. NEW DELHI: The Commission for Air Quality Management (CAQM) on Saturday reimposed GRAP-IV in Delhi-NCR after the region’s air quality slipped into the ‘severe’ category. This comes a day after GRAP-III was enforced as a precautionary measure. The region has been grappling with high pollution levels for several months. GRAP-IV had earlier been lifted in late December.GRAP Stage IV is triggered when the Air Quality Index (AQI) exceeds 450, reaching the ‘severe+’ category. The commission clarified that measures under Stage I, Stage II, and Stage III of the existing GRAP will continue as per the modified GRAP issued on November 21, 2025.Under Stage IV, private vehicle movement is not completely banned. Restrictions are largely based on emission norms and fuel type. Vehicles meeting the prescribed standards are allowed to operate, while older vehicles face stricter curbs. BS-III petrol and BS-IV diesel vehicles are prohibited from plying in Delhi-NCR during this phase, except those providing essential services.About the AuthorTOI News DeskThe TOI News Desk comprises a dedicated and tireless team of journalists who operate around the clock to deliver the most current and comprehensive news and updates to the readers of The Times of India worldwide. With an unwavering commitment to excellence in journalism, our team is at the forefront of gathering, verifying, and presenting breaking news, in-depth analysis, and insightful reports on a wide range of topics. The TOI News Desk is your trusted source for staying informed and connected to the ever-evolving global landscape, ensuring that our readers are equipped with the latest developments that matter most.”Read MoreEnd of ArticleFollow Us On Social MediaVideos‘BJP Won By Betrayal’: Uddhav Thackeray’s First Reaction On Mumbai Civic Poll ResultsShashi Tharoor Sees Hope Amid Iran Silence, Warns Of Uncertainty As Protests Slow Under BlackoutPM Modi Targets Mamata, Declares ‘Asli Poribortan’ In Malda, Says Bengal Needs BJP For Development‘Protecting Rohingyas And Bangladeshis’: BJP MP Sambit Patra Slams Bengal CM Mamata BanerjeePM Modi Flags Off India’s First Vande Bharat Sleeper Train Between Howrah-Guwahati In BengalEurope Looks East As Italian Envoy Bartoli Calls India Key Partner Amid Global Chaos And Trade WarsWhy Donald Trump’s Gaza Peace Board Has Indian-Origin Former Banker And Padma Shri Ajay BangaArunachal Pradesh: 1 Tourist Dead, Another Missing As Ice Cracks On Frozen Sela LakeReza Pahlavi Highlights India As Key Partner For A Democratic Iran In Energy Technology And TradePakistan PM Shehbaz Sharif Vows To Defeat Terrorism Amid Lashkar And Jaish’s Terror Threats To India123Photostories10 fiber-rich broccoli dishes for a filling dinnerFrom a luxurious house worth Rs 2.5 crore in Mumbai to car collection- Sunil Grover’s lavish lifestyleWinter Special: How to make Spinach Rice for dinnerTravel influencer Shenaz Treasury recommends these 6 places women must travel to in 2026; safe, stunning and solo-friendlyBigg Boss Tamil 9: From wild card to finalist—Divya’s emotional and eventful journey inside the house5 places around the world that witness the largest animal gatherings’Border 2′: Real life inspirations for Sunny Deol, Varun Dhawan and Diljit Dosanjh’s roles revealed7 simple habits to make kids respect and listen to you10 traditional and regional Indian biscuits perfect for evening chaiJim Carrey birthday special: Top films streaming on OTT you should not miss123Hot PicksMaharashtra Election ResultsBudget 2026Gold rate todayBank holiday todayVande Bharat sleeperPublic holidays January 2026Bank Holidays JanuaryTop TrendingGracie HuntTravis KelceU19 World CupRyan O’ReillyLebron JamesMaharashtra Civic Poll WinnersConnor McDavidBengaluru EngineerMegan Thee StallionRafael Nadal Net Worth

. NEW DELHI: The Commission for Air Quality Management (CAQM) on Saturday reimposed GRAP-IV in Delhi-NCR after the region’s air quality slipped into the ‘severe’ category. This comes a day after GRAP-III was enforced as a precautionary measure. The region has been grappling with high pollution levels for several months. GRAP-IV had earlier been lifted in late December.GRAP Stage IV is triggered when the Air Quality Index (AQI) exceeds 450, reaching the ‘severe+’ category. The commission clarified that measures under Stage I, Stage II, and Stage III of the existing GRAP will continue as per the modified GRAP issued on November 21, 2025.Under Stage IV, private vehicle movement is not completely banned. Restrictions are largely based on emission norms and fuel type. Vehicles meeting the prescribed standards are allowed to operate, while older vehicles face stricter curbs. BS-III petrol and BS-IV diesel vehicles are prohibited from plying in Delhi-NCR during this phase, except those providing essential services.About the AuthorTOI News DeskThe TOI News Desk comprises a dedicated and tireless team of journalists who operate around the clock to deliver the most current and comprehensive news and updates to the readers of The Times of India worldwide. With an unwavering commitment to excellence in journalism, our team is at the forefront of gathering, verifying, and presenting breaking news, in-depth analysis, and insightful reports on a wide range of topics. The TOI News Desk is your trusted source for staying informed and connected to the ever-evolving global landscape, ensuring that our readers are equipped with the latest developments that matter most.”Read MoreEnd of ArticleFollow Us On Social MediaVideos‘BJP Won By Betrayal’: Uddhav Thackeray’s First Reaction On Mumbai Civic Poll ResultsShashi Tharoor Sees Hope Amid Iran Silence, Warns Of Uncertainty As Protests Slow Under BlackoutPM Modi Targets Mamata, Declares ‘Asli Poribortan’ In Malda, Says Bengal Needs BJP For Development‘Protecting Rohingyas And Bangladeshis’: BJP MP Sambit Patra Slams Bengal CM Mamata BanerjeePM Modi Flags Off India’s First Vande Bharat Sleeper Train Between Howrah-Guwahati In BengalEurope Looks East As Italian Envoy Bartoli Calls India Key Partner Amid Global Chaos And Trade WarsWhy Donald Trump’s Gaza Peace Board Has Indian-Origin Former Banker And Padma Shri Ajay BangaArunachal Pradesh: 1 Tourist Dead, Another Missing As Ice Cracks On Frozen Sela LakeReza Pahlavi Highlights India As Key Partner For A Democratic Iran In Energy Technology And TradePakistan PM Shehbaz Sharif Vows To Defeat Terrorism Amid Lashkar And Jaish’s Terror Threats To India123Photostories10 fiber-rich broccoli dishes for a filling dinnerFrom a luxurious house worth Rs 2.5 crore in Mumbai to car collection- Sunil Grover’s lavish lifestyleWinter Special: How to make Spinach Rice for dinnerTravel influencer Shenaz Treasury recommends these 6 places women must travel to in 2026; safe, stunning and solo-friendlyBigg Boss Tamil 9: From wild card to finalist—Divya’s emotional and eventful journey inside the house5 places around the world that witness the largest animal gatherings’Border 2′: Real life inspirations for Sunny Deol, Varun Dhawan and Diljit Dosanjh’s roles revealed7 simple habits to make kids respect and listen to you10 traditional and regional Indian biscuits perfect for evening chaiJim Carrey birthday special: Top films streaming on OTT you should not miss123Hot PicksMaharashtra Election ResultsBudget 2026Gold rate todayBank holiday todayVande Bharat sleeperPublic holidays January 2026Bank Holidays JanuaryTop TrendingGracie HuntTravis KelceU19 World CupRyan O’ReillyLebron JamesMaharashtra Civic Poll WinnersConnor McDavidBengaluru EngineerMegan Thee StallionRafael Nadal Net Worth


Pollution crisis: GRAP-IV reimposed in Delhi-NCR; air quality slips to ‘severe’ category

NEW DELHI: The Commission for Air Quality Management (CAQM) on Saturday reimposed GRAP-IV in Delhi-NCR after the region’s air quality slipped into the ‘severe’ category. This comes a day after GRAP-III was enforced as a precautionary measure. The region has been grappling with high pollution levels for several months. GRAP-IV had earlier been lifted in late December.GRAP Stage IV is triggered when the Air Quality Index (AQI) exceeds 450, reaching the ‘severe+’ category. The commission clarified that measures under Stage I, Stage II, and Stage III of the existing GRAP will continue as per the modified GRAP issued on November 21, 2025.Under Stage IV, private vehicle movement is not completely banned. Restrictions are largely based on emission norms and fuel type. Vehicles meeting the prescribed standards are allowed to operate, while older vehicles face stricter curbs. BS-III petrol and BS-IV diesel vehicles are prohibited from plying in Delhi-NCR during this phase, except those providing essential services.



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