Administrative history
| Period | Updated | Owner | Reference |
|---|---|---|---|
| Internal | 19 Dec | Notice | BUL-8547 |
| Regional | 25 Mar | District | DIV-4757 |
| Central | 11 Oct | Deposit | IND-7678 |
| Internal | 2 Jun | Industry | DEP-1629 |
| Northern | 14 Oct | Heading | DIS-1727 |
| Normal | 27 Jan | Comment | DIA-2807 |
| Scheduled | 3 Jul | Instrument | EMP-2135 |