Order of the Supreme Court of India in the matter of M. C. Mehta Vs Union of India & Others dated 15/06/2020 regarding steps to control vehicular pollution. A bunch of cases on similar matters were clubbed together and heard by Justices Arun Mishra and S. Abdul Nazeer. The cases ranged from registration of diesel vehicles/machines/equipments of North Delhi Municipal Corporation (NDMC), East Delhi Municipal Corporation (EDMC) for public purpose to registration of BS-IV vehicles.

Public Sector Oil Marketing Companies (OMCs) have informed that there are 33 (Thirty Three) established cases of adulteration of petrol and diesel in the country during last three years and current year (April- December, 2019). OMCs take acion as per Marketing Discipline Guidelines (MDG) and Dealership agreement against retail outlet dealers where cases of adulteration are established as per the provisions of Marketing Discipline Guidelines and Dealership Agreement subsisting between RO dealer and OMC.

Diesel car sales are in free fall. The Dieselgate scandal caused a collapse in customer confidence exacerbated by increasing restrictions on diesel car use in cities. In an attempt to ensure past investments in diesel technology can provide a return, the car industry claim new diesel cars are now "clean".

Order of the National Green Tribunal (Southern Zone, Chennai) in the matter of Lawyers’ Environmental Awareness Forum (LEAF) Vs Government of Kerala & Others dated 06/01/2020 regarding air pollution especially vehicular pollution in Kerala. There was no policy formulation on the issue of curbing the use of diesel vehicles which are more than ten years old in the state, the application stated.

An increasing number of countries, including mainland China, are considering enforcing emission regulations for in-use diesel vehicles via remote sensing, a promising technology that measures exhaust emissions from a large number of on-road vehicles without interrupting traffic.

Order of the Supreme Court of India in the matter of M. C. Mehta Vs Union of India & Others dated 04/11/2019 regarding pollution in Delhi and NCR region especially compounded by stubble burning.

Apex Court comes down heavily on the authorities saying "in spite of various directions issued by High Court, other authorities including this Court the State Governments, Government of NCT of Delhi and the corporations of Delhi and nearby States are not performing their duties as enjoined upon them."

Order of the National Green Tribunal in the matter of Justice A. K. Roopanwal (Retd.) & Others Vs State of Uttar Pradesh & Others dated 22/10/2019 regarding Presidium School and Indirapuram Habitat Centre using diesel generator sets creating air and noise pollution at Indirapuram, Ghaziabad in violation of the Air (Prevention and Control of Pollution) Act, 1981. Diesel was being stored in painting drums in open which was life threatening.

This matter is regarding the placement of stickers on all vehicles in NCR, which would be colour coded based on the fuel used. This colour-coding of vehicles would then be used to identify vehicles that run on diesel fuel and during high pollution days, these vehicles could be asked to stop plying on roads.

This new report by ICCT assesses global progress in 2019 toward reducing black carbon emissions from diesel on-road light-duty and heavy-duty vehicles.

Order of the Supreme Court of India in the matter of M. C. Mehta Vs Union of India & Others dated 13/09/2019 regarding measures to control air pollution in Delhi.

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