| Opinion | Topic |
| Position Statement 12-01 | Travel |
| Position Statement 12-02 | Political Events |
| Letter Ruling 12-01 | Valuation of a Meal |
| Advisory Opinion 12-01 | Conflict of Interest |
| Advisory Opinion 12-02 | Acceptance of Travel Expenses from a Nonprofit |
| Advisory Opinion 12-03 | Acceptance of Travel Expenses |
| Advisory Opinion 12-04 | Acceptance of Travel Expenses |
| Advisory Opinion 12-05 | Waiver of travel Expenses |
| Advisory Opinion 12-06 | Waiver of travel Expenses |
| Advisory Opinion 12-07 | Waiver of Registration Fee |
| Advisory Opinion 12-08 | Waiver of Registration Fee (revised) |
| Advisory Opinion 12-09 | Acceptance of a Vehicle |
| Advisory Opinion 12-10 | Withdrawn |
| Advisory Opinion 12-11 | Acceptance of Travel Expenses |
| Advisory Opinion 12-12 | Aceptance of Expenses from a Federal Agency |