Owners of Bharat Stage VI (BS-VI) compliant private vehicles under six years old may soon benefit from a significant reduction in their Pollution Under Control (PUC) certificate renewal frequency. The Ministry of Road Transport and Highways (MoRTH) has issued a draft notification proposing that these newer, cleaner cars would only require a PUC certificate every three years, a substantial change from the current annual requirement.
Graded Approach to Emission Checks
The proposed change introduces a graded emission check schedule, designed to acknowledge the advanced emission control technologies present in modern vehicles. Under the draft rules, BS-VI private vehicles up to six years old would need a fresh PUCC once every three years. Vehicles between six and ten years old would face more frequent checks, while older vehicles, including BS-IV models (which currently require renewal every six months) and BS-I, BS-II, and BS-III vehicles (every three months), would continue with their existing, more stringent monitoring cycles.
Why BS-VI Vehicles Are Different
India's Bharat Stage norms align with European emission standards, setting strict limits on pollutants like carbon monoxide, hydrocarbons, nitrogen oxides, and particulate matter. The country made a significant leap by skipping BS-V and transitioning directly to BS-VI from April 1, 2020. This transition mandated oil companies to supply ultra-low sulphur fuel (10 parts per million of sulphur, down from 50 ppm in BS-IV) and required vehicles to incorporate advanced onboard diagnostics and exhaust treatment systems.
These technological advancements ensure that BS-VI vehicles continuously monitor engine performance and maintain pollution levels within prescribed limits. Compared to BS-IV models, BS-VI vehicles achieve dramatically reduced emissions, especially in diesel variants, which see significant cuts in nitrogen oxide and particulate matter.
Next Steps for the Proposal
Currently, the proposal remains in its draft stage, and the government has invited public feedback before issuing a final notification. If implemented, this change is expected to alleviate the compliance burden for millions of private vehicle owners across the country, recognizing their investment in cleaner automotive technology while maintaining robust environmental safeguards.