1 . MEMBER STATES - OBLIGATIONS - FAILURE TO FULFIL OBLIGATIONS - JUSTIFICATION - NOT PERMISSIBLE ( EEC TREATY , ART . 169 ) 2.SOCIAL SECURITY FOR MIGRANT WORKERS - SICKNESS INSURANCE - CONTRIBUTIONS FROM PERSONS ENTITLED TO A PENSION - DEDUCTIONS FROM PENSIONS OF COMMUNITY NATIONALS RESIDING IN ANOTHER MEMBER STATE - NOT PERMISSIBLE ( REGULATION NO 1408/71 OF THE COUNCIL , ART . 33 )