WAC 192-220-020
| WSR Filing Number | Type of Filing | Date of Filing |
| 08-21-056 | Permanent Rule | 10/09/2008 |
| 08-15-159 | Proposal Original Notice | 7/23/2008 |
| 05-01-076 | Permanent Rule | 12/09/2004 |
| 04-19-016 | Emergency Rule | 9/03/2004 |
| 04-10-114 | Proposal Original Notice | 5/05/2004 |
| 04-10-071 | Emergency Rule | 5/03/2004 |
| 04-02-039 | Emergency Rule | 1/02/2004 |
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