WAC 260-48-620
| WSR Filing Number | Type of Filing | Date of Filing |
| 20-03-087 | Permanent Rule | 1/13/2020 |
| 19-22-087 | Proposal Original Notice | 11/06/2019 |
| 19-15-058 | Preproposal Statement of Inquiry | 7/15/2019 |
| 08-17-049 | Permanent Rule | 8/14/2008 |
| 08-11-112 | Proposal Original Notice | 5/20/2008 |
| 04-07-077 | Permanent Rule | 3/15/2004 |
| 04-04-048 | Proposal Original Notice | 1/29/2004 |
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