WAC 458-16-270
| WSR Filing Number | Type of Filing | Date of Filing |
| 20-23-070 | Permanent Rule | 11/16/2020 |
| 20-17-044 | Expedited Rule Making | 8/10/2020 |
| 15-07-021 | Permanent Rule | 3/10/2015 |
| 15-02-063 | Expedited Rule Making | 1/06/2015 |
| 09-19-069 | Permanent Rule | 9/14/2009 |
| 09-14-063 | Proposal Original Notice | 6/29/2009 |
| 07-15-094 | Preproposal Statement of Inquiry | 7/18/2007 |
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