++++ FREE MOVEMENT OF GOODS - QUANTITATIVE RESTRICTIONS - MEASURES HAVING EQUIVALENT EFFECT - DIFFERENCES IN NATIONAL RULES ON THE MAXIMUM PERMITTED HEIGHT OF VEHICLES AND TRAILERS - OBSTACLE TO INTRA-COMMUNITY TRADE - DIRECTIVE 85/3 - APPLICATION OF NATIONAL RULES IN CONFORMITY WITH THE DIRECTIVE - WHETHER PERMISSIBLE ( EEC TREATY, ART . 30; COUNCIL DIRECTIVE 85/3 ) TRANSPORT - TRANSPORT BY ROAD - DIRECTIVE 85/3 - NATIONAL RULES ON THE MAXIMUM PERMITTED HEIGHT OF VEHICLES AND TRAILERS - RULES IN CONFORMITY WITH THE DIRECTIVE - NO RESTRICTION ON THE FREEDOM TO PROVIDE SERVICES ( EEC TREATY, ARTS 61 AND 75; COUNCIL DIRECTIVE 85/3 )