WAC 388-97-1600
| WSR Filing Number | Type of Filing | Date of Filing |
| 19-18-051 | Preproposal Statement of Inquiry | 8/30/2019 |
| 19-18-033 | Preproposal Statement of Inquiry Withdrawal | 8/29/2019 |
| 18-17-099 | Preproposal Statement of Inquiry | 8/15/2018 |
| 18-17-063 | Preproposal Statement of Inquiry Withdrawal | 8/09/2018 |
| 16-19-063 | Preproposal Statement of Inquiry | 9/19/2016 |
| 10-02-021 | Permanent Rule | 12/29/2009 |
| 09-20-062 | Proposal Original Notice | 10/02/2009 |
| 09-14-070 | Preproposal Statement of Inquiry | 6/29/2009 |
| 08-20-062 | Permanent Rule | 9/24/2008 |
| 08-14-065 | Proposal Original Notice | 6/25/2008 |
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