• ●The Commission for Air Quality Management in National Capital Region and Adjoining Areas is a statutory body created by the CAQM Act, 2021, passed on 12 August 2021; it first came into being through an Ordinance in October 2020.
• ●The Commission replaced the Environment Pollution (Prevention and Control) Authority, which had operated in the NCR since 1998.
• ●'Adjoining areas' under the Act means areas in Haryana, Punjab, Rajasthan and Uttar Pradesh whose pollution sources affect NCR air quality; the Commission's orders override those of state pollution control boards in this field.
• ●The CAQM Standard Framework for paving and greening of urban roads targets road dust, a major contributor to particulate pollution in Delhi.
• ●CSIR-Central Road Research Institute was established in 1952 in New Delhi as a constituent laboratory of CSIR, working on road and runway design, traffic planning, bridges and geotechnics.
• ●The training was delivered to engineers of the Public Works Department, Government of NCT of Delhi, at the NDMC Convention Centre; CRRI's Director, Dr Ch. Ravi Sekhar, delivered the inaugural address.
• ●Road network planning under the framework follows Indian Roads Congress guidelines, and covers carriageway standards, pedestrian walkways and non-motorised transport.
• ●The Graded Response Action Plan is the CAQM-notified emergency schedule of curbs that tightens by air quality index stage in the NCR.

The Commission for Air Quality Management in National Capital Region and Adjoining Areas replaced which earlier body?