The following is a list of committee and subcommittee appointments held by Senator Nelson including years served. For committee appointments the list is complete, but subcommittee assignments included in the list are based on length of time served on the subcommittee, the amount of activity during service, and the personal interest of Nelson. As a result, all of Nelson's subcommittee assignments are not listed. For a complete list consult the Congressional Staff Directory, Indianapolis, Ind.: Bobbs-Merrill Company, 1963-1980.

Finance Committee (1971-1980)

• Health Subcommittee (1977-1980)
• International Trade Subcommittee (1973-1975, 1977-unknown)
• Private Pension Plans Subcommittee, Chairman (1973-1975)
• Social Security Subcommittee, Chairman (1977-1980)

Interior and Insular Affairs Committee (1963-1970, 1974)

• Minerals, Materials, and Fuels Subcommittee (1963-1968, 1974)
• Parks and Recreation Subcommittee (1965-unknown, 1974)
• Public Lands Subcommittee (1964, 1969, 1974)
• Territories Subcommittee (1963-unknown)

Labor and Public Welfare (became Human Resources) (1965-1980)

• Employment, Poverty, and Migratory Labor Subcommittee (also known as Employment and Manpower, also known as Employment, Poverty, and Manpower) (1965-1980)
• Chairman (1969-1980)
• Health Subcommittee (1969-1980)
• Labor Subcommittee (1965-1976?)
• Migratory Labor Subcommittee (1965-1970)
• Veterans' Affairs Subcommittee (1965-1968)

Public Works Committee (1963-1965)

Select Committee on Nutrition and Human Needs (1971-1972, 1974)

Select Committee on Official Conduct (1977)

Select Committee on Small Business (1965-1980), Chairman (1976-1980)

• Monopoly Subcommittee (1965-1978), Chairman (1967-1978)