A Commission Directive of 23.9.1993 extends the time limits which were established for putting certain Community environmental rules into effect in the former German Democratic Republic. The time limits were laid down in Council Directive 90/656/EEC of 4.12.1993 in order to provide time for the ex-DDR territories to improve manufacturing practices to meet the minimum environmental standards required by the Community. However, it has become clear that the degree of obsolescence of the industrial production units in the territories concerned, the damaging discharges from them, and the environmental damage already caused, are far in excess of the evaluations made during the formulation of the Council Directive. These evaluations were made on the basis of the available information, which is now known to be incomplete, approximative, uncertain and unreliable. The present Commission Directive therefore provides a simplified procedure by which the Commission may authorize the extension to 31.12.1993 at the latest, of the deadlines for putting into effect the Community environmental-protection rules contained in the Council Directive.