Deputy attorney general administrative law California Department Justice, 1965-1969. Counsel California State Environmental Quality Study Council, 1969-1971. Deputy attorney general in charge environmental unit California Department Justice, 1971-1977.
General counsel Council Environmental Quality, Executive Office of President, Washington, 1977-1981. Visiting scholar Environmental Law Institute, 1981-1982. Senior attorney Center for Law in Public Interest, 1982-1985.
Partner Dickstein, Shapiro & Morin, 1985-1994, SNR Denton LLP, San Francisco, since 1994. United States director Law and Administration Project under United States-Union of the Soviet Socialist Republics environmental agreement, 1977—1981. Director President's Task Force on Global Resources and Environment, 1980—1981.
Mem United States Delaware to United Nations Conference on Environment and Development, Rio de Janeiro, 1992. Member & subcommittee chair California Environmental Protection Agency Blue Ribbon Commission on a Unified Environmental Statute, 1994. NEPA counsel Presidio Trust.
Captain United States Army, 1963-1965.
Member American Bar Association (chairman standing committee on environmental law 1989-1991, Disting Achievement award 2010), State Bar California (chairman committee on environmental 1975-1976), District of Columbia Bar Association (co-chairman environmental, energy and natural resources section 1985-1986, 88-89), Environmental Law Institute (board directors 1986-1992), United Nations Association Los Angeles (vice president 1969-1971), United Nations Association Washington (board directors 1987-1993).