Congressional (from ProQuest) Unpublished Hearings Digital Collection B (House 1980, Senate 1985–1990)

Many hearings are not printed. The law does not require publication, and each committee or subcommittee decides whether to publish a particular hearing. Rules dictate when unpublished hearings are released from the National Archives. Senate hearings are usually released after 20 years; House hearings after 30 years. The exception is hearings that include classified or sensitive material; they can be held for up to 50 years.