WAC 222-20-050
| WSR Filing Number | Type of Filing | Date of Filing |
| 13-01-007 | Permanent Rule | 12/06/2012 |
| 12-17-152 | Proposal Original Notice | 8/22/2012 |
| 10-23-077 | Permanent Rule | 11/15/2010 |
| 10-18-077 | Expedited Rule Making | 8/31/2010 |
| 07-20-044 | Permanent Rule | 9/26/2007 |
| 07-14-039 | Proposal Original Notice | 6/27/2007 |
| 05-12-119 | Permanent Rule | 5/31/2005 |
| 05-06-096 | Proposal Original Notice | 3/01/2005 |
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