WAC 458-20-250
| WSR Filing Number | Type of Filing | Date of Filing |
| 08-14-025 | Permanent Rule | 6/20/2008 |
| 08-06-098 | Expedited Rule Making | 3/05/2008 |
| 06-12-017 | Permanent Rule | 5/26/2006 |
| 06-06-081 | Proposal Original Notice | 3/01/2006 |
| 05-22-051 | Emergency Rule | 10/28/2005 |
| 05-21-006 | Preproposal Statement of Inquiry | 10/06/2005 |
| 05-14-089 | Emergency Rule | 6/30/2005 |
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