++++ FREE MOVEMENT OF GOODS - QUANTITATIVE RESTRICTIONS - MEASURES HAVING EQUIVALENT EFFECT - OBLIGATION OF PRODUCERS OF POULTRY OFFAL TO DELIVER IT TO APPROVED RENDERING PLANTS - COMPATIBILITY WITH THE TREATY AND THE COMMON ORGANIZATION OF THE MARKETS - CONDITIONS - PROHIBITION OF EXPORTS OF OFFAL - DISPROPORTIONATE MEASURE ( EEC TREATY, ARTS 30, 34 AND 36; REGULATION NO 827/68 OF THE COUNCIL, ART . 4, AND COUNCIL REGULATION NO 2777/75, ART . 11 )