The Centre has issued an advisory to states and union territories to phase out single-use plastic and contribute to improving the environment under the overarching mandate of "Clean and Green", a statement said on Saturday. According to the government, while 2,591 urban local bodies (ULBs) out of 4,704 have already reported notification of the single-use plastic ban as per the directions of the Central Pollution Control Board and the environment ministry, states and UTs will need to ensure that the remaining 2,100-plus ULBs notify the same by June 30, 2022.