the front axle of the trailer must be at least 3m. |
Maximum Axle Weights - Semi-Trailers
| |
(kg) |
| Non driving tandem axle |
20,000 |
| Tri-axle |
24.000 |
Maximum Weights Tractor & Semi-Trailer
Maximum GCW for vehicle and semi-trailer combination:
| No. of axles |
GCW(kg) |
| 3 |
26,000 |
| 4 |
36,000 |
| 4 |
38,000 (a) |
| 5 |
40,000 |
| 6 |
41,000 (b) |
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6 |
44,000 (b)(c) |
- To operate at 38,000kg the vehicle must consist of:
- a 2 axle tractor and 2 axle semi-trailer
- the tractor must not exceed 18,000kg
- the weight of the axles of the semi-trailer must not exceed 20,000
- the drive axle is fitted with twin tyres and road friendly suspension
- To operate at41,000 or 44,000kg the following must apply
- each drive axle must not exceed 10,500kg, and either drive axle is fitted with Iwin tyres and road friendly suspension or each non steered drive axle is fitted with Iwin lyres and each axle does not exceed 8500kg
- To operate at 44,000kg the vehicle must be fitted with a low pollution
- engine Euro2 or better
- To operate at these weights the distance between the rear axle of the
- vehicle and the front axle of the trailer must be at least 3m.
Factor to determine Maximum Authorised weight - Rigids, Tractors, Trailers & Articulated Vehicles
| |
(kg) |
| Rigid vehicle with: |
| 2 axles |
6,000 |
| 3 axles |
5,500 |
| 4 or more |
5,000 |
| Tractor unit with: |
| 2 axles |
6,000 |
| 3 or more |
6,000 |
| Trailer, not being a semi-trailer or centre axle trailer with: |
| 2 axles |
6,000 |
| 3 or more |
5,000 |
| Articulated vehicle with 3 or more axles |
5.500 |
These weights are determined by the number of axles and the authorised weight is the number equal to the product of the distance measured in metres between the first and last axle of the vehicle (for articulated vehicles the distance measured is from the kingpin to the centre of the last axle of the semi-trailer) multiplied by the factor specified and rounded up to the nearest 10kg, if that number is less than the maximum authorised weight.
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