HSR Notices
| Federal Register Cite | Date | Topic |
| 47 FR 29182 | July 2, 1982 | Notice of request for comments on paperwork burden reduction |
| 57 FR 47466 | October 16, 1992 | Filing fee established |
| 70 FR 5020 | January 31, 2005 | Revised thresholds for 2005 |
| 71 FR 2943 | January 18, 2006 | Revised thresholds for 2006 |
| 72 FR 2692 | January 22, 2007 | Revised thresholds for 2007 |
| 73 FR 5191 | January 29, 2008 | Revised thresholds for 2008 |
| 74 FR 1687 | January 13, 2009 | Revised thresholds for 2009 |

