Legislation Help Desk
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C & U Regulations |
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Maximum Vehicle Weights - Rigids
Driving axle(s) must have Iwin lyres and road-friendly suspension or no axle exceeds a weight of 9,500kg
| Axles |
Outer axle spread (metres) |
Max.GVW(kg) |
| 2 |
less than 2.65 |
14,230 |
| 2 |
at least 2.65 |
16,260 |
| 2 |
at least 3.0 |
17,000 |
| 3 |
less than 3.0 |
16,260 |
| 3 |
at least 3.0, less than 3.2 |
18,290 |
| 3 |
at least 3.2, less than 3.9 |
20,330 |
| 3 |
at least 3.9, less than 4.9 |
22,360 |
| 3 |
atleast4.9, less than 5.2 |
25,000 |
| 3 |
at least 5.2 |
26,000 |
| 4 |
at least 5.2, less than 6.4 |
Distance (m) from front to rear axle x 5,000kg rounded to nearest 10kg |
| 4 |
at least 6.4 |
32,000 |
Maximum Axle Weights - Rigids
| |
Max.GVW(kg) |
| Sole driven axle with wide lyres or twin tyres |
10,500 |
| Other axles with wide tyres ortwin tyres |
10,170 |
| Other axle with single lyres |
9,200 |
| Bogie with two axles less than 1.3 metres apart |
16,000 |
| Bogie with two axles at least 1.3 metres apart
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18,000 |
| Bogie with two axles at least 1.3 metres apart and with driving axles on twin lyres and: |
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| with both axles have road-friendly suspension |
19,000 |
| neither closely spaced axle exceeds 9,500kg |
19,000 |
Maximum Axle Weights - Trailers
| Bogie with three axles where smallest distance between any two axles is less than 1.3 metres |
21,000 |
| Bogie with three axles where smallest distance between any two axles is at least 1.3 metres and: |
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| At least one axle does not have air suspension |
22,500 |
| All three axles are fitted with air suspension |
24,000 |
| Four closely spaced axles, not over4.6m spread |
24,000 |
Maximum Vehicle Weights - Tractors
| No. |
Outer Axle |
Intermediate |
Max. |
| Axles |
Spread (m) |
Axle (kg) |
GVW (kg) |
| 2 |
at least 2.0 |
|
14,230 |
| 2 |
at least 2.4 |
- |
16,260 |
| 2 |
at least 2.7 |
- |
17,000 |
| 3 or more |
at least 3.0 |
8,390 |
20,330 |
| 3 or more |
at least 3.8 |
8,640 |
22,360 |
| 3 or more |
at least 4.0 |
10,500 |
22,500 |
| 3 or more |
at least 4.3 |
9,150 |
24,390 |
| 3 or more |
at least 4.9 |
10.500 |
24.390 |
Maximum Axle Weights - Tractors
| |
(kg) |
| Sole driven axle with wide or twin tyres |
10,500 |
| Other axle with single tyres |
9,200 |
| Other single axle fitted with twin or wide tyres |
10,170 |
| Two closely coupled axles less than 1.3 m apart |
16,000 |
| Two closely spaced axles at least 1.3 m apart |
18,000 |
| Two closely spaced axles at least 1.3 m apart |
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| and drive axles with road friendly suspension or |
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| neither has an axle weight exceeding 9500kg |
19,000 |
Maximum Axle Weights - Semi-Trailers
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(kg) |
| 2 axles less than 1.3 metres apart |
16,000 |
| 2 axles at least 1.3 metres, less than 1.5m apart |
18,000 |
| 2 axles at least 1.5 metres, less than 1.8m apart |
19,320 |
| 2 axles at least 1.8 metres apart |
20,000 |
| 3 axles maximum 7500 kg per axle and non road friendly suspension |
22,500 |
| 3 axles maximum 8000kg per axle with air suspension |
24,000 |
Maximum Tractor & Semi-Trailer GCW
Minimum distance between rearmost axles on tractor and trailer
| Tractor with |
Tractor with at least |
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| 2 axles (m) |
3 axles (m) |
(kg) |
| 2.0 |
2.0 |
20,330 |
| 2.2 |
2.2 |
22,360 |
| 2.6 |
2.6 |
23,370 |
| 2.9 |
2.9 |
24,390 |
| 3.2 |
3.2 |
25,410 |
| 3.5 |
3.5 |
26,420 |
| 3.8 |
3.8 |
27,440 |
| 4.1 |
4.1 |
28,450 |
| 4.4 |
4.4 |
29,470 |
| 4.7 |
4.7 |
30,490 |
| 5.0 |
5.0 |
31,500 |
| 5.3 |
5.3 |
32,520 |
| 5.5 |
5.4 |
33,000 |
| 5.8 |
5.6 |
34,000 |
| 6.2 |
5.8 |
35,000 |
| 6.5 |
6.0 |
36,000 |
| 6.7 |
6.2 |
37,000 |
| 6.9 |
6.3 |
38,000 |
Maximum Tractor & Semi-Trailer GCW
The preceding limits are subject to the overriding restrictions:
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Max.GCW(kg) |
| 1. Tractor unit and semi-trailer with 5 or more axles in total |
38,000 |
| 2. Tractor unit with 2 axles and 2 axle semi-trailer being used for international transport |
35,000 |
| 3. Tractor unit with 2 axles and twin tyres fitted to every drive axle, and every drive axle is fitted with road friendly suspension and a semi-trailer with 2 axles |
35,000 |
| 4. Articulated vehicle having a total of 4 axles not coming within 2 or 3 above |
32,520 |
| 5. Tractor unit as in 3 above and a semi-trailer with 1 axle |
26,000 |
| 6. Tractor unit with 2 axles and a semi-trailer with 1 axle not coming within 5 above |
25.000 |
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