WAC 480-93-223
| WSR Filing Number | Type of Filing | Date of Filing |
| 19-14-118 | Permanent Rule | 7/03/2019 |
| 19-10-074 | Expedited Rule Making | 5/01/2019 |
| 14-19-002 | Permanent Rule | 9/03/2014 |
| 14-10-083 | Proposal Original Notice | 5/07/2014 |
| 14-05-090 | Preproposal Statement of Inquiry | 2/19/2014 |
| 08-12-046 | Permanent Rule | 5/30/2008 |
| 08-07-081 | Proposal Original Notice | 3/19/2008 |
| 05-10-055 | Permanent Rule | 5/02/2005 |
| 05-02-096 | Proposal Supplemental | 1/05/2005 |
| 04-15-141 | Proposal Original Notice | 7/21/2004 |
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