GRAP 1 restrictions, bans in Delhi: Impact on cars, trucks, PUC certificate, hotels, restaurants, construction

The Commission for Air Quality Management imposed Stage-I measures because Delhi’s air quality deteriorated sharply. The AQI rose from 179, classified as moderate, on October 20 to 244, classified as poor, at 2 pm on October 21. Since Stage-I applies when AQI reaches the poor range, CAQM activated it across Delhi-NCR.

The measures target major pollution sources and everyday violations. Authorities must enforce valid Pollution Under Control certificates, act against visibly polluting vehicles, enforce restrictions on overage vehicles, and divert non-destined trucks through peripheral expressways. Construction sites, industries, eateries, and buses must also follow pollution-control rules.

The restrictions are designed to limit additional emissions while air quality is poor. Residents are advised to avoid idling, use public transport or carpool, and report violations. The article does not give a date for lifting Stage-I, so continued enforcement depends on subsequent air-quality conditions.

GRAP Stage-I is the first level of the Graded Response Action Plan. It applies when the AQI reaches the poor range of 201–300. Its purpose is to reduce pollution through coordinated restrictions before air quality worsens further. CAQM invoked it after Delhi’s AQI reached 244.

Authorities must enforce PUC rules, penalise or impound visibly polluting vehicles, and apply restrictions on overage petrol and diesel vehicles. Non-destined trucks must be diverted around Delhi. Construction sites must control dust, while hotels, restaurants, and open eateries must stop using coal- or firewood-fuelled tandoors. Buses must be electric, CNG, or BS-VI diesel.

Residents must keep vehicles tuned, maintain tyre pressure, avoid idling, and switch engines off at red lights. They should use public transport or carpool, avoid open burning, segregate waste, and report violations through the listed apps. The measures combine enforcement with everyday pollution reduction.

Delhi’s AQI increased by 65 points, rising from 179 on October 20 to 244 at 2 pm on October 21. The earlier reading was labelled moderate, while the later reading was labelled poor. This sharp change triggered Stage-I GRAP measures across Delhi-NCR.

The article identifies AQI categories as pollution bands. It specifically defines the poor range as 201–300. Therefore, 244 falls within that range, while 179 remains below it and was classified as moderate. The labels matter because they determine when progressively stronger pollution-control actions are activated.

The change shows how quickly air quality moved into a level requiring coordinated intervention. Authorities were directed to enforce vehicle, construction, fuel, and industrial controls. Residents were also asked to reduce emissions and report violations. The article does not provide the full numerical range for the moderate category, so only its classification of 179 is stated here.

Stage-I GRAP affects several categories of vehicles. Authorities must strictly enforce valid Pollution Under Control certificates and act against visibly polluting vehicles. Action can include penalties or impounding. Existing restrictions on overage petrol and diesel vehicles must also continue.

Public and freight transport face specific rules. Inter-city and interstate buses operating in Delhi-NCR must be electric, CNG, or BS-VI diesel. Non-destined trucks passing through Delhi must be diverted via the Eastern and Western Peripheral Expressways. These rules target vehicle emissions and reduce through-traffic within the city.

Drivers are advised to keep engines tuned, maintain tyre pressure, and avoid driving end-of-life or visibly polluting vehicles. They should switch off engines at red lights and avoid idling. The article does not specify the exact age threshold for overage vehicles or the penalties for each violation, so those details are not stated.

Stage-I GRAP does not prohibit all construction. Instead, sites must control dust and follow prescribed requirements. Construction and demolition projects on plots of 500 square metres or more cannot proceed if they are not registered on the relevant monitoring portal or fail to meet the required conditions.

Sites must cover construction materials and waste during storage and transport. They must use water sprinklers and anti-smog guns when required, and regulate regular collection and proper disposal of construction waste. Hotels, restaurants, and open eateries must stop using coal- and firewood-fuelled tandoors.

Those establishments must switch to electricity, gas, or another permitted clean-fuel appliance. These rules aim to limit dust and smoke while air quality is poor. The article also prohibits open burning of biomass and municipal solid waste. It does not specify a deadline for compliance or explain how long these restrictions will remain.

The Commission for Air Quality Management coordinates pollution controls across the Delhi-NCR region. In this case, it imposed Stage-I measures after Delhi’s AQI rose to 244, placing air quality in the poor category. Its action creates a common response across the region rather than leaving separate authorities to act independently.

CAQM’s directions cover transport, construction, fuel use, and industry. Authorities must enforce PUC requirements, act against visibly polluting vehicles, divert non-destined trucks, and enforce overage-vehicle restrictions. Buses must meet specified fuel or emissions standards. Construction sites and eateries must also follow dust and clean-fuel rules.

The Commission’s role therefore includes identifying the response level and directing enforcement of multiple pollution controls. Residents and businesses are given duties alongside government authorities. The article does not describe CAQM’s internal structure or list every participating agency, but it shows the Commission coordinating measures across Delhi-NCR during poor air quality.

Vehicle exhaust adds pollutants to the air, especially when vehicles are visibly polluting, poorly maintained, or left idling. Construction can release dust when materials and waste are uncovered or transported without controls. These sources are why Stage-I requires PUC enforcement, tuned vehicles, covered materials, sprinklers, and anti-smog guns.

Open burning of biomass and municipal solid waste produces smoke and harmful pollutants. Coal- and firewood-fired tandoors also release smoke during cooking. The article therefore prohibits open burning and requires hotels, restaurants, and open eateries to use electricity, gas, or other permitted clean fuels.

These controls do not remove every pollution source, but they reduce emissions from activities authorities can regulate immediately. Industries, brick kilns, hot-mix plants, and diesel generators must also meet pollution-control requirements. The article does not quantify each source’s contribution, so it supports the control measures without ranking their individual effects.