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WAC 296-17-895

Industrial Insurance Accident Fund Base Rates, Stay at Work and Medical Aid Base Rates by Class of Industry.

Industrial insurance accident fund, stay at work and medical aid fund base rates by class of industry shall be as set forth below.
Base Rates Effective
January 1, 2026
Class
Accident Fund
Stay at
Work
Medical Aid Fund
101
1.3208
0.0196
0.4956
103
1.6131
0.0236
0.8489
104
1.5414
0.0230
0.4651
105
1.4139
0.0208
0.6629
106
4.4572
0.0652
2.3006
107
1.2575
0.0187
0.4526
108
1.5414
0.0230
0.4651
112
1.0200
0.0150
0.4499
201
3.4558
0.0517
0.9231
202
2.9495
0.0440
0.8434
210
1.6526
0.0246
0.5367
212
1.7613
0.0261
0.6900
214
2.5712
0.0385
0.6734
217
1.5111
0.0224
0.5738
219
0.9792
0.0145
0.3683
301
1.3253
0.0194
0.6452
302
2.5695
0.0382
0.8412
303
2.8953
0.0430
0.9820
306
1.1964
0.0178
0.4168
307
1.2948
0.0192
0.4699
308
0.8301
0.0121
0.4614
403
2.2458
0.0333
0.8073
502
1.3987
0.0207
0.5190
504
2.5120
0.0372
0.9725
507
3.7862
0.0556
1.7600
508
2.4302
0.0363
0.6658
509
1.5806
0.0237
0.3774
510
3.1145
0.0459
1.3422
511
2.5332
0.0377
0.8562
512
1.6922
0.0250
0.7156
513
1.3535
0.0200
0.5441
514
1.9951
0.0295
0.7955
516
1.9645
0.0291
0.7621
517
2.4363
0.0361
0.8972
518
1.8461
0.0275
0.6074
519
2.7798
0.0413
0.9255
521
1.1842
0.0175
0.5033
601
0.9472
0.0141
0.2845
602
1.3695
0.0206
0.3006
603
1.4684
0.0219
0.4106
604
1.3737
0.0202
0.6637
606
0.8475
0.0125
0.3641
607
1.1389
0.0169
0.4424
608
0.6056
0.0090
0.2097
701
1.2565
0.0188
0.3357
803
0.9901
0.0147
0.3548
901
1.8461
0.0275
0.6074
1002
1.1301
0.0167
0.4653
1003
0.8837
0.0130
0.3758
1004
0.9586
0.0143
0.2661
1005
8.3628
0.1235
3.4430
1006
0.4053
0.0060
0.1667
1007
0.5011
0.0074
0.2181
1101
1.4529
0.0215
0.6018
1102
2.7788
0.0415
0.8080
1103
1.5619
0.0231
0.5962
1104
0.9282
0.0136
0.4787
1105
1.1438
0.0169
0.4479
1106
0.5596
0.0081
0.3172
1108
0.9734
0.0143
0.4426
1109
3.2373
0.0481
1.1108
1301
0.9745
0.0144
0.4066
1303
0.6714
0.0100
0.2400
1304
0.0294
0.0004
0.0108
1305
0.7966
0.0118
0.2630
1401
0.4996
0.0073
0.2915
1404
1.1691
0.0170
0.6549
1405
1.2136
0.0179
0.5438
1407
1.2575
0.0185
0.5437
1408
0.5168
0.0069
0.2251
1501
1.5107
0.0224
0.5280
1507
0.6646
0.0097
0.3437
1701
1.1762
0.0174
0.4827
1702
2.2789
0.0342
0.4869
1703
1.6574
0.0248
0.4724
1704
1.1762
0.0174
0.4827
1801
0.9717
0.0145
0.3150
1802
1.5548
0.0231
0.5041
2002
1.1687
0.0173
0.4761
2004
0.8689
0.0127
0.4901
2007
0.9699
0.0142
0.4817
2008
0.4204
0.0062
0.1994
2009
0.5276
0.0077
0.3158
2101
0.9127
0.0133
0.5068
2102
0.9366
0.0137
0.5110
2103
2.3072
0.0340
0.9893
2104
0.4686
0.0066
0.4321
2105
1.4606
0.0216
0.5686
2106
0.8341
0.0122
0.4531
2201
0.4849
0.0070
0.3107
2202
1.3871
0.0205
0.5458
2203
0.7733
0.0112
0.4546
2204
0.4849
0.0070
0.3107
2401
0.6714
0.0099
0.2676
2903
0.8819
0.0128
0.5161
2904
1.0012
0.0148
0.4311
2905
0.8028
0.0117
0.4760
2906
0.8214
0.0120
0.4100
2907
0.5971
0.0086
0.3796
2908
1.0745
0.0156
0.6221
2909
0.6247
0.0091
0.3784
3101
1.1904
0.0175
0.5463
3102
0.5196
0.0077
0.1945
3103
0.5521
0.0081
0.2354
3104
1.1468
0.0168
0.5948
3105
1.2268
0.0179
0.6922
3303
0.5949
0.0087
0.2789
3304
1.0348
0.0151
0.5546
3309
0.6531
0.0096
0.2848
3402
0.6641
0.0097
0.3380
3403
0.2239
0.0033
0.1090
3404
0.8746
0.0129
0.3923
3405
0.3765
0.0055
0.2003
3406
0.3790
0.0056
0.1891
3407
1.5595
0.0232
0.4905
3408
0.4127
0.0061
0.1742
3409
0.2520
0.0037
0.1449
3410
0.2520
0.0037
0.1449
3411
0.7552
0.0112
0.3105
3412
1.0882
0.0162
0.3444
3414
1.3083
0.0193
0.5256
3415
2.2006
0.0325
0.9201
3501
0.4846
0.0071
0.2733
3503
0.5678
0.0083
0.2857
3506
1.2746
0.0189
0.4433
3509
0.7733
0.0114
0.3498
3510
0.5329
0.0077
0.3373
3511
1.2422
0.0182
0.6562
3512
0.5098
0.0074
0.2996
3513
0.8103
0.0120
0.3434
3602
0.1417
0.0021
0.0706
3603
0.7270
0.0106
0.3795
3604
1.4232
0.0208
0.7155
3605
0.6641
0.0097
0.3380
3701
0.5196
0.0077
0.1945
3702
0.4549
0.0066
0.2611
3708
1.0165
0.0150
0.4523
3802
0.2814
0.0041
0.1539
3808
0.5852
0.0086
0.2535
3901
0.1779
0.0026
0.1254
3902
0.7897
0.0115
0.4577
3903
1.1637
0.0169
0.6745
3905
0.1893
0.0027
0.1294
3906
0.7970
0.0116
0.4469
3909
0.3973
0.0057
0.2586
4101
0.2623
0.0038
0.1572
4103
0.9308
0.0136
0.5180
4107
0.3089
0.0046
0.1123
4108
0.3218
0.0047
0.1627
4109
0.3320
0.0048
0.1866
4201
1.5848
0.0237
0.4055
4301
1.1625
0.0169
0.6856
4302
1.2820
0.0189
0.5791
4304
1.1130
0.0161
0.7437
4305
2.1294
0.0316
0.7369
4401
0.5949
0.0087
0.2789
4402
1.0503
0.0155
0.4341
4404
0.9333
0.0137
0.4800
4501
0.2422
0.0035
0.1292
4502
0.0922
0.0014
0.0383
4504
0.1987
0.0029
0.1446
4802
0.7623
0.0111
0.4047
4803
0.6217
0.0089
0.4660
4804
0.8493
0.0124
0.4434
4805
0.5233
0.0075
0.3659
4806
0.2082
0.0030
0.1384
4808
0.8489
0.0124
0.4335
4809
0.3898
0.0056
0.2450
4810
0.3650
0.0053
0.2179
4811
0.6969
0.0100
0.4996
4812
0.6568
0.0096
0.3229
4813
0.5044
0.0073
0.3525
4900
0.2374
0.0035
0.0869
4901
0.0721
0.0011
0.0242
4902
0.1027
0.0015
0.0411
4903
0.3474
0.0051
0.1294
4904
0.0209
0.0003
0.0099
4905
0.6285
0.0091
0.3829
4906
0.1923
0.0028
0.0786
4907
0.0744
0.0011
0.0573
4908
0.1258
0.0018
0.1136
4909
0.0503
0.0007
0.0455
4910
0.8027
0.0118
0.3553
4911
0.1157
0.0017
0.0452
5001
15.0755
0.2253
4.1495
5002
0.9413
0.0139
0.3892
5003
4.7330
0.0706
1.3934
5004
1.4850
0.0217
0.7653
5005
1.7918
0.0267
0.5382
5006
2.1857
0.0326
0.6231
5101
1.5154
0.0225
0.5280
5103
1.3597
0.0199
0.7204
5106
1.3597
0.0199
0.7204
5108
1.3429
0.0199
0.5101
5109
0.7366
0.0109
0.2915
5201
0.4187
0.0061
0.2330
5204
2.0646
0.0309
0.5691
5206
0.5532
0.0082
0.2302
5207
0.2580
0.0037
0.1717
5208
0.8442
0.0124
0.4211
5209
0.8349
0.0123
0.3955
5300
0.1403
0.0021
0.0588
5301
0.0336
0.0005
0.0174
5302
0.0109
0.0002
0.0038
5305
0.0819
0.0012
0.0353
5306
0.0697
0.0010
0.0301
5307
1.1857
0.0176
0.4268
5308
0.1572
0.0023
0.0887
6103
0.1398
0.0020
0.0959
6104
0.6052
0.0089
0.2846
6105
0.9952
0.0148
0.3515
6107
0.2182
0.0031
0.2012
6108
0.3791
0.0055
0.2614
6109
0.2333
0.0035
0.0859
6110
0.7933
0.0118
0.2606
6120
0.6587
0.0098
0.2139
6121
0.8370
0.0124
0.2905
6201
0.8404
0.0124
0.3754
6202
1.4132
0.0207
0.7170
6203
0.1279
0.0018
0.1218
6204
0.1809
0.0026
0.1143
6205
0.3033
0.0044
0.1819
6206
0.2872
0.0042
0.1698
6207
1.3545
0.0198
0.6845
6208
0.2615
0.0037
0.2232
6209
0.3843
0.0055
0.2773
6301
0.2233
0.0033
0.0849
6303
0.0752
0.0011
0.0344
6305
0.1471
0.0021
0.0999
6306
0.6637
0.0097
0.3192
6308
0.1385
0.0020
0.0601
6309
0.3533
0.0052
0.1904
6402
0.2945
0.0042
0.2166
6403
0.2560
0.0037
0.1493
6404
0.4759
0.0069
0.2814
6405
0.9479
0.0139
0.4290
6406
0.2724
0.0040
0.1509
6407
0.4440
0.0065
0.2430
6408
0.9734
0.0143
0.4624
6409
1.1828
0.0175
0.4577
6410
0.4776
0.0070
0.2505
6411
0.0828
0.0012
0.0540
6501
0.1425
0.0021
0.0637
6502
0.0303
0.0004
0.0148
6503
0.1577
0.0024
0.0460
6504
0.3468
0.0050
0.2617
6505
0.1953
0.0028
0.1731
6506
0.1858
0.0027
0.0918
6509
0.4208
0.0061
0.2608
6510
0.8131
0.0122
0.2144
6511
0.3801
0.0055
0.2179
6512
0.1671
0.0025
0.0723
6601
0.3847
0.0056
0.1825
6602
0.9496
0.0138
0.5253
6603
0.4214
0.0061
0.2521
6604
0.0977
0.0014
0.0518
6605
0.4658
0.0068
0.2540
6607
0.1894
0.0027
0.1177
6608
0.9039
0.0136
0.2070
6620
6.1661
0.0914
2.2405
6704
0.2110
0.0031
0.1018
6705
1.0963
0.0155
0.9798
6706
0.3467
0.0050
0.2241
6707
10.5889
0.1459
12.3547
6708
11.8151
0.1679
9.8579
6709
0.3716
0.0054
0.2098
6801
1.3878
0.0208
0.3403
6802
1.6298
0.0240
0.6880
6803
1.0771
0.0162
0.2310
6804
0.4729
0.0070
0.2143
6809
4.6841
0.0678
2.9698
6901
0.0000
0.0000
0.0677
6902
1.3733
0.0204
0.5054
6903
6.6646
0.0996
1.8388
6904
3.6023
0.0542
0.7455
6905
2.8610
0.0431
0.4907
6906
0.0000
0.0000
0.7328
6907
1.1906
0.0174
0.6290
6908
0.6415
0.0094
0.3384
6909
0.1823
0.0027
0.0926
7100
0.0309
0.0005
0.0099
7101
0.0516
0.0008
0.0159
7103
2.1052
0.0314
0.6099
7104
0.0465
0.0007
0.0193
7105
0.0320
0.0005
0.0136
7106
0.3691
0.0054
0.2040
7107
0.6827
0.0100
0.3219
7108
0.4872
0.0071
0.2978
7109
0.1896
0.0028
0.0825
7110
0.7753
0.0114
0.3190
7111
0.7570
0.0114
0.1679
7112
0.9933
0.0144
0.6182
7113
0.7562
0.0111
0.3776
7114
1.0523
0.0153
0.6411
7115
0.9019
0.0131
0.5479
7116
1.0519
0.0155
0.4431
7117
1.5754
0.0231
0.7391
7118
2.4529
0.0362
1.0042
7119
3.1162
0.0462
1.1516
7120
10.6471
0.1581
3.6843
7121
13.5875
0.2031
3.7427
7122
0.5308
0.0077
0.3431
7200
5.1971
0.0779
1.2850
7201
3.4025
0.0508
0.9825
7202
0.0281
0.0004
0.0122
7203
0.1258
0.0018
0.1020
7204
0.0000
0.0000
0.0000
7205
0.0000
0.0000
0.0000
7301
0.9722
0.0141
0.6092
7302
1.4448
0.0210
0.8825
7307
0.5999
0.0087
0.3394
7308
0.4118
0.0059
0.3087
7400
5.9766
0.0895
1.4778
[Statutory Authority: RCW 51.16.035, 51.32.073, 51.18.010, and 51.04.020(1). WSR 25-24-041, s 296-17-895, filed 11/26/25, effective 1/1/26; WSR 24-24-046, s 296-17-895, filed 11/26/24, effective 1/1/25; WSR 23-24-039, § 296-17-895, filed 11/30/23, effective 1/1/24; WSR 22-24-019, § 296-17-895, filed 11/30/22, effective 1/1/23; WSR 21-24-066, § 296-17-895, filed 11/30/21, effective 1/1/22; WSR 20-24-094, § 296-17-895, filed 11/30/20, effective 1/1/21; WSR 19-24-029, § 296-17-895, filed 11/25/19, effective 1/1/20; WSR 18-24-073, § 296-17-895, filed 11/30/18, effective 1/1/19; WSR 17-24-041, § 296-17-895, filed 11/30/17, effective 1/1/18; WSR 16-24-014, § 296-17-895, filed 11/29/16, effective 1/1/17; WSR 15-24-103, § 296-17-895, filed 12/1/15, effective 1/1/16; WSR 14-24-084, § 296-17-895, filed 12/1/14, effective 1/1/15; WSR 13-24-073, § 296-17-895, filed 11/30/13, effective 1/1/14. Statutory Authority: RCW 51.16.035 and 51.04.020(1). WSR 13-10-080, § 296-17-895, filed 5/1/13, effective 7/1/13. Statutory Authority: RCW 51.16.035, 51.32.073, 51.08.010, and 51.04.020(1). WSR 12-24-048, § 296-17-895, filed 11/30/12, effective 1/1/13; WSR 11-24-026, § 296-17-895, filed 12/1/11, effective 1/1/12. Statutory Authority: RCW 51.16.035, 51.32.073, 51.18.010, and 51.04.020(1). WSR 11-04-069, § 296-17-895, filed 1/28/11, effective 2/28/11; WSR 09-24-086, § 296-17-895, filed 11/30/09, effective 1/1/10; WSR 08-24-074, § 296-17-895, filed 12/1/08, effective 1/1/09; WSR 07-24-046, § 296-17-895, filed 12/1/07, effective 1/1/08. Statutory Authority: RCW 51.06.035, 51.08.010, 51.04.020. WSR 07-12-045, § 296-17-895, filed 5/31/07, effective 7/1/07; WSR 07-07-032 and 07-07-129, § 296-17-895, filed 3/12/07 and 3/21/07, effective 7/1/07. Statutory Authority: RCW 51.16.035, 51.32.073, 51.08.010, and 51.04.020(1). WSR 06-24-054, § 296-17-895, filed 12/1/06, effective 1/1/07. Statutory Authority: RCW 51.04.020, 51.16.035, and 51.32.073. WSR 05-23-162, § 296-17-895, filed 11/22/05, effective 1/1/06; WSR 04-24-025, § 296-17-895, filed 11/23/04, effective 1/1/05. Statutory Authority: RCW 51.04.020 and 51.16.035. WSR 04-13-017, § 296-17-895, filed 6/4/04, effective 7/5/04. Statutory Authority: RCW 51.04.020, 51.16.035, 51.32.073, and 51.18.010. WSR 03-24-066, § 296-17-895, filed 12/1/03, effective 1/1/04. Statutory Authority: RCW 51.16.035, 51.32.073, 51.18.010, and 51.04.020(1). WSR 02-24-029, § 296-17-895, filed 11/27/02, effective 1/1/03. Statutory Authority: RCW 51.04.020, 51.16.035, 51.32.073, 51.18.010. WSR 01-23-061, § 296-17-895, filed 11/20/01, effective 1/1/02; WSR 00-23-101, § 296-17-895, filed 11/21/00, effective 1/1/01. Statutory Authority: RCW 51.16.035, 51.04.020. WSR 00-14-052, § 296-17-895, filed 7/1/00, effective 7/1/00. Statutory Authority: RCW 51.04.020, 51.16.035 and 51.32.073. WSR 99-24-055, § 296-17-895, filed 11/29/99, effective 12/31/99; WSR 98-24-094, § 296-17-895, filed 12/1/98, effective 1/1/99. Statutory Authority: RCW 51.16.035. WSR 98-18-042, § 296-17-895, filed 8/28/98, effective 10/1/98. Statutory Authority: RCW 51.04.020, 51.16.035 and 51.32.073. WSR 97-24-062, § 296-17-895, filed 12/1/97, effective 1/1/98; WSR 96-24-063, § 296-17-895, filed 11/29/96, effective 1/1/97. Statutory Authority: RCW 51.16.035. WSR 96-12-039, § 296-17-895, filed 5/31/96, effective 7/1/96. Statutory Authority: RCW 51.16.035 and 51.32.073. WSR 96-06-025, § 296-17-895, filed 2/28/96, effective 4/1/96. Statutory Authority: RCW 51.04.020. WSR 95-23-080, § 296-17-895, filed 11/20/95, effective 1/1/96; WSR 94-24-007, § 296-17-895, filed 11/28/94, effective 1/1/95. Statutory Authority: RCW 51.04.020(1) and 51.16.035. WSR 94-12-051, § 296-17-895, filed 5/27/94, effective 7/1/94. Statutory Authority: RCW 51.04.020. WSR 93-24-114, § 296-17-895, filed 12/1/93, effective 1/1/94. Statutory Authority: RCW 51.04.020(1) and 51.16.035. WSR 93-12-093, § 296-17-895, filed 5/31/93, effective 7/1/93; WSR 92-24-063, § 296-17-895, filed 11/30/92, effective 1/1/93; WSR 91-24-053, § 296-17-895, filed 11/27/91, effective 1/1/92; WSR 91-12-014, § 296-17-895, filed 5/31/91, effective 7/1/91; WSR 90-24-042, § 296-17-895, filed 11/30/90, effective 1/1/91; WSR 90-13-018, § 296-17-895, filed 6/8/90, effective 7/9/90; WSR 89-24-051 (Order 89-22), § 296-17-895, filed 12/1/89, effective 1/1/90. Statutory Authority: RCW 51.04.020(1). WSR 89-16-001 (Order 89-07), § 296-17-895, filed 7/20/89, effective 8/20/89. Statutory Authority: RCW 51.16.035 and 51.04.020. WSR 88-24-012 (Order 88-30), § 296-17-895, filed 12/1/88, effective 1/1/89. Statutory Authority: RCW 51.16.035. WSR 88-12-065 (Order 88-05), § 296-17-895, filed 5/31/88; WSR 88-12-050 (Order 88-06), § 296-17-895, filed 5/31/88, effective 7/1/88; WSR 88-06-047 (Order 87-33), § 296-17-895, filed 3/1/88; WSR 87-24-060 (Order 87-26), § 296-17-895, filed 12/1/87, effective 1/1/88; WSR 87-12-032 (Order 87-12), § 296-17-895, filed 5/29/87, effective 7/1/87. Statutory Authority: RCW 51.04.020(1) and 51.16.035. WSR 86-24-042 (Order 86-41), § 296-17-895, filed 11/26/86. Statutory Authority: RCW 51.16.035. WSR 86-12-041 (Order 86-18), § 296-17-895, filed 5/30/86, effective 7/1/86; WSR 85-24-032 (Order 85-33), § 296-17-895, filed 11/27/85, effective 1/1/86; WSR 85-13-046 (Order 85-13), § 296-17-895, filed 6/17/85; WSR 85-06-026 (Order 85-7), § 296-17-895, filed 2/28/85, effective 4/1/85; WSR 84-24-016 (Order 84-23), § 296-17-895, filed 11/28/84, effective 1/1/85. Statutory Authority: RCW 51.04.020(1). WSR 84-12-048 (Order 84-12), § 296-17-895, filed 6/1/84. Statutory Authority: RCW 51.16.035. WSR 83-24-017 (Order 83-36), § 296-17-895, filed 11/30/83, effective 1/1/84; WSR 82-24-047 (Order 82-38), § 296-17-895, filed 11/29/82, effective 1/1/83; WSR 81-24-042 (Order 81-30), § 296-17-895, filed 11/30/81, effective 1/1/82; WSR 81-04-024 (Order 81-02), § 296-17-895, filed 1/30/81; WSR 80-17-016 (Order 80-23), § 296-17-895, filed 11/13/80, effective 1/1/81. Statutory Authority: RCW 51.04.030 and 51.16.035. WSR 79-12-086 (Order 79-18), § 296-17-895, filed 11/30/79, effective 1/1/80. Statutory Authority: RCW 51.04.020(1) and 51.16.035. WSR 78-12-043 (Order 78-23), § 296-17-895, filed 11/27/78, effective 1/1/79; Order 77-27, § 296-17-895, filed 11/30/77, effective 1/1/78; Emergency Order 77-25, § 296-17-895, filed 12/1/77; Order 77-10, § 296-17-895, filed 5/31/77; Order 76-36, § 296-17-895, filed 11/30/76; Order 76-18, § 296-17-895, filed 5/28/76, effective 7/1/76; Order 75-38, § 296-17-895, filed 11/24/75, effective 1/1/76; Order 75-28, § 296-17-895, filed 8/29/75, effective 10/1/75; Order 74-40, § 296-17-895, filed 11/27/74, effective 1/1/75; Order 73-22, § 296-17-895, filed 11/9/73, effective 1/1/74.]