The Centre's panel tasked with improving air quality in Delhi-NCR has raised concerns over the slow resolution pace and the growing backlog of air pollution-related complaints in the national capital. Among various steps, the Commission for Air Quality Management (CAQM) has directed intensified efforts to remove highly polluting end-of-life (EoL) vehicles (petrol vehicles older than 15 years and diesel vehicles older than 10 years) that are still in use in Delhi..