Member of Federal Bar Association, American Bar Association, Puerto Rico Bar Association, District of Columbia Bar Association, Association Labor Relations Practitioners Puerto Rico and VI.
Bachelor of Science in Business and Finance, University Pennsylvania, 1954. Bachelor of Laws, Boston University, 1957. Master of Laws, University Virginia, 1984.
Master of Public Administration, University Puerto Rico, 1984. MSt, Oxford University, 2003. Doctor of Laws (honorary), St. John's University, 1995.
Doctor of Laws (honorary), Roger Williams University, 1995.
Judge United States District Court Puerto Rico, San Juan, 1974—1982, chief judge, 1982—1984. Judge United States Court Appeals (1st circuit), since 1984, chief judge, 1994—2001. Former member judicial conference committee Administration Federal Magistrate Systems, former member judicial conference executive committee.
Former member judicial conference committee International Judicial Relations.