Although the office of Attorney-General was established in 1789, it was not until 1870 that a Department of Justice was established with the Attorney-General as its head. This new executive department gathered together in one place all the legal advisers then attached to other departments, as well as the district attorneys, marshals, and other court-related offices. The Official Opinions were published irregularly to cover opinions issued from 1789 onward; however, the first 16 volumes of Opinions were not printed in the Congressional Serial Set. (Andriot 530, Checklist 590)
| Volume | Congress | Session | Type | Doc.Volume | Number | Serial Set Volume |
|---|---|---|---|---|---|---|
| v.1-16 | Not included in Congressional documents | |||||
| v.17 | 51st | 1st | H.misc.doc. | 27 | 237 | 2786 |
| v.18 | 51st | 1st | H.misc.doc. | 28 | 238 | 2787 |
| v.19 | 51st | 1st | H.misc.doc. | 29 | 239 | 2788 |
| v.20 | 53rd | 3rd | H.misc.doc. | 5 | 44 | 3331 |
| v.21 | 55th | 2nd | H.doc. | 69 | 554 | 3697 |
| v.22 | 56th | 2nd | H.doc. | 99 | 512 | 4173 |
| v.23 | 57th | 1st | H.doc. | 130 | 717 | 4397 |
| v.24 | 57th | 2nd | H.doc. | 114 | 493 | 4553 |
| v.25 | 59th | 2nd | H.doc. | 43 | 23 | 5146 |
| v.26 | 60th | 2nd | H.doc. | 36 | 1035 | 5446 |
| v.27 | 61st | 3rd | H.doc. | 26 | 1013 | 5970 |
| v.28 | 62nd | 2nd | H.doc. | 34 | 140 | 6216 |
| v.29 | 62nd | 3rd | H.doc. | 36 | 1490 | 6402 |
| v.30 | 65th | 3rd | H.doc. | 24 | 1876 | 7493 |
| v.31 | 66th | 2nd | H.doc. | 30 | 748 | 7701 |
| v.32 | 67th | 2nd | H.doc. | 23 | 221 | 8011 |
| v.33 | 68th | 1st | H.doc. | 28 | 199 | 8289 |
| v.34 | 69th | 1st | H.doc. | 37 | 280 | 8598 |
| v.35 | 70th | 2nd | H.doc. | 48 | 458 | 9051 |
| v.36 | 71st | 3rd | H.doc. | 52 | 824 | 9402 |
| v.37 | 72nd | 2nd | H.doc. | 26 | 579 | 9694 |
| v.38 | 73rd | 2nd | H.doc. | 41 | 414 | 9845 |
| v.39 | 74th | 2nd | H.doc. | 27 | 512 | 10046 |
| v.40 | 80th | 2nd | H.doc. | 40 | 732 | 11262 |
| v.41 | 87th | 1st | H.doc. | 73 | 488 | 12531 |
| v.42 | Not printed | |||||
Disclaimer: This finding list is provided for general reference use only and is not indicative of the Serial Set or agency holdings at the College of Wooster. If you are looking for a report listed here, please check at your local depository library.