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PDFWAC 296-17-885

Table III.

Expected Loss Rates and Primary Ratios
by Risk Classification and Fiscal Year
Expected Loss Rates in Dollars Per Worker Hour
Effective January 1, 2025
Class
2021
2022
2023
Primary Ratio
101
0.6527
0.5614
0.5145
0.425
103
0.8889
0.7754
0.7310
0.423
104
0.6145
0.5253
0.4767
0.427
105
0.7462
0.6442
0.5944
0.489
106
2.1930
1.9206
1.8224
0.392
107
0.6066
0.5204
0.4757
0.443
108
0.6145
0.5253
0.4767
0.427
112
0.5388
0.4653
0.4299
0.444
201
1.4095
1.2030
1.0878
0.360
202
1.2094
1.0322
0.9335
0.418
210
0.6870
0.5902
0.5414
0.387
212
0.7209
0.6228
0.5750
0.420
214
1.0346
0.8807
0.7922
0.404
217
0.6999
0.6011
0.5494
0.460
219
0.4831
0.4142
0.3774
0.465
301
0.7027
0.6086
0.5651
0.464
302
1.2366
1.0595
0.9623
0.429
303
1.2734
1.0912
0.9903
0.431
306
0.5370
0.4598
0.4185
0.454
307
0.5772
0.4956
0.4537
0.476
308
0.4758
0.4123
0.3839
0.509
403
1.0183
0.8743
0.7988
0.448
502
0.6171
0.5295
0.4820
0.462
504
1.2611
1.0881
1.0043
0.412
507
1.9572
1.7061
1.6075
0.406
508
1.0158
0.8660
0.7792
0.399
509
0.6031
0.5139
0.4652
0.361
510
1.5652
1.3571
1.2646
0.406
511
1.0446
0.8931
0.8104
0.459
512
0.8485
0.7328
0.6789
0.445
513
0.6296
0.5416
0.4967
0.449
514
0.9539
0.8201
0.7525
0.487
516
0.9589
0.8240
0.7539
0.448
517
1.1112
0.9599
0.8873
0.383
518
0.7979
0.6838
0.6251
0.414
519
1.3093
1.1228
1.0230
0.410
521
0.5350
0.4633
0.4314
0.438
601
0.3834
0.3267
0.2948
0.455
602
0.5257
0.4443
0.3932
0.404
603
0.5704
0.4879
0.4425
0.389
604
0.7383
0.6391
0.5948
0.474
606
0.4554
0.3895
0.3518
0.540
607
0.5885
0.5032
0.4540
0.501
608
0.2791
0.2380
0.2144
0.478
701
0.7460
0.6367
0.5756
0.360
803
0.4946
0.4218
0.3799
0.500
901
0.7979
0.6838
0.6251
0.414
1002
0.5722
0.4917
0.4504
0.457
1003
0.4276
0.3677
0.3368
0.479
1004
0.3598
0.3065
0.2752
0.428
1005
4.2340
3.6386
3.3331
0.457
1006
0.2011
0.1717
0.1544
0.532
1007
0.2630
0.2258
0.2060
0.504
1101
0.8987
0.7683
0.6926
0.519
1102
1.1567
0.9882
0.8921
0.405
1103
0.7934
0.6782
0.6117
0.502
1104
0.4797
0.4148
0.3858
0.504
1105
0.5642
0.4830
0.4387
0.491
1106
0.3343
0.2883
0.2654
0.557
1108
0.4672
0.4023
0.3683
0.510
1109
1.5078
1.2938
1.1770
0.430
1301
0.4700
0.4047
0.3717
0.445
1303
0.3193
0.2709
0.2404
0.528
1304
0.0135
0.0117
0.0106
0.474
1305
0.3513
0.3003
0.2708
0.458
1401
0.2929
0.2545
0.2372
0.509
1404
0.6781
0.5857
0.5394
0.534
1405
0.6244
0.5351
0.4860
0.527
1407
0.5817
0.4988
0.4524
0.508
1408
0.2625
0.2282
0.2127
0.497
1501
0.6928
0.5908
0.5306
0.493
1507
0.3659
0.3146
0.2881
0.539
1701
0.5811
0.5024
0.4642
0.415
1702
0.8169
0.6959
0.6285
0.315
1703
0.6631
0.5660
0.5105
0.406
1704
0.5811
0.5024
0.4642
0.415
1801
0.4117
0.3524
0.3196
0.423
1802
0.6586
0.5638
0.5114
0.423
2002
0.5635
0.4842
0.4429
0.479
2004
0.4824
0.4163
0.3857
0.561
2007
0.4990
0.4337
0.4063
0.443
2008
0.2046
0.1764
0.1616
0.511
2009
0.3186
0.2759
0.2573
0.545
2101
0.5097
0.4428
0.4139
0.481
2102
0.5276
0.4570
0.4248
0.496
2103
1.3692
1.1648
1.0361
0.562
2104
0.3246
0.2852
0.2745
0.569
2105
0.6719
0.5736
0.5160
0.520
2106
0.4636
0.4007
0.3708
0.520
2201
0.2978
0.2601
0.2457
0.493
2202
0.6103
0.5230
0.4754
0.506
2203
0.4403
0.3804
0.3525
0.552
2204
0.2978
0.2601
0.2457
0.493
2401
0.3329
0.2860
0.2621
0.464
2903
0.4911
0.4267
0.3995
0.513
2904
0.4675
0.4050
0.3784
0.407
2905
0.4608
0.3994
0.3727
0.526
2906
0.4262
0.3710
0.3496
0.452
2907
0.3601
0.3131
0.2944
0.541
2908
0.6139
0.5343
0.5043
0.514
2909
0.3587
0.3136
0.2960
0.470
3101
0.5933
0.5106
0.4700
0.502
3102
0.2228
0.1909
0.1741
0.474
3103
0.2646
0.2291
0.2127
0.423
3104
0.6167
0.5329
0.4936
0.529
3105
0.6876
0.6006
0.5692
0.467
3303
0.3298
0.2833
0.2585
0.524
3304
0.5782
0.5020
0.4702
0.491
3309
0.3308
0.2842
0.2594
0.507
3402
0.3515
0.3039
0.2823
0.510
3403
0.1128
0.0971
0.0894
0.509
3404
0.4541
0.3908
0.3592
0.498
3405
0.2150
0.1856
0.1721
0.513
3406
0.2097
0.1809
0.1665
0.525
3407
0.6569
0.5620
0.5083
0.451
3408
0.2209
0.1886
0.1694
0.539
3409
0.1488
0.1283
0.1181
0.550
3410
0.1488
0.1283
0.1181
0.550
3411
0.3689
0.3166
0.2889
0.483
3412
0.5300
0.4532
0.4104
0.423
3414
0.6492
0.5557
0.5035
0.504
3415
1.1492
0.9831
0.8874
0.517
3501
0.2836
0.2477
0.2347
0.467
3503
0.2843
0.2450
0.2257
0.525
3506
0.5615
0.4823
0.4427
0.428
3509
0.4068
0.3480
0.3138
0.555
3510
0.3342
0.2902
0.2719
0.544
3511
0.6813
0.5908
0.5510
0.492
3512
0.3127
0.2711
0.2528
0.519
3513
0.3914
0.3367
0.3079
0.490
3602
0.0736
0.0637
0.0592
0.503
3603
0.3804
0.3300
0.3076
0.486
3604
0.7096
0.6145
0.5720
0.483
3605
0.3515
0.3039
0.2823
0.510
3701
0.2228
0.1909
0.1741
0.474
3702
0.2823
0.2435
0.2251
0.545
3708
0.4904
0.4240
0.3933
0.460
3802
0.1537
0.1334
0.1249
0.492
3808
0.3073
0.2648
0.2439
0.477
3901
0.1153
0.1002
0.0941
0.581
3902
0.4599
0.3977
0.3694
0.544
3903
0.6656
0.5755
0.5345
0.544
3905
0.1183
0.1031
0.0972
0.558
3906
0.4609
0.3987
0.3701
0.543
3909
0.2278
0.1971
0.1831
0.574
4101
0.1633
0.1413
0.1318
0.542
4103
0.5042
0.4365
0.4054
0.507
4107
0.1457
0.1246
0.1128
0.487
4108
0.1794
0.1540
0.1402
0.560
4109
0.1849
0.1604
0.1494
0.511
4201
0.6430
0.5437
0.4785
0.452
4301
0.6938
0.6023
0.5631
0.528
4302
0.6210
0.5354
0.4936
0.481
4304
0.6987
0.6130
0.5847
0.476
4305
0.9799
0.8351
0.7472
0.494
4401
0.3298
0.2833
0.2585
0.524
4402
0.5130
0.4395
0.3999
0.508
4404
0.4831
0.4194
0.3917
0.455
4501
0.1412
0.1214
0.1108
0.574
4502
0.0468
0.0403
0.0370
0.476
4504
0.1160
0.1010
0.0956
0.566
4802
0.4141
0.3594
0.3359
0.487
4803
0.4236
0.3683
0.3462
0.566
4804
0.4612
0.4007
0.3745
0.504
4805
0.3260
0.2840
0.2680
0.555
4806
0.1421
0.1227
0.1131
0.598
4808
0.4512
0.3911
0.3639
0.460
4809
0.2241
0.1944
0.1820
0.538
4810
0.2159
0.1876
0.1756
0.520
4811
0.4186
0.3670
0.3505
0.500
4812
0.3442
0.2981
0.2781
0.479
4813
0.3084
0.2684
0.2530
0.562
4814
0.1036
0.0912
0.0881
0.554
4815
0.2653
0.2323
0.2215
0.560
4816
0.3219
0.2852
0.2786
0.514
4900
0.1053
0.0905
0.0833
0.440
4901
0.0319
0.0273
0.0247
0.476
4902
0.0557
0.0477
0.0436
0.511
4903
0.1668
0.1420
0.1270
0.537
4904
0.0108
0.0093
0.0086
0.534
4905
0.3523
0.3058
0.2860
0.527
4906
0.0911
0.0778
0.0702
0.537
4907
0.0440
0.0385
0.0372
0.604
4908
0.0818
0.0721
0.0698
0.606
4909
0.0327
0.0288
0.0279
0.606
4910
0.3992
0.3434
0.3141
0.488
4911
0.0545
0.0467
0.0430
0.459
5001
5.6417
4.8481
4.4349
0.349
5002
0.4760
0.4073
0.3686
0.520
5003
2.0318
1.7405
1.5754
0.397
5004
0.8044
0.7061
0.6717
0.401
5005
0.7569
0.6488
0.5906
0.394
5006
0.9124
0.7809
0.7080
0.380
5101
0.6826
0.5835
0.5268
0.444
5103
0.7380
0.6391
0.5958
0.512
5106
0.7380
0.6391
0.5958
0.512
5108
0.6847
0.5834
0.5212
0.526
5109
0.3604
0.3081
0.2799
0.494
5201
0.2323
0.2002
0.1855
0.550
5204
0.8745
0.7412
0.6539
0.452
5206
0.2957
0.2552
0.2357
0.434
5207
0.1462
0.1269
0.1189
0.557
5208
0.4475
0.3867
0.3595
0.475
5209
0.4386
0.3783
0.3496
0.490
5300
0.0677
0.0582
0.0533
0.506
5301
0.0196
0.0168
0.0155
0.518
5302
0.0049
0.0042
0.0039
0.462
5305
0.0431
0.0369
0.0333
0.561
5306
0.0338
0.0291
0.0267
0.543
5307
0.5665
0.4839
0.4357
0.493
5308
0.0772
0.0670
0.0631
0.521
6103
0.0813
0.0707
0.0665
0.584
6104
0.3068
0.2643
0.2433
0.519
6105
0.4458
0.3798
0.3409
0.509
6107
0.1565
0.1366
0.1305
0.646
6108
0.2241
0.1946
0.1835
0.597
6109
0.1007
0.0861
0.0778
0.513
6110
0.3596
0.3064
0.2748
0.518
6120
0.2688
0.2293
0.2067
0.502
6121
0.3819
0.3256
0.2924
0.500
6201
0.4428
0.3791
0.3431
0.535
6202
0.7457
0.6435
0.5942
0.520
6203
0.0880
0.0772
0.0745
0.609
6204
0.1032
0.0898
0.0849
0.522
6205
0.1701
0.1469
0.1357
0.555
6206
0.1724
0.1491
0.1388
0.551
6207
0.7566
0.6566
0.6094
0.457
6208
0.1939
0.1700
0.1626
0.570
6209
0.2399
0.2096
0.1997
0.526
6301
0.1076
0.0928
0.0853
0.423
6303
0.0390
0.0336
0.0307
0.513
6305
0.0956
0.0827
0.0770
0.579
6306
0.3450
0.2961
0.2701
0.546
6308
0.0692
0.0593
0.0538
0.512
6309
0.1979
0.1706
0.1573
0.548
6402
0.2130
0.1847
0.1729
0.587
6403
0.1446
0.1245
0.1145
0.575
6404
0.2822
0.2445
0.2276
0.526
6405
0.5107
0.4385
0.4001
0.510
6406
0.1478
0.1273
0.1171
0.567
6407
0.2467
0.2127
0.1961
0.547
6408
0.5257
0.4546
0.4217
0.487
6409
0.5815
0.4987
0.4542
0.458
6410
0.2577
0.2215
0.2030
0.538
6411
0.0444
0.0387
0.0368
0.511
6501
0.0781
0.0666
0.0600
0.555
6502
0.0160
0.0138
0.0128
0.503
6503
0.0716
0.0605
0.0532
0.515
6504
0.2329
0.2026
0.1912
0.591
6505
0.1394
0.1210
0.1139
0.631
6506
0.1013
0.0871
0.0797
0.533
6509
0.2165
0.1881
0.1768
0.562
6510
0.3407
0.2898
0.2586
0.416
6511
0.2314
0.1996
0.1839
0.571
6512
0.0814
0.0701
0.0641
0.471
6601
0.1912
0.1649
0.1510
0.511
6602
0.5426
0.4708
0.4384
0.485
6603
0.2424
0.2102
0.1968
0.537
6604
0.0533
0.0461
0.0427
0.531
6605
0.2435
0.2097
0.1934
0.570
6607
0.1094
0.0946
0.0878
0.566
6608
0.3500
0.2971
0.2658
0.376
6620
3.1082
2.6294
2.3140
0.583
6704
0.1133
0.0972
0.0884
0.569
6705
0.7436
0.6514
0.6233
0.584
6706
0.2030
0.1771
0.1681
0.519
6707
8.1554
7.1356
6.8460
0.685
6708
7.8573
6.9564
6.7760
0.482
6709
0.2242
0.1933
0.1788
0.556
6801
0.6073
0.5095
0.4368
0.532
6802
0.8676
0.7404
0.6635
0.529
6803
0.4345
0.3669
0.3232
0.427
6804
0.2382
0.2043
0.1862
0.542
6809
2.7416
2.3850
2.2458
0.525
6901
0.0198
0.0193
0.0233
0.827
6902
0.6391
0.5498
0.5034
0.423
6903
2.7800
2.3910
2.2000
0.316
6904
1.2461
1.0538
0.9311
0.401
6905
0.9121
0.7653
0.6706
0.378
6906
0.3340
0.3091
0.3279
0.556
6907
0.6911
0.5956
0.5489
0.552
6908
0.3645
0.3144
0.2896
0.525
6909
0.0975
0.0841
0.0778
0.515
7100
0.0135
0.0116
0.0103
0.516
7101
0.0208
0.0177
0.0161
0.419
7103
0.9311
0.7921
0.7065
0.454
7104
0.0227
0.0196
0.0177
0.507
7105
0.0159
0.0136
0.0124
0.511
7106
0.2261
0.1948
0.1791
0.546
7107
0.3683
0.3152
0.2851
0.548
7108
0.3086
0.2646
0.2407
0.607
7109
0.0913
0.0784
0.0715
0.512
7110
0.3905
0.3360
0.3075
0.459
7111
0.2860
0.2411
0.2104
0.467
7112
0.6242
0.5417
0.5072
0.531
7113
0.4425
0.3788
0.3424
0.565
7114
0.7039
0.6064
0.5569
0.585
7115
0.5878
0.5088
0.4718
0.544
7116
0.5504
0.4717
0.4274
0.510
7117
0.8665
0.7470
0.6867
0.515
7118
1.2609
1.0836
0.9898
0.477
7119
1.5027
1.2845
1.1553
0.489
7120
4.8995
4.1755
3.7361
0.494
7121
5.2636
4.5244
4.1468
0.338
7122
0.3308
0.2880
0.2702
0.526
7200
2.0507
1.7353
1.5264
0.465
7201
1.5510
1.3148
1.1609
0.488
7202
0.0149
0.0128
0.0118
0.494
7203
0.0819
0.0719
0.0692
0.573
7204
0.0000
0.0000
0.0000
0.500
7205
0.0000
0.0000
0.0000
0.500
7301
0.5954
0.5217
0.4967
0.459
7302
0.8054
0.7057
0.6696
0.453
7307
0.3776
0.3264
0.3022
0.529
7308
0.2592
0.2250
0.2109
0.594
7309
0.1843
0.1607
0.1525
0.572
7400
2.3583
1.9955
1.7553
0.465
Expected Loss Rates in Dollars Per Sq. Ft.
of Wallboard Installed
Class
2021
2022
2023
Primary Ratio
540
0.0123
0.0106
0.0098
0.469
541
0.0062
0.0053
0.0049
0.445
550
0.0284
0.0245
0.0226
0.354
551
0.0096
0.0083
0.0077
0.361
[Statutory Authority: RCW 51.16.035, 51.32.073, 51.18.010, and 51.04.020(1). WSR 24-24-046, s 296-17-885, filed 11/26/24, effective 1/1/25; WSR 23-24-039, § 296-17-885, filed 11/30/23, effective 1/1/24; WSR 22-24-019, § 296-17-885, filed 11/30/22, effective 1/1/23; WSR 21-24-066, § 296-17-885, filed 11/30/21, effective 1/1/22; WSR 20-24-094, § 296-17-885, filed 11/30/20, effective 1/1/21; WSR 19-24-029, § 296-17-885, filed 11/25/19, effective 1/1/20; WSR 18-24-073, § 296-17-885, filed 11/30/18, effective 1/1/19; WSR 17-24-041, § 296-17-885, filed 11/30/17, effective 1/1/18; WSR 16-24-014, § 296-17-885, filed 11/29/16, effective 1/1/17; WSR 15-24-103, § 296-17-885, filed 12/1/15, effective 1/1/16; WSR 14-24-084, § 296-17-885, filed 12/1/14, effective 1/1/15; WSR 13-24-073, § 296-17-885, filed 11/30/13, effective 1/1/14. Statutory Authority: RCW 51.16.035, 51.32.073, 51.08.010, and 51.04.020(1). WSR 12-24-048, § 296-17-885, filed 11/30/12, effective 1/1/13; WSR 11-24-026, § 296-17-885, 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, § 296-17-885, filed 1/28/11, effective 2/28/11; WSR 09-24-086, § 296-17-885, filed 11/30/09, effective 1/1/10; WSR 08-24-074, § 296-17-885, filed 12/1/08, effective 1/1/09; WSR 07-24-046, § 296-17-885, filed 12/1/07, effective 1/1/08; WSR 06-24-054, § 296-17-885, 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, § 296-17-885, filed 11/22/05, effective 1/1/06; WSR 04-24-025, § 296-17-885, filed 11/23/04, effective 1/1/05. Statutory Authority: RCW 51.04.020, 51.16.035, 51.32.073, and 51.18.010. WSR 03-24-066, § 296-17-885, 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, § 296-17-885, 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, § 296-17-885, filed 11/20/01, effective 1/1/02; WSR 00-23-101, § 296-17-885, filed 11/21/00, effective 1/1/01. Statutory Authority: RCW 51.16.035, 51.04.020. WSR 00-14-052, § 296-17-885, 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, § 296-17-885, filed 11/29/99, effective 12/31/99; WSR 98-24-094, § 296-17-885, filed 12/1/98, effective 1/1/99; WSR 97-24-062, § 296-17-885, filed 12/1/97, effective 1/1/98; WSR 96-24-063, § 296-17-885, filed 11/29/96, effective 1/1/97. Statutory Authority: RCW 51.16.035. WSR 96-12-039, § 296-17-885, filed 5/31/96, effective 7/1/96. Statutory Authority: RCW 51.04.020. WSR 95-23-080, § 296-17-885, filed 11/20/95, effective 1/1/96; WSR 94-24-007, § 296-17-885, filed 11/28/94, effective 1/1/95; WSR 93-24-114, § 296-17-885, filed 12/1/93, effective 1/1/94. Statutory Authority: RCW 51.04.020(1) and 51.16.035. WSR 92-24-063, § 296-17-885, filed 11/30/92, effective 1/1/93; WSR 91-24-053, § 296-17-885, filed 11/27/91, effective 1/1/92; WSR 91-12-014, § 296-17-885, filed 5/31/91, effective 7/1/91; WSR 90-24-042, § 296-17-885, filed 11/30/90, effective 1/1/91; WSR 90-13-018, § 296-17-885, filed 6/8/90, effective 7/9/90; WSR 89-24-051 (Order 89-22), § 296-17-885, filed 12/1/89, effective 1/1/90. Statutory Authority: RCW 51.04.020(1). WSR 89-16-001 (Order 89-07), § 296-17-885, 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), § 296-17-885, filed 12/1/88, effective 1/1/89. Statutory Authority: RCW 51.16.035. WSR 88-12-065 (Order 88-05), § 296-17-885, filed 5/31/88; WSR 88-12-050 (Order 88-06), § 296-17-885, filed 5/31/88, effective 7/1/88; WSR 88-06-047 (Order 87-33), § 296-17-885, filed 3/1/88; WSR 87-24-060 (Order 87-26), § 296-17-885, filed 12/1/87, effective 1/1/88; WSR 87-12-032 (Order 87-12), § 296-17-885, 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), § 296-17-885, filed 11/26/86. Statutory Authority: RCW 51.16.035. WSR 86-12-041 (Order 86-18), § 296-17-885, filed 5/30/86, effective 7/1/86; WSR 85-24-032 (Order 85-33), § 296-17-885, filed 11/27/85, effective 1/1/86; WSR 85-06-026 (Order 85-7), § 296-17-885, filed 2/28/85, effective 4/1/85; WSR 84-24-016 (Order 84-23), § 296-17-885, filed 11/28/84, effective 1/1/85; WSR 83-24-017 (Order 83-36), § 296-17-885, filed 11/30/83, effective 1/1/84; WSR 82-24-047 (Order 82-38), § 296-17-885, filed 11/29/82, effective 1/1/83; WSR 81-24-042 (Order 81-30), § 296-17-885, filed 11/30/81, effective 1/1/82; WSR 80-17-016 (Order 80-23), § 296-17-885, 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), § 296-17-885, 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), § 296-17-885, filed 11/27/78, effective 1/1/79, effective 1/1/80. Order 77-27, § 296-17-885, filed 11/30/77, effective 1/1/78; Emergency Order 77-25, § 296-17-885, filed 12/1/77; Order 77-10, § 296-17-885, filed 5/31/77; Order 76-36, § 296-17-885, filed 11/30/76; Order 76-18, § 296-17-885, filed 5/28/76, effective 7/1/76; Order 75-38, § 296-17-885, filed 11/24/75, effective 1/1/76; Order 74-40, § 296-17-885, filed 11/27/74, effective 1/1/75; Order 73-22, § 296-17-885, filed 11/9/73, effective 1/1/74.]