WAC 173-98-220
| WSR Filing Number | Type of Filing | Date of Filing |
| 17-17-040 | Permanent Rule | 8/09/2017 |
| 17-09-078 | Proposal Original Notice | 4/19/2017 |
| 11-20-036 | Permanent Rule | 9/27/2011 |
| 11-13-125 | Proposal Original Notice | 6/22/2011 |
| 09-09-078 | Emergency Rule | 4/15/2009 |
| 07-14-096 | Permanent Rule | 6/29/2007 |
| 07-05-078 | Proposal Original Notice | 2/20/2007 |
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