Over several years, the European Union (EU) has gradually developed its legal framework to assist in the proper application of EU environmental protection rules, both at Member State as well as at EU institutional levels. This article focuses on one particular and relatively recent emerging element of that supranational framework, namely the range of EU secondary legislative measures and provisions concerning the management of environmental inspections. In addition to appraising the extent of EU legislative engagement in relation to environmental inspections, this article reflects on certain challenges of a constitutional nature that the EU will need to address in the future if its intervention in this particular policy field is to continue to develop.