1 . SOCIAL SECURITY FOR MIGRANT WORKERS - RIGHTS OF INSTITUTIONS RESPONSIBLE FOR BENEFITS AGAINST LIABLE THIRD PARTIES - INSTITUTION - MEANING ( REGULATION NO 1408/71 OF THE COUNCIL , ART . 1 ( N ) AND ART . 93 ) 2 . SOCIAL SECURITY FOR MIGRANT WORKERS - COMMUNITY REGULATIONS - MATTERS COVERED - ' ' INDUSTRIAL AGREEMENTS ' ' - EXCLUSION ( REGULATION NO 1408/71 OF THE COUNCIL , ART . 1 ( J ))