IRREGULARITY: any infringement of a provision of Community law resulting from an act or omission by an economic operator which has, or would have, the effect of prejudicing the general budget of the European Union by charging an unjustified item of expenditure to the general budget.

• any act or deliberate omission involving the use or presentation of false, incorrect or incomplete statements or documents, which has as its effect the misappropriation or wrongful retention of funds from the general budget of the European Communities or budgets managed by, or on behalf of, the European Communities;
• non-disclosure of information in violation of a specific obligation, with the same effect;
• the misapplication of such funds for purposes other than those for which they were originally granted.