TO THE MAIN ACTION ARE CONCERNED , IN THE NATURE OF A STEP IN THE ACTION PENDING BEFORE THE NATIONAL COURT , THE DECISION ON COSTS IS A MATTER FOR THAT COURT .
Operative part
ON THOSE GROUNDS ,
THE COURT ( THIRD CHAMBER ),
IN ANSWER TO THE QUESTIONS REFERRED TO IT BY THE BUNDESSOZIALGERICHT BY ORDER OF 25 OCTOBER 1979 , HEREBY RULES :
1 . ARTICLE 20 ( 1 ) AND ARTICLE 23 ( 1 ) AND ( 3 ) OF REGULATION NO 3 APPLY TO SOCIAL SECURITY BENEFITS OF THE KIND WITH WHICH ARTICLE 1244A OF THE GERMAN LAW ON SOCIAL INSURANCE ( THE REICHSVERSICHERUNGSORDNUNG ) IS CONCERNED , IRRESPECTIVE OF THE FACT THAT A WORKER AFFILIATED TO THE PENSION INSURANCE SCHEME IS AT THE SAME TIME INSURED UNDER THE OFFICIAL GERMAN SICKNESS INSURANCE SCHEME AND MAY CLAIM AN ENTITLEMENT TO BENEFITS UNDER THAT SCHEME REGARDLESS OF THE PLACE OF TREATMENT .
2 . WHERE SEVERAL INSTITUTIONS OF THE SAME MEMBER STATE ARE COMPETENT INSTITUTIONS FOR THE PURPOSES OF ARTICLE 20 ( 1 ) AND ARTICLE 23 ( 1 ) AND ( 3 ) OF REGULATION NO 3 IT IS FOR THE NATIONAL LAW TO DETERMINE HOW , IN THE CONTEXT OF RELATIONS BETWEEN THE INSTITUTIONS CONCERNED , THE ALLOCATION OF THE COST OF THE REIMBURSEMENT PROVIDED FOR BY ARTICLE 23 ( 1 ) AND ( 3 ) OF THAT REGULATION IS TO BE REGULATED .