How long is an emissions inspection certificate valid once issued?

An emissions inspection certificate is valid for 12 months once issued. This validity period ensures that vehicles are regularly checked for compliance with emissions standards, promoting air quality and environmental protection. By requiring an annual inspection, the program encourages timely identification and rectification of any emissions-related issues, thus ensuring that vehicles remain within acceptable emissions limits over an extended period. This approach helps maintain consistency in vehicle emissions monitoring and contributes to the overall effectiveness of emissions control efforts.