WAC 16-170-020
| WSR Filing Number | Type of Filing | Date of Filing |
| 20-17-020 | Permanent Rule | 8/06/2020 |
| 20-12-097 | Expedited Rule Making | 6/03/2020 |
| 09-16-035 | Permanent Rule | 7/28/2009 |
| 09-16-031 | Emergency Rule | 7/27/2009 |
| 09-13-105 | Proposal Original Notice | 6/17/2009 |
| 04-08-062 | Permanent Rule | 4/05/2004 |
| 04-05-119 | Proposal Original Notice | 2/18/2004 |
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