Department of Climate, Energy and the Environment Any records - dating from 1 Jan 2021 to date - that relate to consideration of an appraisal of the current provisions in the Air Pollution Act 1987 to determine if they are fit for purpose regarding the delegation of powers to local authorities for the introduction of clean air zones or low emission zones and identification of any potential amendment necessary, including, but not limited to, any internal and external correspondence, or internal reports.