Council Member, City of Las Vegas, Nevada, District 3, 2011-present

Senator, Nevada State Senate, 1986-2010

Alumni Advisor, Sigma Alpha Epsilon, University of Nevada, Las Vegas, 1984-1986

Assembly Member, Nevada State Assembly, 1982-1985

National Committeeman, Young Democrats of Nevada, 1977-1978

President, University of Nevada, Las Vegas, Alumni Association, 1974

Member, Nevada Commission on Sports

Member, Advisory Council for Community Notification Concerning Sex Offenders, 1999-2000

Chair, Legislative Commission's Information Technology Subcommittee, 1999-2000

Member, Host Committee for National Conference of State Legislatures, 1998

Chairman, Host Committee for Council of State Governments-West, 1993

Vice Chair, Senate Committee on Finance, 1991

Chair, Senate Committee on Taxation, 1991

Member, Governors Commission on Drinking and Driving, 1987-1989

Member, Task Force on Regulation of Homes of Multiple Occupancy, 1988-1989

Member, Nursing Care Task Force, 1988

Chair, Assembly Committee on Transportation, 1983

International Observer, Nicaraguan Elections

Owner, Bob Coffin Books, 1989-Present

Owner, Bob Coffin Insurance, 1969-Present

Served, United States Army Reserves, 1962

Member, Committee on the Southern Border, Council of State Governments-West, present

Member, Las Vegas Chamber of Commerce, present

Member, National Association of Latino Elected Officials, present

Member, National Conference of State Legislatures, present

Member, University of Nevada, Las Vegas Alumni Association, present

Member, Booksellers Association of Southern Nevada, Present

Member, Sigma Alpha Epsilon

Board of Directors, Latin Chamber of Commerce of Nevada, 1986-1998

Governing Board Member, Clark County Health Systems Agency, 1985-1986

Member, National Conference of State Legislatures, Delegation to Costa Rica, 1985

President, Nevada Golf Club Association, 1973-1974