GRAP 3 imposed in Delhi-NCR: What's allowed, what's not starting today

In response to escalating air pollution, Stage 3 of the Graded Response Action Plan (GRAP) has been enforced in Delhi-NCR starting at 8 a.m. today. The Commission for Air Quality Management (CAQM) announced the decision after air quality levels plunged into the "severe" category, with AQI readings exceeding 400 in several areas. These emergency measures aim to curb pollution and prevent further environmental deterioration.

GRAP 3 represents a set of anti-pollution actions activated when AQI reaches the 'Severe' range of 401–450. This stage includes some of the strictest measures to combat air pollution, focusing on reducing emissions from construction, vehicles, and industrial activities, as well as controlling dust and promoting cleaner alternatives.

A strict ban has been imposed on non-essential construction and demolition activities, with exceptions for projects critical to national security, healthcare, and public infrastructure. Vehicle restrictions prohibit the use of BS-III petrol and BS-IV diesel vehicles in Delhi and neighboring NCR districts like Gurugram, Noida, and Ghaziabad. Diesel generator sets are restricted to emergency purposes only, and industries operating with non-approved fuels are also banned.

Essential infrastructure projects such as metro and railway construction, airports, interstate bus terminals, and defense-related works are exempted under GRAP 3. Public infrastructure works like highways and pipelines and healthcare and sanitation facilities are also allowed, provided they comply with stringent dust control and waste management guidelines.

Alongside construction bans, tougher vehicle emission regulations have been enforced. BS-III petrol and BS-IV diesel vehicles are restricted, and diesel-operated medium goods vehicles (MGVs) and inter-state buses below BS-VI standards are barred from entering Delhi unless they transport essential goods. Non-electric and non-CNG inter-state buses also face entry bans.

Residents are urged to adopt eco-friendly practices to support the fight against pollution. Walking or cycling for short distances, using public transport or carpooling, avoiding biomass for heating, and combining errands to reduce vehicle use are strongly encouraged. Employers are advised to provide electric heaters to discourage open burning. Active participation from citizens can significantly aid in mitigating the severe air quality challenges faced by Delhi-NCR.