Maximum Experience Modifications
For Firms with No Compensable Accidents:
Effective January 1, 2026
Expected Loss Range | Maximum Experience Modification | |||
1 | - | 5,571 | 0.90 | |
5,572 | - | 6,802 | 0.89 | |
6,803 | - | 7,502 | 0.88 | |
7,503 | - | 8,202 | 0.87 | |
8,203 | - | 8,902 | 0.86 | |
8,903 | - | 9,602 | 0.85 | |
9,603 | - | 10,302 | 0.84 | |
10,303 | - | 11,002 | 0.83 | |
11,003 | - | 11,702 | 0.82 | |
11,703 | - | 12,431 | 0.81 | |
12,432 | - | 13,189 | 0.80 | |
13,190 | - | 13,977 | 0.79 | |
13,978 | - | 14,794 | 0.78 | |
14,795 | - | 15,642 | 0.77 | |
15,643 | - | 16,519 | 0.76 | |
16,520 | - | 17,425 | 0.75 | |
17,426 | - | 18,362 | 0.74 | |
18,363 | - | 19,328 | 0.73 | |
19,329 | - | 20,324 | 0.72 | |
20,325 | - | 21,349 | 0.71 | |
21,350 | - | 22,405 | 0.70 | |
22,406 | - | 23,490 | 0.69 | |
23,491 | - | 24,605 | 0.68 | |
24,606 | - | 25,749 | 0.67 | |
25,750 | - | 26,923 | 0.66 | |
26,924 | - | 28,127 | 0.65 | |
28,128 | - | 29,933 | 0.64 | |
29,934 | - | 32,642 | 0.63 | |
32,643 | - | 36,706 | 0.62 | |
36,707 | - | 42,801 | 0.61 | |
42,802 | and higher | 0.60 | ||
[Statutory Authority: RCW 51.16.035, 51.32.073, 51.18.010, and 51.04.020(1). WSR 25-24-041, s 296-17-890, filed 11/26/25, effective 1/1/26; WSR 24-24-046, s 296-17-890, filed 11/26/24, effective 1/1/25; WSR 23-24-039, § 296-17-890, filed 11/30/23, effective 1/1/24; WSR 22-24-019, § 296-17-890, filed 11/30/22, effective 1/1/23; WSR 21-24-066, § 296-17-890, filed 11/30/21, effective 1/1/22; WSR 20-24-094, § 296-17-890, filed 11/30/20, effective 1/1/21; WSR 19-24-029, § 296-17-890, filed 11/25/19, effective 1/1/20; WSR 18-24-073, § 296-17-890, filed 11/30/18, effective 1/1/19; WSR 17-24-041, § 296-17-890, filed 11/30/17, effective 1/1/18; WSR 16-24-014, § 296-17-890, filed 11/29/16, effective 1/1/17; WSR 15-24-103, § 296-17-890, filed 12/1/15, effective 1/1/16; WSR 14-24-084, § 296-17-890, filed 12/1/14, effective 1/1/15; WSR 13-24-073, § 296-17-890, 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, § 296-17-890, filed 11/30/12, effective 1/1/13; WSR 11-24-026, § 296-17-890, 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, § 296-17-890, filed 1/28/11, effective 2/28/11; WSR 09-24-086, § 296-17-890, filed 11/30/09, effective 1/1/10; WSR 08-24-074, § 296-17-890, filed 12/1/08, effective 1/1/09; WSR 07-24-046, § 296-17-890, filed 12/1/07, effective 1/1/08; WSR 06-24-054, § 296-17-890, 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, § 296-17-890, filed 11/22/05, effective 1/1/06; WSR 04-24-025, § 296-17-890, 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, § 296-17-890, 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, § 296-17-890, 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, § 296-17-890, filed 11/20/01, effective 1/1/02; WSR 00-23-101, § 296-17-890, filed 11/21/00, effective 1/1/01. Statutory Authority: RCW 51.04.020, 51.16.035 and 51.32.073. WSR 99-24-055, § 296-17-890, filed 11/29/99, effective 12/31/99; WSR 98-24-094, § 296-17-890, filed 12/1/98, effective 1/1/99; WSR 97-24-062, § 296-17-890, filed 12/1/97, effective 1/1/98; WSR 96-24-063, § 296-17-890, filed 11/29/96, effective 1/1/97. Statutory Authority: RCW 51.04.020. WSR 95-23-080, § 296-17-890, filed 11/20/95, effective 1/1/96; WSR 94-24-007, § 296-17-890, filed 11/28/94, effective 1/1/95; WSR 93-24-114, § 296-17-890, filed 12/1/93, effective 1/1/94. Statutory Authority: RCW 51.04.020(1) and 51.16.035. WSR 92-24-063, § 296-17-890, filed 11/30/92, effective 1/1/93; WSR 91-24-053, § 296-17-890, filed 11/27/91, effective 1/1/92; WSR 90-24-042, § 296-17-890, filed 11/30/90, effective 1/1/91; WSR 89-24-051 (Order 89-22), § 296-17-890, filed 12/1/89, effective 1/1/90. Statutory Authority: RCW 51.16.035 and 51.04.020. WSR 88-24-012 (Order 88-30), § 296-17-890, filed 12/1/88, effective 1/1/89. Statutory Authority: RCW 51.16.035. WSR 87-24-060 (Order 87-26), § 296-17-890, filed 12/1/87, effective 1/1/88. Statutory Authority: RCW 51.04.020(1) and 51.16.035. WSR 86-24-042 (Order 86-41), § 296-17-890, filed 11/26/86. Statutory Authority: RCW 51.16.035. WSR 85-24-032 (Order 85-33), § 296-17-890, filed 11/27/85, effective 1/1/86; WSR 84-24-016 (Order 84-23), § 296-17-890, filed 11/28/84, effective 1/1/85; WSR 83-24-017 (Order 83-36), § 296-17-890, filed 11/30/83, effective 1/1/84; WSR 82-24-047 (Order 82-38), § 296-17-890, filed 11/29/82, effective 1/1/83; WSR 81-24-042 (Order 81-30), § 296-17-890, filed 11/30/81, effective 1/1/82; WSR 80-17-016 (Order 80-23), § 296-17-890, 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), § 296-17-890, filed 11/30/79, effective 1/1/80.]