Delhi has moved to the strictest stage of its anti-pollution framework with the implementation of Stage IV of the Graded Response Action Plan (GRAP), as air quality in the national capital continues to remain in the severe category. The emergency measures have been enforced by the Commission for Air Quality Management (CAQM) to curb hazardous winter pollution levels.
The decision comes after the Air Quality Index (AQI) repeatedly crossed the severe threshold, driven by a mix of stagnant weather conditions, vehicular emissions, firecracker residue and stubble burning in neighbouring regions.
Schools and offices face major restrictions
Physical classes for students from nursery to Class 5 have been completely suspended, with learning shifting online. Earlier, parents were given the option to choose between online and offline modes, but that flexibility has now been withdrawn.
For Classes 6 to 9 and Class 11, schools are operating in a hybrid mode, allowing students to attend classes online if they choose.
Both government and private offices have been directed to function with only 50 per cent staff present on-site. The remaining workforce must work from home. Authorities have also urged private employers to allow flexible working hours wherever possible.
Vehicle entry and fuel rules tightened
From December 18, only Bharat Stage-VI (BS-VI) compliant vehicles are permitted to enter Delhi. All non-BS-VI vehicles are effectively barred from the city during this period.
In addition, vehicles without a valid Pollution Under Control (PUC) certificate will not be allowed to refuel at petrol pumps. Automated camera systems installed at fuel stations will identify and flag non-compliant vehicles.
Construction, demolition and tandoors halted
All construction and demolition activities have been suspended, including large linear public infrastructure projects such as highways, roads, flyovers, power transmission lines, pipelines and telecom works.
Restaurants and eateries have also been instructed to stop using coal and firewood-based tandoors. Only electric or gas-operated tandoors are permitted, with strict enforcement mandated.
What continues to operate under GRAP IV
Despite the restrictions, essential services and key transport systems remain functional.
- Public transport, including Delhi Metro and DTC buses, continues to operate, with residents encouraged to rely on these modes.
- LNG, CNG, electric and BS-VI diesel trucks are allowed to enter the city.
- Airports and railway stations across the country remain operational, subject to visibility conditions.
- Emergency and essential services such as hospitals, fire services, electricity, water supply, sanitation, disaster management and municipal services are fully exempted.
- Departments involved in air pollution monitoring, control and enforcement are also excluded from the restrictions.
Authorities have appealed to residents to cooperate with the measures, stressing that the restrictions are necessary to prevent further deterioration in air quality during the peak winter pollution period.