In a notable development, the Uttar Pradesh Pollution Control Board (UPPCB) has stated that only piped natural gas (PNG)- based industries will function in Noida and Ghaziabad from October 1, 2022. The factories which do not start using PNG after September 30, 2022 will be forced to shut operations. This move has been made following a directive from the Commission for Air Quality Management (CAQM) regarding  pollution level checks in National Capital Region (NCR). CAQM had also referred to an order by the Uttar Pradesh government to inspect industries that use PNG supply and ensure they do not use any polluting fuel like coal and diesel. There are 1,207 industries in Noida and 1,900 units in Ghaziabad.