New Delhi, May 15 -- The Commission for Air Quality Management (CAQM) on Friday announced a phased rollout mandating only electric 3-wheelers of the L5 category for registration across the National Capital Region (NCR), while also tightening fuel rules for vehicles without valid pollution certificates.

The National Capital Territory of Delhi will implement the rule from January 1, 2027, followed by the High Vehicle Density districts of NCR, Gurugram, Faridabad, Sonipat, Ghaziabad and Gautam Budh Nagar, from January 1, 2028, and all remaining districts of NCR from January 1, 2029.

With a view to curbing air pollution caused by vehicles operating without a valid Pollution Under Control Certificate (PUCC) in Delhi-NCR, the Commission, in e...