GRAP 4 restrictions in Delhi-NCR? Here's what's allowed and what is not when pollution levels cross 451 mark

The national capital woke up to a thick layer of toxic smog on Tuesday morning with an average Air Quality Index (AQI) at 341 at 7 am in the "very poor" category, according to the Central Pollution Control Board (CPCB).

The Commission for Air Quality Management (CAQM) has imposed GRAP-III in place to combat the rising pollution levels. However, the authorities are yet to impose GRAP-IV in the national capital.

The Air Quality Index has shown little to no improvement from Monday morning, when it was recorded at 351 at 7 am in the "very poor" category, according to CPCB data.

What does GRAP-IV mean?

The GRAP IV restrictions are imposed when the AQI crosses 451.

GRAP 4 restriction: what's allowed and what's not

1. Even for classes VI–IX and XI, the NCR State Governments and GNCTD may decide to stop holding in-person classes and instead teach online.
2. NCR State Governments/GNCTD will decide whether to permit 50% of employees in governmental, municipal, and private offices to work from home.
3. GRAP Stage 4 entails ban on diesel-run medium, heavy goods vehicles registered in Delhi (BS-IV or below), except those carrying essentials.
4. Entry of trucks into Delhi banned except for those carrying essential goods, services; LNG, CNG, electric, BS-VI diesel trucks allowed.
5. Prevent trucks from entering Delhi, unless they are transporting necessities or rendering necessary services. However, all trucks (LNG, CNG, electric, and BS-VI diesel) will be allowed entry into Delhi.
6. Ban of C & D activities, as in GRAP Stage 3, also for linear public projects such as highways, roads, flyovers, overbridges, power transmission, pipelines, etc.
7. State government may consider additional emergency measures like closure of colleges/educational institutions and closure of non-emergency commercial activities, permitting running of vehicles, and odd-even basis of registration numbers etc.
8. The Central Government has the authority to decide whether to allow its employees to work from home.