Delhi GRAP IV revocation marks a significant shift in the city’s battle against air pollution, as the Commission for Air Quality Management (CAQM) lifted the most stringent vehicle restrictions after a modest improvement in the Air Quality Index (AQI). The decision, announced on Tuesday, comes just three days after the commission reinstated Stage‑IV limits when AQI spiked above 450, pushing Delhi into the “severe+” category.
Background/Context
Delhi and the National Capital Region (NCR) have been grappling with choking smog for months, with winter months historically exacerbating the problem. The Government Response to Air Pollution (GRAP) framework, introduced in 2019, sets four stages of restrictions based on AQI thresholds. Stage‑IV, the most restrictive, bans older vehicles (BS‑III petrol and BS‑IV diesel) except for essential services, while allowing newer, cleaner vehicles to operate.
In recent weeks, the AQI hovered around 440–450, a slight dip from the 470‑plus highs seen in late December. While the improvement was modest, it was enough for CAQM to reassess the need for Stage‑IV enforcement. The decision reflects a balance between public health concerns and the economic impact of vehicle bans on commuters and businesses.
Key Developments
CAQM’s order states that Stage‑IV restrictions are revoked but that Stages I, II, and III remain in force. Under these lower stages, vehicles are allowed to circulate based on emission standards and fuel type, with stricter limits on older, high‑polluting vehicles. The commission emphasized that the revocation is a temporary measure, urging citizens to adhere to the citizen charter under the lower stages to prevent a rebound in AQI.
According to the CAQM press release, the AQI in Delhi’s central districts fell to 432 on Monday, a 5% improvement from the previous day’s 455. “While the drop is encouraging, winter weather can quickly reverse gains,” said CAQM spokesperson R. K. Singh. “We are monitoring the situation closely and will re‑implement Stage‑IV if AQI crosses 450 again.”
In addition to vehicle restrictions, the commission highlighted ongoing measures such as the “Clean Delhi” campaign, which includes temporary shutdowns of construction sites, promotion of electric vehicles, and stricter enforcement of industrial emission norms. The revocation does not affect these ancillary initiatives, which continue to operate under the revised GRAP guidelines.
Impact Analysis
For commuters, the revocation means that older petrol and diesel cars can resume driving in most parts of the NCR, easing congestion and reducing travel costs. However, the city’s public transport system remains under strain, as buses and auto‑rickshaws still face restrictions under Stage‑III limits. Students and daily wage workers, who rely heavily on personal vehicles, may experience a temporary lift in mobility.
Health experts warn that even a 5% improvement in AQI may not translate into significant health benefits for vulnerable populations. “The lungs of children and the elderly are still exposed to high levels of particulate matter,” noted Dr. Anjali Mehta, a pulmonologist at AIIMS. “We need sustained reductions, not just short‑term dips.”
Expert Insights/Tips
Environmental scientist Prof. S. K. Rao advises residents to adopt practical measures: use masks rated N95 or higher, keep windows closed during peak pollution hours, and avoid outdoor exercise when AQI exceeds 300. He also recommends checking the Delhi Air Quality Index app daily to plan commutes. “If you can, use public transport or carpooling to reduce individual vehicle emissions,” he added.
For students and young professionals, the revocation offers a chance to reassess commuting habits. “Consider shifting to electric scooters or bicycles for short distances,” suggests mobility consultant Rohan Gupta. “The city’s e‑bike lanes are expanding, and subsidies are available for first‑time buyers.”
Looking Ahead
CAQM has set a review date for the end of January, after which the commission will reassess AQI trends and decide whether to reinstate Stage‑IV or maintain the current lower stages. The commission also plans to introduce a “Smart Vehicle Registry” to track compliance with emission norms more efficiently.
Meanwhile, the Delhi government is exploring additional measures such as expanding the “Zero‑Emission Zone” in the city center and incentivizing businesses to adopt cleaner technologies. “Our goal is to bring Delhi’s AQI below 200 by 2028,” said Delhi Pollution Control Board chief Arvind Kumar. “The revocation is a step, but not the finish line.”
Reach out to us for personalized consultation based on your specific requirements.