H.R. 1973: To improve vaccine safety research, and for other purposes. H.R. 1973: Vaccine Safety and Public Confidence Assurance Act of 2007 Referred to the House Committee on Energy and Commerce. 2007-04-19 Referred to the Subcommittee on Health. 2007-04-20 H.R. 1973: Vaccine Safety and Public Confidence Assurance Act of 2007 h H.R. 1973: Vaccine Safety and Public Confidence Assurance Act of 2007 (110th Congress) Vaccine Safety and Public Confidence Assurance Act of 2007 To improve vaccine safety research, and for other purposes. 2007-04-19 110 2007-04-19 1973 introduced HouseBill LegislativeAction OfficialTitle ShortTitle