RETROSPECTIVE RATING PLAN A2
MINIMUM PREMIUM RATIOS
AND BASIC PREMIUM RATIOS
LOSS CONVERSION FACTOR = .729
Effective January 1, 2006
| Maximum Premium Ratio: | 1.05 | 1.10 | 1.15 | 1.20 | 1.25 | 1.30 | 1.35 | 1.40 | 1.45 | 1.50 | 1.60 | 1.70 | 1.80 | 2.00 |
Size
Group | | | | | | | | | | | | | | |
| 63 | Basic Premium Ratio | .483 | .457 | .439 | .425 | .412 | .402 | .392 | .383 | .375 | .368 | .354 | .342 | .330 | .311 |
| | Minimum Premium Ratio | .979 | .960 | .943 | .927 | .912 | .898 | .884 | .871 | .859 | .846 | .823 | .802 | .782 | .745
|
| 62 | Basic Premium Ratio | .480 | .454 | .436 | .421 | .408 | .397 | .387 | .378 | .370 | .362 | .348 | .335 | .324 | .304 |
| | Minimum Premium Ratio | .978 | .959 | .941 | .925 | .909 | .894 | .880 | .867 | .854 | .841 | .818 | .796 | .775 | .738
|
| 61 | Basic Premium Ratio | .478 | .451 | .432 | .416 | .403 | .392 | .382 | .373 | .364 | .356 | .342 | .329 | .318 | .297 |
| | Minimum Premium Ratio | .977 | .957 | .939 | .922 | .906 | .891 | .876 | .862 | .849 | .836 | .811 | .789 | .768 | .730
|
| 60 | Basic Premium Ratio | .475 | .448 | .428 | .412 | .399 | .387 | .377 | .367 | .358 | .350 | .336 | .323 | .311 | .290 |
| | Minimum Premium Ratio | .976 | .955 | .936 | .919 | .902 | .886 | .871 | .857 | .843 | .830 | .805 | .781 | .760 | .721
|
| 59 | Basic Premium Ratio | .473 | .445 | .424 | .408 | .394 | .382 | .371 | .362 | .353 | .344 | .329 | .316 | .304 | .283 |
| | Minimum Premium Ratio | .975 | .954 | .934 | .916 | .898 | .882 | .867 | .852 | .837 | .824 | .798 | .774 | .752 | .713
|
| 58 | Basic Premium Ratio | .471 | .442 | .421 | .404 | .389 | .377 | .366 | .356 | .347 | .338 | .323 | .310 | .298 | .277 |
| | Minimum Premium Ratio | .974 | .952 | .931 | .912 | .895 | .878 | .862 | .847 | .832 | .818 | .792 | .767 | .745 | .704
|
| 57 | Basic Premium Ratio | .468 | .438 | .417 | .399 | .385 | .372 | .361 | .351 | .341 | .333 | .317 | .303 | .291 | .270 |
| | Minimum Premium Ratio | .973 | .950 | .929 | .909 | .891 | .874 | .857 | .842 | .827 | .813 | .786 | .761 | .738 | .697
|
| 56 | Basic Premium Ratio | .465 | .434 | .412 | .395 | .380 | .367 | .355 | .345 | .335 | .326 | .311 | .297 | .285 | .263 |
| | Minimum Premium Ratio | .972 | .948 | .926 | .906 | .887 | .870 | .853 | .837 | .822 | .807 | .780 | .755 | .731 | .690
|
| 55 | Basic Premium Ratio | .462 | .430 | .408 | .390 | .374 | .361 | .349 | .339 | .329 | .320 | .304 | .290 | .278 | .257 |
| | Minimum Premium Ratio | .971 | .946 | .924 | .903 | .884 | .866 | .849 | .832 | .817 | .802 | .774 | .749 | .725 | .683
|
| 54 | Basic Premium Ratio | .458 | .426 | .403 | .384 | .369 | .355 | .343 | .333 | .323 | .314 | .298 | .284 | .271 | .250 |
| | Minimum Premium Ratio | .970 | .945 | .922 | .900 | .880 | .862 | .844 | .827 | .812 | .797 | .768 | .743 | .719 | .677
|
| 53 | Basic Premium Ratio | .455 | .422 | .398 | .379 | .363 | .350 | .337 | .327 | .317 | .307 | .291 | .277 | .265 | .244 |
| | Minimum Premium Ratio | .969 | .943 | .919 | .897 | .877 | .858 | .840 | .823 | .807 | .792 | .763 | .737 | .713 | .671
|
| 52 | Basic Premium Ratio | .451 | .417 | .393 | .374 | .358 | .344 | .332 | .320 | .310 | .301 | .285 | .271 | .258 | .238 |
| | Minimum Premium Ratio | .968 | .941 | .917 | .895 | .874 | .854 | .836 | .819 | .803 | .787 | .758 | .732 | .709 | .666
|
| 51 | Basic Premium Ratio | .447 | .413 | .388 | .369 | .352 | .338 | .325 | .314 | .304 | .295 | .278 | .264 | .252 | .232 |
| | Minimum Premium Ratio | .967 | .939 | .914 | .891 | .870 | .851 | .832 | .815 | .798 | .782 | .753 | .727 | .703 | .660
|
| 50 | Basic Premium Ratio | .443 | .408 | .383 | .363 | .346 | .332 | .319 | .308 | .298 | .288 | .272 | .258 | .245 | .225 |
| | Minimum Premium Ratio | .966 | .937 | .912 | .888 | .867 | .846 | .828 | .810 | .793 | .777 | .747 | .721 | .697 | .654
|
| 49 | Basic Premium Ratio | .440 | .403 | .378 | .357 | .340 | .326 | .313 | .301 | .291 | .282 | .265 | .251 | .239 | .219 |
| | Minimum Premium Ratio | .965 | .935 | .909 | .885 | .863 | .842 | .823 | .805 | .788 | .772 | .742 | .715 | .690 | .647
|
| 48 | Basic Premium Ratio | .436 | .399 | .372 | .352 | .334 | .320 | .307 | .295 | .285 | .275 | .259 | .245 | .232 | .213 |
| | Minimum Premium Ratio | .964 | .933 | .907 | .882 | .860 | .839 | .819 | .801 | .783 | .767 | .737 | .710 | .685 | .641
|
| 47 | Basic Premium Ratio | .431 | .394 | .367 | .346 | .328 | .313 | .300 | .289 | .278 | .269 | .252 | .238 | .226 | .207 |
| | Minimum Premium Ratio | .962 | .931 | .904 | .879 | .856 | .835 | .816 | .797 | .780 | .763 | .733 | .706 | .681 | .637
|
| 46 | Basic Premium Ratio | .427 | .388 | .361 | .339 | .321 | .306 | .293 | .282 | .271 | .262 | .246 | .232 | .220 | .201 |
| | Minimum Premium Ratio | .961 | .929 | .901 | .876 | .853 | .832 | .812 | .793 | .776 | .760 | .729 | .702 | .678 | .635
|
| 45 | Basic Premium Ratio | .423 | .383 | .354 | .333 | .315 | .300 | .286 | .275 | .265 | .255 | .239 | .226 | .215 | .196 |
| | Minimum Premium Ratio | .960 | .927 | .899 | .873 | .850 | .829 | .809 | .790 | .773 | .757 | .727 | .700 | .675 | .633
|
| 44 | Basic Premium Ratio | .418 | .377 | .348 | .326 | .308 | .293 | .280 | .268 | .258 | .249 | .233 | .220 | .209 | .191 |
| | Minimum Premium Ratio | .958 | .925 | .897 | .871 | .848 | .826 | .806 | .788 | .771 | .754 | .725 | .698 | .674 | .631
|
| 43 | Basic Premium Ratio | .413 | .371 | .342 | .319 | .301 | .286 | .273 | .262 | .252 | .243 | .227 | .215 | .204 | .186 |
| | Minimum Premium Ratio | .957 | .924 | .895 | .869 | .846 | .824 | .804 | .786 | .768 | .752 | .723 | .696 | .672 | .630
|
| 42 | Basic Premium Ratio | .408 | .365 | .335 | .313 | .294 | .279 | .266 | .255 | .245 | .236 | .221 | .208 | .197 | .180 |
| | Minimum Premium Ratio | .956 | .921 | .892 | .865 | .842 | .820 | .799 | .781 | .763 | .747 | .716 | .690 | .666 | .623
|
| 41 | Basic Premium Ratio | .403 | .359 | .329 | .306 | .288 | .272 | .259 | .248 | .238 | .229 | .213 | .201 | .190 | .173 |
| | Minimum Premium Ratio | .954 | .919 | .889 | .862 | .837 | .815 | .794 | .775 | .757 | .740 | .710 | .683 | .659 | .616
|
| 40 | Basic Premium Ratio | .398 | .353 | .322 | .299 | .281 | .265 | .252 | .241 | .231 | .222 | .207 | .194 | .184 | .167 |
| | Minimum Premium Ratio | .953 | .917 | .886 | .858 | .833 | .810 | .789 | .770 | .752 | .735 | .704 | .677 | .651 | .609
|
| 39 | Basic Premium Ratio | .392 | .347 | .316 | .292 | .274 | .258 | .245 | .234 | .224 | .215 | .200 | .188 | .177 | .161 |
| | Minimum Premium Ratio | .951 | .914 | .883 | .855 | .829 | .806 | .785 | .765 | .747 | .730 | .699 | .671 | .646 | .603
|
| 38 | Basic Premium Ratio | .386 | .340 | .309 | .286 | .267 | .252 | .238 | .227 | .217 | .209 | .194 | .182 | .171 | .155 |
| | Minimum Premium Ratio | .950 | .913 | .880 | .852 | .826 | .802 | .781 | .761 | .743 | .725 | .694 | .666 | .641 | .598
|
| 37 | Basic Premium Ratio | .380 | .333 | .302 | .279 | .260 | .245 | .232 | .221 | .211 | .202 | .188 | .176 | .166 | .150 |
| | Minimum Premium Ratio | .949 | .911 | .878 | .849 | .823 | .800 | .778 | .757 | .739 | .722 | .690 | .661 | .636 | .593
|
| 36 | Basic Premium Ratio | .373 | .326 | .295 | .272 | .253 | .238 | .225 | .214 | .204 | .196 | .181 | .170 | .160 | .145 |
| | Minimum Premium Ratio | .948 | .909 | .876 | .847 | .821 | .797 | .775 | .755 | .736 | .718 | .687 | .658 | .634 | .590
|
| 35 | Basic Premium Ratio | .366 | .318 | .287 | .264 | .246 | .230 | .218 | .207 | .197 | .189 | .175 | .164 | .154 | .140 |
| | Minimum Premium Ratio | .947 | .908 | .874 | .845 | .818 | .795 | .773 | .752 | .734 | .716 | .685 | .656 | .632 | .588
|
| 34 | Basic Premium Ratio | .358 | .310 | .279 | .256 | .238 | .223 | .211 | .200 | .191 | .183 | .169 | .158 | .149 | .135 |
| | Minimum Premium Ratio | .946 | .906 | .873 | .844 | .817 | .793 | .771 | .751 | .732 | .714 | .683 | .655 | .630 | .587
|
| 33 | Basic Premium Ratio | .349 | .302 | .271 | .249 | .231 | .216 | .204 | .194 | .184 | .177 | .163 | .153 | .144 | .130 |
| | Minimum Premium Ratio | .945 | .906 | .872 | .842 | .816 | .792 | .770 | .750 | .732 | .714 | .683 | .655 | .630 | .588
|
| 32 | Basic Premium Ratio | .341 | .294 | .263 | .241 | .224 | .209 | .197 | .187 | .178 | .171 | .158 | .148 | .139 | .126 |
| | Minimum Premium Ratio | .945 | .905 | .872 | .842 | .816 | .792 | .770 | .750 | .732 | .714 | .683 | .655 | .631 | .589
|
| 31 | Basic Premium Ratio | .333 | .285 | .255 | .233 | .216 | .202 | .190 | .180 | .172 | .164 | .152 | .142 | .134 | .122 |
| | Minimum Premium Ratio | .944 | .904 | .870 | .841 | .814 | .790 | .769 | .749 | .730 | .714 | .683 | .656 | .633 | .591
|
| 30 | Basic Premium Ratio | .324 | .277 | .247 | .225 | .208 | .195 | .183 | .174 | .166 | .159 | .147 | .137 | .130 | .118 |
| | Minimum Premium Ratio | .943 | .902 | .869 | .840 | .814 | .790 | .769 | .748 | .730 | .713 | .683 | .658 | .634 | .595
|
| 29 | Basic Premium Ratio | .315 | .268 | .239 | .218 | .201 | .188 | .177 | .168 | .160 | .153 | .142 | .133 | .126 | .115 |
| | Minimum Premium Ratio | .942 | .902 | .868 | .839 | .813 | .790 | .769 | .749 | .731 | .715 | .685 | .659 | .637 | .599
|
| 28 | Basic Premium Ratio | .306 | .260 | .231 | .210 | .194 | .181 | .170 | .161 | .153 | .147 | .136 | .127 | .120 | .109 |
| | Minimum Premium Ratio | .942 | .901 | .867 | .838 | .811 | .788 | .766 | .747 | .729 | .711 | .681 | .655 | .632 | .593
|
| 27 | Basic Premium Ratio | .298 | .252 | .223 | .202 | .186 | .173 | .163 | .153 | .146 | .139 | .128 | .119 | .112 | .101 |
| | Minimum Premium Ratio | .940 | .898 | .864 | .833 | .806 | .781 | .758 | .738 | .718 | .700 | .668 | .640 | .614 | .571
|
| 26 | Basic Premium Ratio | .290 | .244 | .216 | .195 | .179 | .166 | .155 | .146 | .138 | .132 | .121 | .112 | .105 | .094 |
| | Minimum Premium Ratio | .939 | .896 | .860 | .829 | .801 | .775 | .752 | .731 | .711 | .691 | .657 | .627 | .599 | .553
|
| 25 | Basic Premium Ratio | .281 | .236 | .208 | .188 | .172 | .159 | .148 | .139 | .132 | .125 | .114 | .105 | .098 | .088 |
| | Minimum Premium Ratio | .938 | .895 | .858 | .826 | .797 | .771 | .747 | .725 | .704 | .685 | .650 | .619 | .592 | .542
|
| 24 | Basic Premium Ratio | .270 | .226 | .199 | .179 | .164 | .152 | .142 | .133 | .126 | .120 | .110 | .102 | .095 | .086 |
| | Minimum Premium Ratio | .938 | .894 | .858 | .827 | .798 | .773 | .749 | .729 | .708 | .689 | .655 | .625 | .600 | .551
|
| 23 | Basic Premium Ratio | .259 | .216 | .190 | .171 | .156 | .145 | .136 | .128 | .121 | .115 | .106 | .098 | .093 | .084 |
| | Minimum Premium Ratio | .938 | .895 | .860 | .829 | .802 | .777 | .753 | .733 | .714 | .697 | .663 | .636 | .608 | .564
|
| 22 | Basic Premium Ratio | .248 | .207 | .181 | .163 | .150 | .139 | .130 | .123 | .116 | .111 | .102 | .095 | .090 | .082 |
| | Minimum Premium Ratio | .938 | .896 | .862 | .832 | .805 | .781 | .760 | .739 | .722 | .704 | .674 | .648 | .622 | .580
|
| 21 | Basic Premium Ratio | .236 | .197 | .173 | .156 | .143 | .133 | .125 | .118 | .112 | .107 | .099 | .093 | .088 | .080 |
| | Minimum Premium Ratio | .940 | .899 | .865 | .836 | .811 | .787 | .766 | .747 | .730 | .714 | .685 | .659 | .636 | .599
|
| 20 | Basic Premium Ratio | .226 | .188 | .165 | .149 | .136 | .126 | .119 | .112 | .107 | .102 | .094 | .089 | .084 | .077 |
| | Minimum Premium Ratio | .939 | .898 | .865 | .835 | .810 | .788 | .766 | .748 | .730 | .715 | .689 | .662 | .642 | .607
|
| 19 | Basic Premium Ratio | .218 | .180 | .156 | .140 | .128 | .119 | .111 | .105 | .100 | .096 | .089 | .084 | .080 | .074 |
| | Minimum Premium Ratio | .937 | .894 | .860 | .830 | .804 | .781 | .761 | .742 | .724 | .708 | .680 | .655 | .633 | .597
|
| 18 | Basic Premium Ratio | .208 | .171 | .148 | .133 | .121 | .112 | .105 | .099 | .095 | .091 | .084 | .080 | .076 | .071 |
| | Minimum Premium Ratio | .935 | .892 | .857 | .826 | .800 | .777 | .756 | .737 | .718 | .703 | .677 | .651 | .631 | .594
|
| 17 | Basic Premium Ratio | .199 | .162 | .140 | .125 | .115 | .106 | .099 | .094 | .090 | .086 | .081 | .076 | .073 | .069 |
| | Minimum Premium Ratio | .934 | .891 | .856 | .826 | .798 | .775 | .755 | .736 | .717 | .703 | .673 | .653 | .631 | .592
|
| 16 | Basic Premium Ratio | .189 | .154 | .133 | .119 | .109 | .101 | .095 | .090 | .086 | .082 | .077 | .073 | .071 | .067 |
| | Minimum Premium Ratio | .934 | .890 | .855 | .825 | .798 | .775 | .754 | .736 | .719 | .706 | .679 | .658 | .633 | .598
|
| 15 | Basic Premium Ratio | .181 | .146 | .126 | .113 | .103 | .096 | .090 | .086 | .082 | .079 | .075 | .071 | .069 | .065 |
| | Minimum Premium Ratio | .933 | .889 | .855 | .826 | .801 | .778 | .759 | .739 | .724 | .710 | .682 | .663 | .641 | .613
|
| 14 | Basic Premium Ratio | .176 | .139 | .119 | .108 | .100 | .093 | .088 | .084 | .081 | .078 | .074 | .070 | .068 | .065 |
| | Minimum Premium Ratio | .924 | .878 | .850 | .821 | .796 | .775 | .755 | .737 | .720 | .706 | .679 | .663 | .642 | .608
|
| 13 | Basic Premium Ratio | .170 | .131 | .113 | .103 | .096 | .090 | .085 | .082 | .079 | .076 | .072 | .070 | .067 | .064 |
| | Minimum Premium Ratio | .915 | .868 | .844 | .818 | .793 | .772 | .754 | .735 | .719 | .706 | .682 | .656 | .643 | .612
|
| 12 | Basic Premium Ratio | .164 | .123 | .107 | .099 | .092 | .087 | .083 | .080 | .077 | .075 | .071 | .069 | .067 | .064 |
| | Minimum Premium Ratio | .904 | .860 | .839 | .812 | .791 | .770 | .751 | .732 | .718 | .702 | .680 | .655 | .637 | .606
|
| 11 | Basic Premium Ratio | .156 | .113 | .102 | .094 | .089 | .084 | .081 | .078 | .075 | .073 | .070 | .068 | .066 | .063 |
| | Minimum Premium Ratio | .892 | .859 | .834 | .811 | .786 | .768 | .747 | .730 | .718 | .704 | .678 | .655 | .638 | .612
|
| 10 | Basic Premium Ratio | .148 | .104 | .097 | .090 | .086 | .082 | .078 | .076 | .074 | .072 | .069 | .067 | .065 | .063 |
| | Minimum Premium Ratio | .876 | .858 | .829 | .807 | .782 | .762 | .748 | .728 | .712 | .699 | .676 | .654 | .640 | .605
|
| 9 | Basic Premium Ratio | .139 | .098 | .092 | .087 | .082 | .079 | .076 | .074 | .072 | .070 | .068 | .066 | .065 | .062 |
| | Minimum Premium Ratio | .856 | .853 | .825 | .800 | .782 | .761 | .744 | .727 | .712 | .702 | .674 | .654 | .631 | .612
|
| 8 | Basic Premium Ratio | .106 | .093 | .087 | .083 | .079 | .076 | .074 | .072 | .070 | .069 | .067 | .065 | .064 | .062 |
| | Minimum Premium Ratio | .855 | .846 | .823 | .798 | .779 | .761 | .741 | .725 | .713 | .697 | .671 | .654 | .633 | .604
|
| 7 | Basic Premium Ratio | .097 | .088 | .083 | .079 | .076 | .074 | .072 | .070 | .069 | .068 | .066 | .064 | .063 | .061 |
| | Minimum Premium Ratio | .855 | .840 | .818 | .797 | .777 | .756 | .738 | .725 | .707 | .691 | .668 | .655 | .636 | .613
|
| 6 | Basic Premium Ratio | .089 | .083 | .079 | .076 | .074 | .072 | .070 | .068 | .067 | .066 | .065 | .063 | .062 | .061 |
| | Minimum Premium Ratio | .855 | .836 | .814 | .792 | .768 | .749 | .735 | .725 | .709 | .696 | .664 | .656 | .640 | .602
|
| 5 | Basic Premium Ratio | .082 | .078 | .075 | .073 | .071 | .069 | .068 | .067 | .066 | .065 | .063 | .062 | .062 | .061 |
| | Minimum Premium Ratio | .855 | .833 | .811 | .787 | .767 | .752 | .732 | .714 | .700 | .689 | .677 | .658 | .624 | .586
|
| 4 | Basic Premium Ratio | .077 | .074 | .071 | .070 | .068 | .067 | .066 | .065 | .064 | .063 | .062 | .062 | .061 | .061 |
| | Minimum Premium Ratio | .855 | .830 | .811 | .782 | .767 | .752 | .729 | .714 | .700 | .689 | .677 | .658 | .624 | .586
|
[Statutory Authority: RCW 51.04.020, 51.16.035, and 51.32.073. 05-23-162, § 296-17-90495, filed 11/22/05, effective 1/1/06. Statutory Authority: RCW 51.04.020, 51.16.035, 51.32.073, and 51.18.010. 03-24-066, § 296-17-90495, 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). 02-24-029, § 296-17-90495, filed 11/27/02, effective 1/1/03. Statutory Authority: RCW 51.04.020, 51.16.035, 51.32.073, 51.18.010. 01-23-061, § 296-17-90495, filed 11/20/01, effective 1/1/02; 00-23-101, § 296-17-90495, filed 11/21/00, effective 1/1/01. Statutory Authority: RCW 51.18.010. 00-11-060, § 296-17-90495, filed 5/12/00, effective 7/1/00.]