WAC 458-40-680 — Timber Excise Tax—Volume Harvested—Approved Scaling and Grading Methods—Sample Scaling—Conversions

Agency filings affecting this section (1) Introduction. The acceptable log scaling and grading standard for stumpage value areas 1, 2, 3, 4, 5, and 9 is the Scribner Decimal C log rule as described in the most current edition of the "Official Log Scaling and Grading Rules" developed and authored by the Northwest Log Rules Advisory Group. The acceptable log scaling standard for stumpage value areas 6 and 7 is the Scribner Decimal C log rule described in the most current edition of the "Eastside Log Scaling Handbook" as published by the Northwest Log Rules Advisory Group, except that timber harvested in stumpage value areas 6 and 7 must be scaled using the current regional taper rules at the point of origin. (2) Special services scaling. Special services scaling as described in the "Official Log Scaling and Grading Rules" developed and authored by the Northwest Log Rules Advisory Group may not be used for tax reporting purposes without prior written approval of the department of revenue. (3) Sample scaling. Sample scaling may not be used for tax reporting purposes without prior written approval of the department of revenue. To be approved, sample scaling must be in accordance with the following guidelines: (a) Sample selection, scaling, and grading must be conducted on a continuous basis as the unit is harvested. (b) The sample must be taken in such a manner to assure random, unbiased sample selection in accordance with accepted statistical tests of sampling. (c) The sample used to determine total volume, species, and quality of timber harvested for a given reporting period must have been taken during that period. (d) Sample frequency must be large enough to meet board foot variation accuracy limits of plus or minus two and five-tenths percent standard error at the ninety-five percent confidence level. (e) Harvesters, or a purchaser with an approved sample scaling method, must maintain sufficient supporting documentation to allow the department of revenue to verify source data, and test statistical reliability of sample scale systems. (f) Exceptions: Sampling designs and accuracy standards other than those described herein may only be used with the prior written approval of the department of revenue. (4) Conversions to Scribner Decimal C Scale. The following definitions, tables, and conversion factors must be used in determining taxable volume for timber harvested that was not originally scaled by the Scribner Decimal C Log Rule. Conversion methods other than those listed are not to be used for tax reporting purposes without prior written approval of the department of revenue. Harvesters who wish to use a method of conversion other than those listed below must obtain written approval from the department of revenue before harvesting. Purchasers may obtain written approval of a sample scaling method from the department of revenue. The department will maintain a list of purchasers with an approved sample scaling method. A harvester may obtain this list and a summary of the approved method for specific purchasers from the department of revenue. If a harvester has not obtained approval of a sample scaling method before harvesting, the harvester may use a purchaser's approved sample scaling method. If the harvester, or purchaser, fails to use an approved sample scaling method or other method of conversion approved by these rules to set the purchase price, the department will establish its own method, as the circumstances require, to determine a reasonable estimate of the volume of timber sold. (a) Weight measurement. If the sole unit of measure used to set the purchase price for logs from harvest units was weight, and the harvester does not use an approved method of sample scaling to determine volume for the stumpage value tables, the following tables must be used for converting to Scribner Decimal C, if the harvest volume per species meets the definition listed in the table. If weight is the sole measure used for a harvest unit and the harvest volume per species does not meet the definition listed in the table below, the department will establish its own method, as the circumstances require, to determine a reasonable estimate of the volume of timber sold. Harvesters must keep records to substantiate the species and quality codes reported. For tax reporting purposes, a ton equals 2,000 pounds. (Stumpage Value Areas 1, 2, 3, 4, 5, & 9) board foot weight scale factors ( tons/mbf ) Species Quality code 1 Douglas-fir 1 7.50 Western Hemlock 2 8.25 Western Redcedar 3 7.0 Red Alder 4 7.80 Chipwood 9.0 1 Includes Douglas-fir, Western Larch, Western White Pine and Sitka Spruce. Only for volume including less than 25% No. 2 sawmill or better log grades. 2 Includes Western Hemlock, Mountain Hemlock, Pacific Silver Fir, Noble Fir, Grand Fir, Subalpine Fir, Lodgepole Pine and other conifers not separately designated. Pacific Silver Fir, Noble Fir, Grand Fir, and Subalpine Fir are all commonly referred to as "White Fir." Only for volume including less than 25% No. 2 sawmill or better log grades. 3 Includes Alaska-cedar. 4 Maple, Black Cottonwood and other hardwoods. Only for volume including less than 40% No. 3 sawmill or better log grades. (Stumpage Value Areas 6 & 7 ) board foot weight scale factors (tons/mbf) Species Quality code 1 Ponderosa Pine 1 6.50 Douglas-fir 2 5.50 Lodgepole Pine 6.0 Western Hemlock 3 5.50 Englemann Spruce 4.50 Western Redcedar 4 4.50 Chipwood 9.0 Small Logs 6.50 1 Only for volume with 10 or more logs 16 feet long per thousand board feet Scribner scale. 2 Includes Western Larch. 3 Includes Western Hemlock, Mountain Hemlock, Pacific Silver Fir, Noble Fir, Grand Fir, Subalpine Fir, and other conifers not separately designated. Pacific Silver Fir, Noble Fir, Grand Fir, and Subalpine Fir are all commonly referred to as "White Fir." 4 Includes Alaska-cedar. (b) Cord measurement. For the purposes of converting cords into Scribner volume: (i) In stumpage value areas 1, 2, 3, 4, 5, and 9 logs with an average scaling diameter of 8 inches and larger must be converted to Scribner volume using 400 board feet per cord. Logs having an average scaling diameter of less than 8 inches must be converted to Scribner volume using 330 board feet per cord. (ii) In stumpage value areas 6 and 7 logs with an average scaling diameter of 8 inches and larger must be converted to Scribner volume using 470 board feet per cord. Logs having an average scaling diameter of less than 8 inches must be converted to Scribner volume using 390 board feet per cord. (iii) A cord of Western Redcedar shake or shingle blocks must be converted to Scribner volume using 600 board feet per cord. (iv) Firewood must be converted at a rate of 3 tons per cord. (c) Cants or lumber from portable mills. To convert from lumber tally to Scribner volume: (i) In stumpage value areas 1, 2, 3, 4, 5, and 9 multiply the lumber tally for the individual species by 75%, and round to the nearest one thousand board feet (MBF); or (ii) In stumpage value areas 6 and 7 multiply the lumber tally for the individual species by 88%, and round to the nearest one thousand board feet (MBF). (d) Log scale conversion. Timber harvested in stumpage value areas 1, 2, 3, 4, 5, and 9 and which has been scaled by methods and procedures published in the "Eastside Log Scaling Handbook" must have the volumes reported reduced by eighteen percent. Timber harvested in stumpage value areas 6 and 7 and which has been scaled by methods and procedures published in the "Official Log Scaling and Grading Rules" developed and authored by the Northwest log rules advisory group, must have the volumes reported increased by eighteen percent. (e) Timber pole and piling volume tables. Harvesters of poles must use the following tables to determine the Scribner board foot volume for each pole length and class: Total Scribner Board Foot Volume Stumpage Value Areas 1, 2, 3, 4, 5, and 9 Pole Class 1 Piling Class 2 Length H6 H5 H4 H3 H2 H1 1 2 3 4 5 6 7 9 10 A B 20 50 50 40 40 30 30 20 20 20 80 70 25 60 60 50 50 40 40 30 30 30 100 90 30 110 70 60 60 50 50 40 40 130 110 35 160 160 130 100 80 80 60 60 50 130 110 40 240 200 180 180 150 120 120 90 70 60 150 120 45 380 340 340 280 230 230 190 150 120 120 90 90 150 120 50 430 370 370 300 260 260 210 160 140 140 100 160 140 55 470 410 410 330 280 280 230 180 150 150 180 150 60 540 470 470 410 340 340 290 220 190 190 190 160 65 610 520 520 420 380 380 320 260 210 210 210 180 70 650 560 560 480 400 400 350 270 230 230 230 190 75 700 600 600 520 520 520 440 290 250 230 200 80 820 700 700 600 600 540 440 360 290 250 210 85 910 800 800 660 660 660 570 490 360 260 210 90 1080 930 930 820 820 690 590 490 400 260 220 95 1170 1000 1000 870 870 750 640 540 290 240 100 1190 1030 1030 900 900 760 660 550 310 250 105 1310 1160 1160 1000 1000 860 740 610 330 270 110 1370 1220 1220 1050 1050 910 780 650 380 300 115 1440 1280 1280 1100 1100 960 860 680 400 310 120 1660 1460 1460 1300 1300 1140 970 820 500 400 125 1840 1600 1600 1410 1410 1250 1080 930 130 1920 1680 1680 1490 1490 1310 1120 970 1 Pole class definitions taken from American National Standard specifications and dimensions for wood poles as approved August 7, 1976, under American National Standard Institute, Inc. codified ANSI 05.1-1972. 2 Piling class definitions as per American Society for Testing and Materials for "round timber piles." As the designation: D 25-58 (reapproved 1964). Total Scribner Board Foot Volume Stumpage Value Areas 6 and 7 Pole Class 1 Piling Class 2 Length H6 H5 H4 H3 H2 H1 1 2 3 4 5 6 7 9 10 A B 20 70 60 50 50 30 30 20 20 20 90 70 25 80 70 50 50 40 40 30 30 20 100 80 30 110 90 60 60 50 50 50 40 130 110 35 190 160 140 100 100 70 60 60 50 140 100 40 240 240 200 170 120 110 100 70 70 140 100 45 390 330 330 270 270 220 180 150 110 110 80 70 150 110 50 460 390 390 340 340 280 240 190 150 150 120 190 150 55 510 430 430 370 360 300 250 190 150 150 190 150 60 610 530 530 440 440 380 310 240 200 200 240 200 65 650 570 570 490 480 410 350 280 220 220 240 200 70 750 650 650 550 470 470 410 320 260 260 260 210 75 810 700 700 600 600 500 440 340 270 270 220 80 960 830 830 710 710 610 510 420 340 220 220 85 1020 870 870 760 760 640 550 450 360 300 240 90 1110 970 970 840 840 720 620 500 420 280 280 95 1160 1010 1010 870 870 740 640 510 360 280 100 1380 1210 1210 1060 1060 910 780 650 360 280 105 1430 1250 1250 1100 1100 940 820 690 400 300 110 1580 1390 1390 1220 1220 1070 920 770 460 340 115 1660 1470 1470 1280 1280 970 810 680 470 360 120 1880 1680 1680 1480 1480 1290 1130 950 560 450 125 1910 1690 1690 1490 1490 1140 970 810 130 2170 1920 1920 1710 1710 1510 1320 1140 1 Pole class definitions taken from American National Standard specifications and dimensions for wood poles as approved August 7, 1976, under American National Standard Institute, Inc. codified ANSI 05.1-1972. 2 Piling class definitions as per American Society for Testing and Materials for "round timber piles." As the designation: D 25-58 (reapproved 1964). [Statutory Authority: RCW 82.01.060 (2) and 84.33.096 . WSR 19-02-068, § 458-40-680, filed 12/28/18, effective 1/1/19. Statutory Authority: RCW 82.32.300 , 82.01.060 (2), 84.33.096 , and 84.33.091 . WSR 12-14-065, § 458-40-680, filed 6/29/12, effective 7/1/12. Statutory Authority: RCW 82.32.300 , 82.01.060 (2), and 84.33.096 . WSR 06-02-007, § 458-40-680, filed 12/22/05, effective 1/22/06; WSR 05-08-070, § 458-40-680, filed 3/31/05, effective 5/1/05; WSR 03-22-099, § 458-40-680, filed 11/5/03, effective 12/6/03. Statutory Authority: RCW 82.32.300 and 84.33.096 . WSR 00-24-068, § 458-40-680, filed 12/1/00, effective 1/1/01. Statutory Authority: RCW 82.32.330 , 84.33.096 and 84.33.120 . WSR 96-02-056, § 458-40-680, filed 12/29/95, effective 1/29/96. Statutory Authority: RCW 82.32.300 and 84.33.096 . WSR 95-14-084, § 458-40-680, filed 6/30/95, effective 7/31/95. Statutory Authority: Chapter 84.33 RCW. WSR 87-02-023 (Order 86-4), § 458-40-680, filed 12/31/86.]