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Truck, Semi-Trailer
- 1/27If a vehicle is designed to carry goods over 3.5 tons
Vehicles exceeding a certain weight threshold usually above 3.5 tons are legally defined as heavy vehicles and subject to stricter regulations.
When a vehicle exceeds 12 tons or has more than two axles
The vehicle must comply with legal limits on total mass and axle loads to prevent road damage and ensure safety.
At the time of vehicle registration
Authorities inspect height, width, and length to ensure the truck meets legal size standards before road use.
If a truck has a gross vehicle weight GVW below 3.5 tons
Trucks with a GVW under 3.5 tons are categorized as light vehicles and are not subject to heavy vehicle regulations.
When comparing light and heavy trucks
Due to their higher risk factors, heavy trucks must follow additional regulations, including inspections and permits.
At axle weight inspection stations
Weight per axle is checked to ensure the truck does not exceed safe limits that protect road surfaces.
If a bus is designed to carry more than 24 passengers
Buses carrying over 24 passengers are treated as heavy passenger vehicles and must follow heavy vehicle regulations.
When operating articulated lorries or trailers
Oversized or dangerous cargo demands special handling techniques and government-issued permits.
If your vehicle has three or more axles
The distance between axles and the distribution of load must follow regulations to prevent instability and road damage.
When driving a heavy vehicle on urban roads
Heavy vehicles may be restricted to certain roads or allowed to travel only during non-peak hours to reduce congestion.
At vehicle inspection centers
Inspections confirm the truck is mechanically safe and meets operational standards before it can operate.
If a light truck is used for commercial purposes
Trucks used for business must comply with commercial licensing, insurance, and operational regulations.
When a vehicle exceeds height or length regulations
Loads exceeding legal size, weight, or carrying hazardous materials need official permits to operate legally.
If a truck cargo is not properly secured
Operating a truck without required permits or exceeding legal limits is a severe traffic offense with heavy penalties.
At customs or border entry
Trucks crossing international borders must meet both local and foreign regulations, including customs and safety standards.
When transporting heavy or hazardous materials
Drivers of heavy or specialized vehicles must have additional training and endorsements for safe operation.
If you apply for a commercial driving licence in Oman
Only drivers who meet age, medical, and licensing requirements can legally operate heavy vehicles.
When planning routes for large vehicles
Heavy vehicles must not use roads with weight, height, or safety restrictions to avoid accidents and violations.
If a vehicle carries oversized or wide loads
Oversized loads require special permits and visible warning signs to alert other road users.
At high speeds or on gradients
Improperly secured loads can shift, affecting braking and steering, leading to dangerous situations.
When overtaking or merging in a heavy truck
Trucks need more room for turning, lane changes, and braking, requiring drivers to exercise increased caution.
If a heavy vehicle load extends beyond the bed
Overhanging cargo and oversized trucks must be marked with flags, reflectors, or lights for visibility.
When maneuvering large buses or lorries
Drivers must account for large blind spots and wide turn paths to prevent collisions.
At regular intervals
Regular inspections and maintenance keep heavy vehicles safe and compliant with legal standards.
If a heavy vehicle is involved in a collision
Drivers must adhere to strict safety procedures, including load securing, route compliance, and emergency handling.
When stopping a heavy truck on a slope
Properly tightened wheel nuts and maintained tires prevent wheel loss, blowouts, or road hazards.
If a trailer is attached to a vehicle
Trailer couplings must be correctly connected and meet legal standards to prevent detachment during travel.