Effective October 1, 2023.

Risk Classification	Hazard Group
101	9
103	9
104	8
105	4
106	7
107	9
108	9
112	8
201	9
202	9
210	9
212	8
214	9
217	7
219	7
301	5
302	9
303	9
306	9
307	7
308	3
403	6
502	7
504	8
507	9
508	9
509	9
510	7
511	7
512	8
513	7
514	7
516	8
517	9
518	9
519	8
521	7
540	8
541	9
550	9
551	9
601	8
602	9
603	9
604	7
606	3
607	6
608	7
701	9
803	5
901	8
1002	7
1003	5
1004	6
1005	8
1006	4
1007	7
1101	5
1102	8
1103	7
1104	4
1105	6
1106	3
1108	5
1109	7
1301	6
1303	4
1304	4
1305	6
1401	5
1404	3
1405	4
1407	3
1501	6
1507	4
1701	8
1702	9
1703	9
1704	7
1801	8
1802	8
2002	6
2004	2
2007	7
2008	3
2009	3
2101	5
2102	3
2103	2
2104	2
2105	3
2106	4
2201	3
2202	5
2203	2
2204	3
2401	6
2903	4
2904	7
2905	3
2906	6
2907	3
2908	4
2909	7
3101	6
3102	7
3103	7
3104	4
3105	5
3303	4
3304	3
3309	4
3402	6
3403	5
3404	4
3405	5
3406	1
3407	7
3408	2
3409	1
3410	1
3411	6
3412	8
3414	6
3415	6
3501	6
3503	3
3506	8
3509	1
3510	4
3511	6
3512	1
3513	3
3602	4
3603	6
3604	6
3605	4
3701	6
3702	3
3708	6
3802	4
3808	5
3901	1
3902	2
3903	2
3905	1
3906	3
3909	2
4101	4
4103	5
4107	6
4108	3
4109	4
4201	8
4301	4
4302	5
4304	5
4305	6
4401	3
4402	3
4404	4
4501	1
4502	6
4504	1
4802	5
4803	2
4804	3
4805	3
4806	1
4808	6
4809	4
4810	2
4811	3
4812	5
4813	3
4814	2
4815	1
4816	4
4900	8
4901	6
4902	4
4903	3
4904	2
4905	1
4906	3
4907	1
4908	1
4909	1
4910	5
4911	7
5001	9
5002	3
5003	9
5004	8
5005	9
5006	9
5101	7
5103	4
5106	4
5108	3
5109	6
5201	2
5204	8
5206	8
5207	2
5208	6
5209	6
5300	2
5301	5
5302	3
5305	3
5306	1
5307	4
5308	2
6103	1
6104	3
6105	6
6107	1
6108	1
6109	4
6110	4
6120	4
6121	4
6201	4
6202	4
6203	1
6204	2
6205	3
6206	1
6207	5
6208	1
6209	3
6301	8
6303	4
6305	1
6306	4
6308	5
6309	3
6402	1
6403	1
6404	3
6405	5
6406	1
6407	2
6408	7
6409	6
6410	2
6411	3
6501	1
6502	4
6503	2
6504	1
6505	1
6506	2
6509	2
6510	9
6511	1
6512	5
6601	4
6602	3
6603	2
6604	2
6605	2
6607	2
6608	9
6620	1
6704	1
6705	1
6706	3
6707	1
6708	6
6709	2
6801	2
6802	3
6803	9
6804	3
6809	1
6901	1
6902	8
6903	9
6904	6
6905	4
6906	1
6907	3
6908	5
6909	3
7100	4
7101	7
7103	5
7104	3
7105	3
7106	3
7107	1
7108	2
7109	3
7110	4
7111	5
7112	3
7113	3
7114	2
7115	3
7116	7
7117	4
7118	6
7119	5
7120	8
7121	7
7122	4
7200	7
7201	5
7202	3
7203	1
7301	6
7302	7
7307	2
7308	1
7309	1
7400	6
The following classes have no hazard group assigned to them
6618
6625
6626
6627
7204
7205

[Statutory Authority: RCW 51.18.005, 51.16.035, and 51.18.010(2). WSR 23-17-146, § 296-17-901, filed 8/22/23, effective 10/1/23. Statutory Authority: RCW 51.16.035, 51.32.073, 51.18.010 and 51.04.020(1). WSR 20-24-094, § 296-17-901, filed 11/30/20, effective 1/1/21; WSR 18-24-073, § 296-17-901, filed 11/30/18, effective 1/1/19; WSR 17-24-041, § 296-17-901, filed 11/30/17, effective 1/1/18 . Statutory Authority: RCW 51.18.010(2), 51.04.020. WSR 17-12-020, § 296-17-901, filed 5/30/17, effective 6/30/17. Statutory Authority: RCW 51.16.035, 51.32.073, 51.18.010, and 51.04.020(1). WSR 14-24-084, § 296-17-901, filed 12/1/14, effective 1/1/15; WSR 13-24-073, § 296-17-901, filed 11/30/13, effective 1/1/14. Statutory Authority: RCW 51.16.035 and 51.04.020(1). WSR 13-10-080, § 296-17-901, filed 5/1/13, effective 7/1/13. Statutory Authority: RCW 51.16.035, 51.16.100, 51.04.020(1), and 51.18.010. WSR 10-21-086, § 296-17-901, filed 10/19/10, effective 11/19/10.]

PDFWAC 296-17-901

Risk classification hazard group table.