WAC 458-20-279
| WSR Filing Number | Type of Filing | Date of Filing |
| 19-24-083 | Permanent Rule | 12/03/2019 |
| 19-20-015 | Expedited Rule Making | 9/20/2019 |
| 10-17-069 | Permanent Rule | 8/13/2010 |
| 10-04-099 | Expedited Rule Making | 2/03/2010 |
| 09-02-051 | Permanent Rule | 12/31/2008 |
| 08-22-101 | Proposal Original Notice | 11/05/2008 |
| 08-17-120 | Preproposal Statement of Inquiry | 8/20/2008 |
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