The present research paper analyses the EU general and mandatory sectoral legal framework on public procurement, arguing for its inhibiting effect on the EU-wide uptake of green public procurement. It explores de jure and de facto barriers to green public procurement, motivated by the need for a change in the business world towards more sustainable practices through preferably mandatory legal changes of EU corporate law. As the public procurement represents a strong nudge for a qualitative change in private market demand, accounting for a minimum of 12% of the national gross domestic product, it should become environmentally sustainable itself and guide markets through the qualitative and quantitative changes on the demand side. Given the complexity of the current legal framework and the novelty of the approach to public procurement as a strategic tool for the achievement of sustainable production and consumption, a better defined and clear legislative approach is called for, possibly in a mandatory form, clarifying the obligation of public procurers to account for sustainability in their practices, especially as regards incorporating environmental concerns in their purchasing activities. In its current form, the EU legislative public procurement framework entails a seemingly permissive attitude towards green public procurement, hampered in practice by the existing legal institutes in the field, which hamper the strategic use of public procurement and thereby its influence on sustainability on the private markets.
