WAC 284-97-020
| WSR Filing Number | Type of Filing | Date of Filing |
| 11-24-011 | Permanent Rule | 11/29/2011 |
| 11-21-095 | Proposal Original Notice | 10/19/2011 |
| 10-06-079 | Rescind Emergency Rule | 3/01/2010 |
| 10-04-042 | Permanent Rule | 1/27/2010 |
| 09-23-073 | Emergency Rule | 11/16/2009 |
| 09-22-082 | Proposal Original Notice | 11/03/2009 |
| 09-15-132 | Emergency Rule | 7/20/2009 |
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