Delhi's Graded Response Action Plan (GRAP) to address winter air pollution has been activated early by the Commission for Air Quality Management, with stricter measures to be enacted when the air quality index (AQI) reaches severe levels. Buses from neighboring states will be barred unless they meet certain environmental standards, while specific exemptions apply to tourist buses. Meanwhile, Greater Manchester's updated Clean Air Plan will focus on a non-charging approach for drivers, investing £51 million in cleaner buses and extending timelines for depot electrification. The revised GRAP guidelines for Delhi aim to reduce vehicular pollution by increasing parking fees to discourage private vehicle use. These updates are based on daily AQI forecasts and aim to provide a more responsive strategy to air quality issues, particularly during the winter months. The GRAP has undergone multiple revisions since its inception in 2017 to adapt to changing environmental challenges.