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What are the vehicle emission inspection standards?

1 Answers

DelJack

07/29/25 9:29pm

Vehicle emission inspection standards: Carbon monoxide: A (700mg/km); B (500mg/km); Non-methane hydrocarbons: A (68mg/km); B (35mg/km); Nitrogen oxides: A (60mg/km); B (35mg/km); PM particulate matter: A (4.5mg/km); B (3mg/km). General process for vehicle emission inspection: 1. Information entry: The computer inputs information, registers vehicle details, and automatically assigns an inspection line based on vehicle characteristics. 2. Designated inspection line: Dispatchers direct staff to drive the vehicle to the assigned inspection line; supervisors cannot alter the inspection route. 3. Inspection line confirmation: The control room verifies if the vehicle has entered the correct inspection line; without confirmation, the next step cannot proceed. 4. Emission testing: Inspectors follow on-screen prompts to conduct the test correctly. Results are matched against standard values and uploaded to the server. 5. Payment: Finally, pay fees at the environmental inspection office. Non-compliant vehicles require rectification before retesting. Qualified vehicles receive an environmental certification mark.

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