Check Your Vehicle

Your vehicle can be tested at one of 175 fixed/semi-fixed/mobile testing stations around the country. Follow the simple procedure below to ensure a pleasant and smooth experience:

  1. Run your vehicle to its peak operating temperature. We advise at least 25-minutes of moderate driving to achieve this.
  2. Once you arrive at the DriveGreen testing station, pay your fees and collect receipt that is issued.
  3. Keep your vehicle’s engine running as you proceed through the queue towards testing booth.
  4. Present the receipt to the Vehicle Inspector.
  5. At this stage, you may either move to the Passenger’s Seat or choose to wait in the designated waiting area until your vehicle completes all tests.
  6. You may view the vehicle’s progress through the remote monitor.
  7. At the conclusion of the testing process, you will be advised of the emission compliance status of your vehicle.
  8. If your vehicle passed the test, you will be issued with a Sri Lanka Vehicle Emission Test Certificate, which you must present when renewing your Annual Revenue License.

If you have any questions about the Testing and Certification process, please Contact Us.

CleanCo Lanka Ltd.
CategoryNew Price Including
NBL 3% + VAT
Motor Cycle – Petrol410.00
Motor Cycle – Diesel410.00
Motor Tricycle – Petrol505.00
Motor Tricycle – Diesel505.00
Light Land Vehicle – Petrol505.00
Light Land Vehicle – Diesel505.00
Motor Car – Petrol1100.00
Motor Car – Diesel1100.00
Dual Purpose vehicle/ Van – Petrol1190.00
Dual Purpose vehicle/ Van – Diesel1190.00
Motor Lorry – Petrol1550.00
Motor Lorry – Diesel1550.00
Motor Coach – Petrol1010.00
Motor Coach – Diesel1010.00
Bus- Petrol1000.00
Bus- Diesel1000.00
Prime Movers1650.00

Original certificate of registration (CR) or original vehicle identity card (VIC) along with your vehicle.But if your vehicle is leased then you can do it from a CR or VIC copy which is certified by your leasing company


  • Make sure where your engine numbers and chassis numbers are located and legible.
  • Make sure that your silencer does not have holes or beaters connected.
  • Make sure no leakage of oil & water.
  • Make sure no excessive smoke.
  • Make sure gas cap condition is good.
  • Make sure fan belts are in good condition.
  • Make sure no unusual vibration & noises.
  • If newly repaired engine make sure minimum recommended mileage is run.(for diesel vehicle)
  • Once in line for testing, turn off all accessories (air conditioner, lights, wipers, heater, radio, etc.)
  • Clean or replace air filter & fuel filter.
  • Inspect and clean or replace spark plugs & wires,
  • Adjust air-fuel ratio.
  • Inspect and adjust the choke.
  • Check EGR valve, Lambda sensor for proper installation and functional operation.
  • Check vacuum hoses for cracks, leaks or blockage and repair or replace as required.
  • Repair or replace system parts as required.


  • Run least 30 min before the test in a reasonable speed to heat your engine. Until your vehicle reaches normal operating temperature, it emits excess pollutants.
  • To remove carbon particles in the exhaust system. Flush your diesel vehicle exhaust system three times by pressing the accelerator your vehicle rapidly few times.
  • Turn off all accessories when testing. (Air conditioner, lights, wipers, heater, radio, etc.)
  • While in line, do not shut off engine. This helps to keep the engine at normal operating temperature.
  • Clean or replace air filter & fuel filter.
  • Clean the silencer.
  • Check the injector nozzle condition & mismatch.
  • Check for fuel injector fouling or mismatch and repair or replace as required.
  • Adjust or repair turbocharger.
  • Examine governor, fuel rack and injector timing for possible adjustment.
  • Check the fuel pump.
  • Repair or replace system parts as required.

” These steps are provided only as a reference/guidance.”

Reasons For Fail Four Stroke Motor Cycles, Three-Wheels, Cars

1. Air Cleaner.

  • Clogged Air cleaner.
  • Used for long period than recommended time/ mileage.
  • Inappropriate Air cleaners. (ex: Diesel vehicle’s air cleaner used for petrol vehicle)
  • Plenty of oil in air cleaner element. ( for Bikes and 3-wheelers)
  • Leaks in the induction hoses or ducts. (for EFI vehicles)

2. Spark Plug.

  • Used for long period than recommended time/mileage.
  • Not using manufacturer recommended model of spark plug.
  • Damaged spark plug/s.
  • Not properly tightened Spark Plug/s. (Specially for cars)
  • Bad Plug top/Plug wires.

3. Carburetor/Fuel Injection system.

  • Incorrect modification of the carburetor. (ex: incorrect jets sizes, jet types)
  • Incorrect adjustments. (Air, fuel, floater level)
  • Carburetors with Clogged ports, jets.
  • Improperly seated carburetor. (Packing, loosen screws, rubber boot)
  • Defective Sensors. (ex: MAP sensor, air flow/mass Sensor, Lambda sensors )
  • Defective actuators. (ex: solenoids, Stepper motors)
  • Clogged fuel injectors. ( Only for EFI vehicles)
  • Blocked throttle-body, air measurement lines, and actuator air lines. (Only for EFI vehicles)

4. Ignition System.

  • Defective Ignition coil/ Pickup coil.
  • Defective C-B points/CDI unit.
  • Defective high-tension wires.

5. Other

  • Worn Engine.
  • Excessive oil added to petrol.( For 2-stroke vehicles only)
  • Excessive Engine oil level.
  • Clogged PCV (Positive Crank-case Ventilation) valve.
  • Defective EGR (Exhaust Gas Recirculation Valve) Valve.
  • Improper sealed valve seats, Gasket.
  • Incorrect valve/ignition timing.
  • Low fuel quality.
  • Incorrect Silencer modifications.