| Source | Coverage dates | Access |
| Westlaw Edge |
(Included with legislative histories for most enacted bills) |
BC Law |
| Lexis+ | 1824- | BC Law |
| HeinOnline | 1887- | BC |
| ProQuest Congressional | 1824- | BC |
| ProQuest Legislative Insights |
(Select coverage of hearings; only hearings included in legislative histories) |
BC |
| GovInfo | 1957- | Web |