90th to 99th Congresses (1967–1987)
Sunday sessions are marked in bold.
| Congress and Year | 1st Session | 2nd session | 3rd Session* |
|---|---|---|---|
| 90th (1967-1969) | October 12, 1968 | ||
| 91st (1969-1971) | December 20, 1969 | December 19, 1970 | |
| January 2, 1971 | |||
| 92nd (1971-1973) | October 14, 1972 | ||
| 93rd (1971-1973) | January 9, 1973 | ||
| June 30, 1973 | |||
| 94th (1973-1975) | March 22, 1975 | ||
| 95th (1977-1979) | October 14, 1978 | ||
| 96th (1979-1981) | December 13, 1980 | ||
| 97th (1981-1983) | December 18, 1982 | ||
| December 19, 1982 | |||
| 98th (1983-1985) | |||
| 99th (1985-1987) | October 18, 1986 |
* Congressional leaders discontinued the use of third sessions by the end of the 1930s. The ratification of the 20th Amendment in 1933, provided for Congress to assemble on or about the third day of January rather than the traditional March start date. Third sessions, which generally had run from December to March, no longer were necessary.