This instrument makes necessary changes to a number of pieces of Northern Ireland environmental protection legislation, which arise as a result of the UK leaving the European Union. The changes are to legislation covering waste management and air and environmental quality control, for which the Department of Agriculture, Environment and Rural Affairs has responsibility. The amendments, made under section 8 of the European Union (Withdrawal) Act 2018, are mostly minor and technical operability changes that amend secondary domestic legislation which transposes EU Directives into Northern Ireland law. This instrument also modifies the interpretation of EU Directives to remove post-EU exit inoperabilities.