WAC 260-28-020
| WSR Filing Number | Type of Filing | Date of Filing |
| 21-03-018 | Permanent Rule | 1/08/2021 |
| 20-23-066 | Proposal Original Notice | 11/16/2020 |
| 20-16-050 | Preproposal Statement of Inquiry | 7/28/2020 |
| 14-03-057 | Permanent Rule | 1/13/2014 |
| 13-23-044 | Proposal Original Notice | 11/15/2013 |
| 13-17-025 | Preproposal Statement of Inquiry | 8/12/2013 |
| 07-07-007 | Permanent Rule | 3/08/2007 |
| 07-03-010 | Proposal Original Notice | 1/04/2007 |
| 07-03-007 | Proposal Withdrawl | 1/04/2007 |
| 07-01-114 | Proposal Original Notice | 12/20/2006 |
| 04-24-019 | Permanent Rule | 11/22/2004 |
| 04-20-035 | Proposal Original Notice | 9/29/2004 |
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