1 . SOCIAL SECURITY FOR MIGRANT WORKERS - FAMILY ALLOWANCES - GRANT TO PERSON ENTITLED TO PENSION IN ONE MEMBER STATE - PROFESSIONAL OR TRADE ACTIVITY OF SPOUSE IN ANOTHER MEMBER STATE - ENTITLEMENT TO FAMILY ALLOWANCES IN THAT STATE - COMMUNITY RULE AGAINST OVERLAPPING - CONDITIONS FOR APPLICATION ( REGULATION NO 1408/71 OF THE COUNCIL , ART . 79 ( 3 )) 2 . SOCIAL SECURITY FOR MIGRANT WORKERS - COMMUNITY RULES - PURPOSE - CO-ORDINATION OF NATIONAL SCHEMES - CONSEQUENCES 3 . SOCIAL SECURITY FOR MIGRANT WORKERS - FAMILY ALLOWANCES - GRANT TO PERSON ENTITLED TO PENSION IN ONE MEMBER STATE - PROFESSIONAL OR TRADE ACTIVITY CARRIED ON IN ANOTHER MEMBER STATE - ENTITLEMENT TO FAMILY ALLOWANCES IN THAT STATE - COMMUNITY RULE AGAINST OVERLAPPING - APPLICATION - DETAILED ARRANGEMENTS ( REGULATION NO 1408/71 OF THE COUNCIL , ART . 79 ( 3 ))