WAC 260-48-520
| WSR Filing Number | Type of Filing | Date of Filing |
| 14-05-051 | Permanent Rule | 2/14/2014 |
| 14-01-070 | Proposal Original Notice | 12/16/2013 |
| 08-17-049 | Permanent Rule | 8/14/2008 |
| 08-11-112 | Proposal Original Notice | 5/20/2008 |
| 07-10-004 | Preproposal Statement of Inquiry Withdrawl | 4/18/2007 |
| 07-07-101 | Preproposal Statement of Inquiry | 3/19/2007 |
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