WAC 180-51-053
| WSR Filing Number | Type of Filing | Date of Filing |
| 18-06-032 | Permanent Rule | 2/28/2018 |
| 17-24-010 | Expedited Rule Making | 11/27/2017 |
| 10-12-082 | Permanent Rule | 6/01/2010 |
| 10-04-115 | Proposal Original Notice | 2/03/2010 |
| 09-17-089 | Preproposal Statement of Inquiry | 8/17/2009 |
| 04-20-093 | Permanent Rule | 10/05/2004 |
| 04-15-043 | Proposal Original Notice | 7/12/2004 |
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