How can I check if my car in Delhi is BS VI compliant?

Your vehicle's registration certificate (RC) will indicate BS compliance. Vehicles registered after April 1, 2020, are usually BS VI compliant.

What are the new rules for vehicles entering Delhi?

Non-BS VI private vehicles registered outside Delhi are banned. Fuel stations will only serve vehicles with a valid Pollution Under Control Certificate (PUCC).

Why is Delhi cracking down on older vehicles?

Older vehicles, especially diesel ones, emit higher levels of harmful pollutants like nitrogen oxides and particulate matter, significantly worsening Delhi's air quality.

Home / Environment / Delhi's Air Crisis: BS VI Norms Tighten Grip

Delhi's Air Crisis: BS VI Norms Tighten Grip

19 Dec, 2025

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Summary

Delhi restricts non-BS VI vehicles and requires PUCC for fuel.
Vehicles registered after April 1, 2020, are typically BS VI compliant.
Nearly 37% of Delhi-NCR vehicles use older, heavily polluting norms.

Delhi's Air Crisis: BS VI Norms Tighten Grip

Delhi has implemented tighter curbs on vehicular pollution, focusing on Bharat Stage (BS) emission norms. Non-BS VI private vehicles from outside the capital are now prohibited from entering, and fuel pumps will only dispense fuel to those with a valid Pollution Under Control Certificate (PUCC). This measure targets older, more polluting vehicles to improve the city's air quality.

For vehicle owners, BS compliance is indicated on the registration certificate (RC); vehicles registered on or after April 1, 2020, are typically BS VI compliant. Manufacturers may also note this in owner's manuals, and authorized dealerships can confirm. Older vehicles, particularly diesel models, emit significantly higher levels of harmful pollutants.

This enforcement comes as vehicular pollution is a major contributor to Delhi-NCR's air quality issues, with approximately 37% of vehicles in the region adhering to older, less stringent emission standards. BS VI norms significantly reduce nitrogen oxide and particulate matter emissions compared to previous standards like BS IV.