| Ord. No. | Date Passed | Description |
| 1481 | 9-12-83 | Adopting the Hermiston Planning Area Joint Management Agreement and directing the Mayor and Finance Director/Recorder to execute and sign documents |
| 1912 | 11-25-96 | Amending Ordinance No. 1481 to establish an Urban Planning Area Joint Management Agreement with Umatilla County to revise policies concerning county roads within the city's boundary |
| 1919 | 11-13-97 | Authorizing a loan from the Public Works Fund to enter into a contract with the Oregon Economic Development Department |
| 2054 | 4-22-02 | Authorizing the Mayor and City Manager to enter into an agreement with Copper Basin, Inc. |
| 2084 | 4-26-04 | Repealing Ordinances 1481 and 1912 and implementing the 2004 Planning Area Joint Management Agreement |