Roll-Over Protective Structures, 41127-41161 [06-6327]

Download as PDF Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations wwhite on PROD1PC76 with RULES indicated in the preamble to the July 2005 final rule, the bioavailability of these pigments and/or their individual components when ingested is expected to be low. This submission did not provide any factual information to modify FDA’s conclusion that the subject pearlescent pigments present no toxic potential when ingested at levels estimated by the agency, based on their proposed use in coloring ingested drugs. Namely, this submission did not provide specifically identified reliable evidence that can lead to resolution of a factual issue in dispute (§ 12.24(b)(2)). A hearing will not be granted on the basis of mere allegations or denials or general descriptions of positions and contentions (§ 12.24(b)(2)). Therefore, FDA is denying this objection. V. Summary and Conclusions The agency is denying the objections to the final rule in the two submissions received on the following bases. The objection to the use of pearlescent pigments in food is outside the scope of the July 2005 final rule, which amended the color additive regulations to provide for the safe use of mica-based pearlescent pigments to color ingested drugs. The objections in the second submission that the subject pearlescent pigments would contain iron contaminants, that the iron contaminants would cause stability issues for active ingredients in drugs, and that the use of the pigments to color ingested drugs will limit availability of medications for the persons who must monitor their iron intake, are not supported by any factual information. The filing of the objections served to stay automatically the effectiveness of § 73.1128. Section 701(e)(2) of the act states: ‘‘Until final action upon such objections is taken by the Secretary * * *, the filing of such objections shall operate to stay the effectiveness of those provisions of the order to which the objections are made.’’ Section 701(e)(3) of the act further stipulates that ‘‘As soon as practicable * * *, the Secretary shall by order act upon such objections and make such order public.’’ The agency has completed its evaluation of the objections and concludes that a continuation of the stay of this regulation is not warranted. In the absence of any other objections and requests for a hearing, the agency, therefore, further concludes that this document constitutes final action on the objections received in response to the regulation as prescribed in section 701(e)(2) of the act. Therefore, the agency is acting to end the stay of the VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 regulation by establishing a new effective date of July 20, 2006 for this regulation listing mica-based pearlescent pigments prepared from synthetic iron oxide, mica, and titanium dioxide to color ingested drugs. As announced in the July 22, 2005, final rule, the previous effective date of the regulation was August 23, 2005. Therefore, under sections 701 and 721 of the act, notice is given that the objections filed in response to the July 2005 final rule do not form the basis for further stay of this final rule or require amendment of the regulations. Accordingly, the stay of § 73.1128 that FDA is announcing in this document is removed effective July 20, 2006. List of Subjects in 21 CFR Part 73 Color additives, Cosmetics, Drugs, Medical devices. I Therefore, under the Federal Food, Drug, and Cosmetic Act (21 U.S.C. 321, 341, 342, 343, 348, 351, 352, 355, 361, 362, 371, 379e) and under authority delegated to the Commissioner of Food and Drugs (section 1410.10 of the FDA Staff Manual Guide), notice is given that objections and a request for a hearing were filed in response to the July 22, 2005, final rule. Notice is also given that the agency is denying these objections. Accordingly, the amendments issued thereby are effective July 20, 2006. Dated: July 14, 2006. Jeffrey Shuren, Assistant Commissioner for Policy. [FR Doc. E6–11536 Filed 7–19–06; 8:45 am] BILLING CODE 4160–01–S DEPARTMENT OF LABOR Occupational Safety and Health Administration 29 CFR Parts 1926 and 1928 [Docket No. S–270–A] RIN 1218–AC15 Roll-Over Protective Structures Occupational Safety and Health Administration (OSHA), Labor. ACTION: Final rule; corrections and technical amendments. AGENCY: SUMMARY: On December 29, 2005, OSHA published a direct final rule in the Federal Register reinstating its original construction and agriculture standards that regulate the testing of roll-over protective structures (‘‘ROPS’’) used to protect employees who operate wheeltype tractors. OSHA received one PO 00000 Frm 00033 Fmt 4700 Sfmt 4700 41127 comment to the direct final rule; this comment recommended a number of clarifications to the original ROPS standards published in the direct final rule. In the present notice, the Agency is making corrections and technical amendments to the ROPS standards in response to this comment, as a result of editorial errors found in the ROPS standards published in the direct final rule, and to improve consistency among the figures generated for these standards. The Agency finds that these corrections and technical amendments do not change the substantive requirements of the ROPS standards. The corrections and technical amendments specified by this rulemaking become effective on July 20, 2006. DATES: FOR FURTHER INFORMATION CONTACT: Press inquiries: Kevin Ropp, OSHA Office of Communications, Room N– 3647, U.S. Department of Labor, 200 Constitution Avenue, NW., Washington, DC 20210; telephone: (202) 693–1999. General and technical information: Matthew Chibbaro, Acting Director, Office of Safety Systems, Directorate of Standards and Guidance, Occupational Safety and Health Administration, U.S. Department of Labor, Room N–3609, 200 Constitution Avenue, NW., Washington, DC 20210; telephone (202) 693–2255. On December 29, 2005, OSHA published a direct final rule in the Federal Register reinstating its original construction and agriculture standards that regulate the testing of roll-over protective structures (‘‘ROPS’’) used to protect employees who operate wheel-type tractors (see 70 FR 76979). The Agency received only one public comment (Ex. 3–1) on the direct final rule, which it determined was not a significant adverse comment. The commenter recommended several clarifications to the ROPS standards published in the direct final rule. The table below describes the clarifications recommended by the commenter who responded to the direct final rule, and OSHA’s response to these recommendations. This response provides the Agency’s rationale for accepting a recommendation or excluding it from further consideration. Accordingly, OSHA is making a number of corrections and technical amendments to the ROPS standards for construction (§ 1926.1002) and agriculture (§§ 1928.52 and 1928.53) based on the commenter’s recommendations. SUPPLEMENTARY INFORMATION: E:\FR\FM\20JYR1.SGM 20JYR1 41128 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations Recommendation OSHA’s response Figure W–15: • 05T needs to be 0.5T and 09T needs to be 0.9T • (50 DEG ± 5 DEG) (1270 plus/minus 127 mm) needs to be (50 inches plus/minus 5 inches) (1270 plus/minus 127 mm). • Path of travel should also state center of tractor Figure W–16: Under 1926.1002(i)(1)(i), Dimension D equals 2 inches (51 mm) inside of the frame upright to the vertical centerline of the seat. However, because Dimension G is 24 inches (610 mm), Dimension D should be 12 inches (305 mm). Figure W–17: Under 1926.1002(i)(1)(i), Dimension F equals not less than 0 inches (0 mm) and not more than 12 inches (305 mm) measured at the centerline of the seat backrest to the crossbar along the line of load application. Clarify whether the distance between the seat backrest and the frame cannot be more than 12 inches after impact. Figure W–18: Figure W–18 does not have any dimension specifications or an explanation of what it is and what it does. Figure W–19: • 08Lmax needs to be 0.8Lmax. • Load L, lb (kg) ¥ Define as L = static load, lb (kg) • Deflection D, in. (mm) ¥ Define as D = deflection under L, in. (mm) Figure W–20: • EU = OQD/12 ft-lb ¥ Add an explanation that dividing by 12 converts [to] in-lb. • Load L, lb (kg) ¥ Define L = static load, lb (kg) • Deflection D, in. (mm) ¥ Define D = deflection under L, in. (mm) OSHA added the decimal points as recommended. However, instead of revising ‘‘DEG’’ to ‘‘INCHES,’’ OSHA is replacing the entire caption with ‘‘45 in. min. (1143 mm)’’ to make this figure consistent with Figure C–10. Regarding the third recommendation, OSHA is adding a caption to the figure indicating the center of the tractor on the path of travel. For consistency, OSHA added this caption as well to Figure C–10. However, this caption applies only to the linear center of the tractor, which does not necessarily represent the tractor’s center of gravity. OSHA is not making a change in response to this comment. Dimension D represents the minimum deflection from the true horizontal permitted during side-load testing, which must be at least 2 inches (51 mm). Dimension G is the minimum design limit for the width of a ROPS (i.e., the ROPS must have a width of at least 24 inches). Therefore, the dimensions in Figure W–16 are correct. OSHA is not making a change in response to this comment. Dimension F represents two values: 12 inches is the pre-load design dimension and 0 is the maximum deflection permitted during rear-load testing (i.e., the distance between the two lines circumscribed by Dimension F can be no greater than 12 inches during testing). Therefore, the dimensions in Figure W–17 are correct and clear. OSHA is not making a change in response to this comment. The figure legend states that the figure represents a method for measuring instantaneous deflection, which is explained in § 1926.1002(g)(1)(ii) and (g)(2)(v). OSHA added the decimal point as recommended. However, OSHA is not revising ‘‘Load L, lb (kg)’’ or ‘‘Deflection D, in. (mm)’’ because these terms are defined in the regulatory text at § 1926.1002(j)(3). OSHA is not making a change in response to this comment. OSHA does not believe it is necessary to specifically explain that dividing by 12 converts ft-lbs to in-lbs. See OSHA’s response above for Figure W–19 regarding the comment on defining ‘‘Load L, lb (kg)’’ and ‘‘Deflection D, in. (mm).’’ Figure W–21: Add the weight of the pendulum (4,410 lbs (2,000 kg)) and the height of the pendulum (18–22 ft (5.5–6.7 m)) on the drawing. OSHA is not making a change in response to this comment because the information in the figure is provided in § 1926.1002(h)(1)(ii). Figure W–24: • Correct the first notation to read: H = 4.92 + 0.00190 W or H′ = 125 + 0.107 W′. • Correct the second notation to read: W = tractor weight as specified by 29 CFR 1926.1002(e)(1) and (e)(3), in lb. (W′, kg). OSHA is adding the decimal points in the notation ‘‘H = 4.92 + 0.00190W or H′ = 125 + 0.107W′,’’ as well as correcting the second notation to read ‘‘W = tractor weight as specified by 29 CFR 1926.1002(e)(1) and (e)(3) in pounds (W′ in kg).’’ Figures C–2, C–3, C–8, C–9, C–13, C–14, C–15, C–16: Define SRP as ‘‘Seat Reference Point.’’ OSHA is not making a change in response to this comment. Both 1928.52(d)(iv) and 1928.53(d)(iv) define this term, and OSHA believes these definitions are sufficient. wwhite on PROD1PC76 with RULES Figure C–4: This drawing does not have any dimension specifications or an explanation of what it is and what it does. See OSHA’s response above for Figure W–18. In this case, the method is explained in §§ 1928.52(d)(3)(i)(E) and 1928.53(d)(3)(i)(E). Figure C–5: • Load L, lb (kg) ¥ Define as L = static load, lb (kg) • Deflection D, in. (mm) ¥ Define as D = deflection under L, in. (mm) See OSHA’s response above for Figure W–19. In this case, the terms are defined in §§ 1928(d)(2)(ii) and 1928(d)(2)(ii). Figure C–6: Add the weight of the pendulum (4,410 lbs (2,000 kg)) and the height of the pendulum (18–22 ft (5.5–6.7 m)) on the drawing. See OSHA’s response above for Figure W–21. In this case, the information is provided in §§ 1928.52(d)(3)(i)(B) and 1928.53(d)(3)(i)(B). VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00034 Fmt 4700 Sfmt 4700 E:\FR\FM\20JYR1.SGM 20JYR1 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 41129 Recommendation OSHA’s response Figure C–7: • The second notation should read: W = tractor weight (see 29 CFR 1928.51(a) in lb. (W′, kg). • Clarify whether impact energy is in ft-lbs × 1000 instead of lb × 1000 OSHA is substituting Figure W–24 for this figure, but is correcting the notation in the new figure to read ‘‘W = tractor weight as specified by 29 CFR 1928.51(a) in pounds (W′ in kg).’’ This correction clarifies that impact energy is in ft-lbs. 29 CFR 1928.53(d)(2)(ii): Revise the notation to read W = Tractor weight (see 29 CFR 1928.51(a)) in lb (W′ in kg). OSHA is revising this notation as recommended. Other corrections and technical amendments. In addition to the revisions described in the table above, OSHA carefully reviewed the direct final rule and found that several additional corrections should be made to the original ROPS standards published in the direct final rule. In this regard, the Agency is making the following two corrections to § 1926.1002(h)(1)(v): Correcting the typographical error in the first sentence from ‘‘f’’ to ‘‘of’’; and, in the second sentence, correcting the reference to Figure W–23 to ‘‘Figure W–18.’’ A number of figures appear in the original ROPS standards. These figures are: W–14 through W–24 of § 1926.1002; W–25 through W–28 of § 1926.1003; C– 1 through C–11 of § 1928.52; and C–12 through C–16 of § 1928.53. After publishing the direct final rule for ROPS in the Federal Register (70 FR 76979), the Agency reproduced the figures in these ROPS standards using state-of-theart computer-design technology to obtain images that are clearer and more comprehensible than the images used in the direct final rule. Therefore, OSHA is replacing the figures published in the direct final rule with these newly generated figures. In the process of generating the new figures, the Agency made stylistic, editorial, and technical corrections to them. The following table describes the technical corrections made to the figures. Figures Correction W–15 ............................................... Added the same legend as the legend to Figure C–10; added the caption ‘‘CENTER OF TRACTOR’’ as in Figure C–10. Replaced the legend with the legend to Figure W–18. Substituted Figure W–19 for this figure. Added the phrase ‘‘PIN MARKING POSITION OF’’ to the caption ‘‘CENTER OF GRAVITY’’ as in Figure W–21. Substituted Figure W–24 for this figure. Revised the caption addressing the beam under the tractor to read, ‘‘BEAM CLAMPED IN FRONT OF BOTH REAR WHEELS AFTER ANCHORING, 6 IN. (15 CM) SQUARE.’’ Added the captions ‘‘PATH OF TRAVEL’’ and ‘‘RAMP’’ as in Figure W–15; added the phrase ‘‘TEST TRACTOR’’ to the caption ‘‘REAR WHEEL TREAD’’ as in Figure W–15. C–4 .................................................. C–5 .................................................. C–6 .................................................. C–7 .................................................. C–8, C–15, and W–22 .................... wwhite on PROD1PC76 with RULES C–10 ................................................ Exemption from notice and comment procedures. OSHA has determined that the corrections and technical amendments made by this rulemaking are not subject to the procedures for public notice-and-comment rulemaking specified under Section 4 of the Administrative Procedure Act (5 U.S.C. 553), or Section 6(b) of the Occupational Safety and Health Act of 1970 (29 U.S.C. 655(b)), because these corrections and technical amendments do not affect the substantive requirements or coverage of the ROPS standards for the construction and agriculture industries. This rulemaking does not modify or revoke existing rights and obligations, and new rights and obligations have not been established by this rulemaking. Under this rulemaking, the Agency is merely correcting or clarifying the existing regulatory requirements of the ROPS standards. Therefore, OSHA finds that public notice-and-comment procedures are unnecessary within the meaning of 5 U.S.C. 553(b)(3)(B) and § 1911.5. VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 Signed at Washington, DC on July 12, 2006. Edwin G. Foulke, Jr., Assistant Secretary of Labor. List of Subjects 29 CFR Part 1926 Construction industry, Motor vehicle safety, Occupational safety and health. Amended Standards Agriculture, Motor vehicle safety, Occupational safety and health. Based on the explanations provided by the preamble to this document, OSHA is amending 29 CFR parts 1926 and 1928 as follows: Authority and Signature PART 1926—[AMENDED] This document was prepared under the direction of Edwin G. Foulke, Jr., Assistant Secretary of Labor for Occupational Safety and Health, U.S. Department of Labor, 200 Constitution Avenue, NW., Washington, DC 20210. The Agency is issuing this notice under the following authorities: Sections 4, 6, and 8 of the Occupational Safety and Health Act of 1970 (29 U.S.C. 653, 655, 657); Section 3704 of the Contract Work Hours and Safety Standards Act (40 U.S.C. 3701 et seq.); Secretary of Labor’s Order 5–2002 (67 FR 65008); and 29 CFR part 1911. Subpart W—[Amended] I 29 CFR Part 1928 PO 00000 Frm 00035 Fmt 4700 Sfmt 4700 1. The authority citation for subpart W of part 1926 continues to read as follows: I Authority: Section 3704 of the Contract Work Hours and Safety Standards Act (40 U.S.C. 3701); Sections 4, 6, and 8 of the Occupational Safety and Health Act of 1970 (29 U.S.C. 653, 655, 657); and Secretary of Labor’s Order No. 12–71 (36 FR 8754), 8–76 (41 FR 25059), 9–83 (48 FR 35736), 1–90 (55 FR 9033), 6–96 (62 FR 111), 3–2000 (65 FR 50017), or 5–2002 (67 FR 65008), as applicable. 2. Revise paragraph (h)(1)(v) of § 1926.1002 to read as follows: I E:\FR\FM\20JYR1.SGM 20JYR1 41130 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations § 1926.1002 Protective frames (roll-over protective structures, known as ROPS) for wheel-type agricultural and industrial tractors used in construction. simple friction device is illustrated in Figure W–18. * * * * * PART 1928—[AMENDED] * I 3. In Appendix A to subpart W, remove existing Figures W–14 through W–28 and add in their place new Figures W–14 through W–28. [insert figures W–14 through W–28] * * * * * I wwhite on PROD1PC76 with RULES * * * * (h) * * * (1) * * * (v) Means shall be provided for indicating the maximum instantaneous deflection along the line of impact. A VerDate Aug<31>2005 18:03 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00036 Fmt 4700 Sfmt 4700 Subpart C—[Amended] 4. The authority citation to part 1928 continues to read as follows: BILLING CODE 4510–26–P E:\FR\FM\20JYR1.SGM 20JYR1 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00037 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41131 ER20JY06.009</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00038 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.010</GPH> wwhite on PROD1PC76 with RULES 41132 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00039 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41133 ER20JY06.011</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00040 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.012</GPH> wwhite on PROD1PC76 with RULES 41134 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00041 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41135 ER20JY06.013</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00042 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.014</GPH> wwhite on PROD1PC76 with RULES 41136 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00043 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41137 ER20JY06.015</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00044 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.016</GPH> wwhite on PROD1PC76 with RULES 41138 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00045 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41139 ER20JY06.017</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00046 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.018</GPH> wwhite on PROD1PC76 with RULES 41140 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00047 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41141 ER20JY06.019</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00048 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.020</GPH> wwhite on PROD1PC76 with RULES 41142 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00049 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41143 ER20JY06.021</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00050 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.022</GPH> wwhite on PROD1PC76 with RULES 41144 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations Authority: Sections 4, 6, and 8 of the Occupational Safety and Health Act of 1970 (29 U.S.C. 653, 655, 657); and Secretary of Labor’s Order No. 12–71 (36 FR 8754), 8–76 (41 FR 25059), 9–83 (48 FR 35736), 1–90 (55 FR 9033), 6–96 (62 FR 111), 3–2000 (65 FR 50017) or 5–2002 (67 FR 65008) as applicable; and 29 CFR part 1911. VerDate Aug<31>2005 18:03 Jul 19, 2006 Jkt 208001 Section 1928.21 also issued under Section 29, Hazardous Materials Transportation Uniform Safety Act of 1990 (Pub. L. 101–615, 104 Stat. 3244 (49 U.S.C. 1801–1819 and 5 U.S.C. 553)). 5. Revise paragraph (d)(2)(ii) of § 1928.53 to read as follows: I PO 00000 Frm 00051 Fmt 4700 Sfmt 4700 § 1928.53 Protective enclosures for wheeltype agricultural tractors—test procedures and performance requirements. * * * * * (d) * * * (2) * * * (ii) The following definitions shall apply: E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.023</GPH> wwhite on PROD1PC76 with RULES BILLING CODE 4510–26–C 41145 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations wwhite on PROD1PC76 with RULES W = Tractor weight (see 29 CFR 1928.51(a)) in lb (W ′ in kg); Eis = Energy input to be absorbed during side loading in ft-lb (E ′is in J [joules]); Eis = 723 + 0.4 W (E ′is = 100 + 0.12 W ′); Eir = Energy input to be absorbed during rear loading in ft-lb (E ′ir in J); Eir = 0.47 W (E ′ir = 0.14 W ′); L = Static load, lbf [pounds force], (N) [newtons]; VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 D = Deflection under L, in. (mm); L–D = Static load-deflection diagram; Lmax = Maximum observed static load; Load Limit = Point on a continuous L–D curve where the observed static load is 0.8 Lmax on the down slope of the curve (see Figure C–5); Eu = Strain energy absorbed by the protective enclosure in ft-lbs (J); area under the L– D curve; PO 00000 Frm 00052 Fmt 4700 Sfmt 4725 FER = Factor of energy ratio; FERis = Eu/Eis; and FERir = Eu/Eir. * * * * * 6. In Appendix B to subpart C, remove existing Figures C–1 through C–16 and add in their place new Figures C–1 through C–16. I BILLING CODE 4510–26–P E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.024</GPH> 41146 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00053 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41147 ER20JY06.025</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00054 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.026</GPH> wwhite on PROD1PC76 with RULES 41148 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00055 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41149 ER20JY06.027</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00056 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.028</GPH> wwhite on PROD1PC76 with RULES 41150 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00057 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41151 ER20JY06.029</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00058 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.030</GPH> wwhite on PROD1PC76 with RULES 41152 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00059 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41153 ER20JY06.031</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00060 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.032</GPH> wwhite on PROD1PC76 with RULES 41154 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00061 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41155 ER20JY06.033</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00062 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.034</GPH> wwhite on PROD1PC76 with RULES 41156 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00063 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41157 ER20JY06.035</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00064 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.036</GPH> wwhite on PROD1PC76 with RULES 41158 VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00065 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 41159 ER20JY06.037</GPH> wwhite on PROD1PC76 with RULES Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations VerDate Aug<31>2005 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00066 Fmt 4700 Sfmt 4725 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.038</GPH> wwhite on PROD1PC76 with RULES 41160 Federal Register / Vol. 71, No. 139 / Thursday, July 20, 2006 / Rules and Regulations * * * * 41161 * BILLING CODE 4510–26–C VerDate Aug<31>2005 16:42 Jul 19, 2006 Jkt 208001 PO 00000 Frm 00067 Fmt 4700 Sfmt 4700 E:\FR\FM\20JYR1.SGM 20JYR1 ER20JY06.039</GPH> wwhite on PROD1PC76 with RULES [FR Doc. 06–6327 Filed 7–19–06; 8:45 am]

Agencies

[Federal Register Volume 71, Number 139 (Thursday, July 20, 2006)]
[Rules and Regulations]
[Pages 41127-41161]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 06-6327]


=======================================================================
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DEPARTMENT OF LABOR

Occupational Safety and Health Administration

29 CFR Parts 1926 and 1928

[Docket No. S-270-A]
RIN 1218-AC15


Roll-Over Protective Structures

AGENCY: Occupational Safety and Health Administration (OSHA), Labor.

ACTION: Final rule; corrections and technical amendments.

-----------------------------------------------------------------------

SUMMARY: On December 29, 2005, OSHA published a direct final rule in 
the Federal Register reinstating its original construction and 
agriculture standards that regulate the testing of roll-over protective 
structures (``ROPS'') used to protect employees who operate wheel-type 
tractors. OSHA received one comment to the direct final rule; this 
comment recommended a number of clarifications to the original ROPS 
standards published in the direct final rule. In the present notice, 
the Agency is making corrections and technical amendments to the ROPS 
standards in response to this comment, as a result of editorial errors 
found in the ROPS standards published in the direct final rule, and to 
improve consistency among the figures generated for these standards. 
The Agency finds that these corrections and technical amendments do not 
change the substantive requirements of the ROPS standards.

DATES: The corrections and technical amendments specified by this 
rulemaking become effective on July 20, 2006.

FOR FURTHER INFORMATION CONTACT:
    Press inquiries: Kevin Ropp, OSHA Office of Communications, Room N-
3647, U.S. Department of Labor, 200 Constitution Avenue, NW., 
Washington, DC 20210; telephone: (202) 693-1999.
    General and technical information: Matthew Chibbaro, Acting 
Director, Office of Safety Systems, Directorate of Standards and 
Guidance, Occupational Safety and Health Administration, U.S. 
Department of Labor, Room N-3609, 200 Constitution Avenue, NW., 
Washington, DC 20210; telephone (202) 693-2255.

SUPPLEMENTARY INFORMATION: On December 29, 2005, OSHA published a 
direct final rule in the Federal Register reinstating its original 
construction and agriculture standards that regulate the testing of 
roll-over protective structures (``ROPS'') used to protect employees 
who operate wheel-type tractors (see 70 FR 76979). The Agency received 
only one public comment (Ex. 3-1) on the direct final rule, which it 
determined was not a significant adverse comment. The commenter 
recommended several clarifications to the ROPS standards published in 
the direct final rule.
    The table below describes the clarifications recommended by the 
commenter who responded to the direct final rule, and OSHA's response 
to these recommendations. This response provides the Agency's rationale 
for accepting a recommendation or excluding it from further 
consideration. Accordingly, OSHA is making a number of corrections and 
technical amendments to the ROPS standards for construction (Sec.  
1926.1002) and agriculture (Sec. Sec.  1928.52 and 1928.53) based on 
the commenter's recommendations.

[[Page 41128]]



------------------------------------------------------------------------
             Recommendation                      OSHA's response
------------------------------------------------------------------------
Figure W-15:
     05T needs to be 0.5T and    OSHA added the decimal points
     09T needs to be 0.9T                 as recommended. However,
     (50 DEG  5       instead of revising ``DEG'' to
     DEG) (1270 plus/minus 127 mm)        ``INCHES,'' OSHA is replacing
     needs to be (50 inches plus/minus    the entire caption with ``45
     5 inches) (1270 plus/minus 127 mm).  in. min. (1143 mm)'' to make
     Path of travel should also   this figure consistent with
     state center of tractor.             Figure C-10. Regarding the
                                          third recommendation, OSHA is
                                          adding a caption to the figure
                                          indicating the center of the
                                          tractor on the path of travel.
                                          For consistency, OSHA added
                                          this caption as well to Figure
                                          C-10. However, this caption
                                          applies only to the linear
                                          center of the tractor, which
                                          does not necessarily represent
                                          the tractor's center of
                                          gravity.
------------------------------------------------------------------------
Figure W-16:
    Under 1926.1002(i)(1)(i), Dimension  OSHA is not making a change in
     D equals 2 inches (51 mm) inside     response to this comment.
     of the frame upright to the          Dimension D represents the
     vertical centerline of the seat.     minimum deflection from the
     However, because Dimension G is 24   true horizontal permitted
     inches (610 mm), Dimension D         during side-load testing,
     should be 12 inches (305 mm).        which must be at least 2
                                          inches (51 mm). Dimension G is
                                          the minimum design limit for
                                          the width of a ROPS (i.e., the
                                          ROPS must have a width of at
                                          least 24 inches). Therefore,
                                          the dimensions in Figure W-16
                                          are correct.
------------------------------------------------------------------------
Figure W-17:
    Under 1926.1002(i)(1)(i), Dimension  OSHA is not making a change in
     F equals not less than 0 inches (0   response to this comment.
     mm) and not more than 12 inches      Dimension F represents two
     (305 mm) measured at the             values: 12 inches is the pre-
     centerline of the seat backrest to   load design dimension and 0 is
     the crossbar along the line of       the maximum deflection
     load application. Clarify whether    permitted during rear-load
     the distance between the seat        testing (i.e., the distance
     backrest and the frame cannot be     between the two lines
     more than 12 inches after impact.    circumscribed by Dimension F
                                          can be no greater than 12
                                          inches during testing).
                                          Therefore, the dimensions in
                                          Figure W-17 are correct and
                                          clear.
------------------------------------------------------------------------
Figure W-18:
    Figure W-18 does not have any        OSHA is not making a change in
     dimension specifications or an       response to this comment. The
     explanation of what it is and what   figure legend states that the
     it does.                             figure represents a method for
                                          measuring instantaneous
                                          deflection, which is explained
                                          in Sec.   1926.1002(g)(1)(ii)
                                          and (g)(2)(v).
------------------------------------------------------------------------
Figure W-19:
     08Lmax needs to be          OSHA added the decimal point as
     0.8Lmax.                             recommended. However, OSHA is
     Load L, lb (kg) - Define     not revising ``Load L, lb
     as L = static load, lb (kg).         (kg)'' or ``Deflection D, in.
     Deflection D, in. (mm) -     (mm)'' because these terms are
     Define as D = deflection under L,    defined in the regulatory text
     in. (mm).                            at Sec.   1926.1002(j)(3).
------------------------------------------------------------------------
Figure W-20:
     EU = OQD/12 ft-lb - Add an  OSHA is not making a change in
     explanation that dividing by 12      response to this comment. OSHA
     converts [to] in-lb.                 does not believe it is
     Load L, lb (kg) - Define L   necessary to specifically
     = static load, lb (kg).              explain that dividing by 12
     Deflection D, in. (mm) -     converts ft-lbs to in-lbs. See
     Define D = deflection under L, in.   OSHA's response above for
     (mm).                                Figure W-19 regarding the
                                          comment on defining ``Load L,
                                          lb (kg)'' and ``Deflection D,
                                          in. (mm).''
------------------------------------------------------------------------
Figure W-21:
    Add the weight of the pendulum       OSHA is not making a change in
     (4,410 lbs (2,000 kg)) and the       response to this comment
     height of the pendulum (18-22 ft     because the information in the
     (5.5-6.7 m)) on the drawing.         figure is provided in Sec.
                                          1926.1002(h)(1)(ii).
------------------------------------------------------------------------
Figure W-24:
     Correct the first notation  OSHA is adding the decimal
     to read: H = 4.92 + 0.00190 W or     points in the notation ``H =
     H' = 125 + 0.107 W'.                 4.92 + 0.00190W or H' = 125 +
     Correct the second           0.107W','' as well as
     notation to read: W = tractor        correcting the second notation
     weight as specified by 29 CFR        to read ``W = tractor weight
     1926.1002(e)(1) and (e)(3), in lb.   as specified by 29 CFR
     (W', kg).                            1926.1002(e)(1) and (e)(3) in
                                          pounds (W' in kg).''
------------------------------------------------------------------------
Figures C-2, C-3, C-8, C-9, C-13, C-14,
 C-15, C-16:
    Define SRP as ``Seat Reference       OSHA is not making a change in
     Point.''                             response to this comment. Both
                                          1928.52(d)(iv) and
                                          1928.53(d)(iv) define this
                                          term, and OSHA believes these
                                          definitions are sufficient.
------------------------------------------------------------------------
Figure C-4:
    This drawing does not have any       See OSHA's response above for
     dimension specifications or an       Figure W-18. In this case, the
     explanation of what it is and what   method is explained in Sec.
     it does.                             Sec.   1928.52(d)(3)(i)(E) and
                                          1928.53(d)(3)(i)(E).
------------------------------------------------------------------------
Figure C-5:
     Load L, lb (kg) - Define    See OSHA's response above for
     as L = static load, lb (kg)          Figure W-19. In this case, the
     Deflection D, in. (mm) -     terms are defined in Sec.
     Define as D = deflection under L,    Sec.   1928(d)(2)(ii) and
     in. (mm).                            1928(d)(2)(ii).
------------------------------------------------------------------------
Figure C-6:
    Add the weight of the pendulum       See OSHA's response above for
     (4,410 lbs (2,000 kg)) and the       Figure W-21. In this case, the
     height of the pendulum (18-22 ft     information is provided in
     (5.5-6.7 m)) on the drawing.         Sec.  Sec.
                                          1928.52(d)(3)(i)(B) and
                                          1928.53(d)(3)(i)(B).
------------------------------------------------------------------------

[[Page 41129]]

 
Figure C-7:
     The second notation should  OSHA is substituting Figure W-
     read: W = tractor weight (see 29     24 for this figure, but is
     CFR 1928.51(a) in lb. (W', kg).      correcting the notation in the
     Clarify whether impact       new figure to read ``W =
     energy is in ft-lbs x 1000 instead   tractor weight as specified by
     of lb x 1000.                        29 CFR 1928.51(a) in pounds
                                          (W' in kg).'' This correction
                                          clarifies that impact energy
                                          is in ft-lbs.
------------------------------------------------------------------------
29 CFR 1928.53(d)(2)(ii):
    Revise the notation to read W =      OSHA is revising this notation
     Tractor weight (see 29 CFR           as recommended.
     1928.51(a)) in lb (W' in kg).
------------------------------------------------------------------------

    Other corrections and technical amendments. In addition to the 
revisions described in the table above, OSHA carefully reviewed the 
direct final rule and found that several additional corrections should 
be made to the original ROPS standards published in the direct final 
rule. In this regard, the Agency is making the following two 
corrections to Sec.  1926.1002(h)(1)(v): Correcting the typographical 
error in the first sentence from ``f'' to ``of''; and, in the second 
sentence, correcting the reference to Figure W-23 to ``Figure W-18.''
    A number of figures appear in the original ROPS standards. These 
figures are: W-14 through W-24 of Sec.  1926.1002; W-25 through W-28 of 
Sec.  1926.1003; C-1 through C-11 of Sec.  1928.52; and C-12 through C-
16 of Sec.  1928.53. After publishing the direct final rule for ROPS in 
the Federal Register (70 FR 76979), the Agency reproduced the figures 
in these ROPS standards using state-of-the-art computer-design 
technology to obtain images that are clearer and more comprehensible 
than the images used in the direct final rule. Therefore, OSHA is 
replacing the figures published in the direct final rule with these 
newly generated figures.
    In the process of generating the new figures, the Agency made 
stylistic, editorial, and technical corrections to them. The following 
table describes the technical corrections made to the figures.

------------------------------------------------------------------------
              Figures                            Correction
------------------------------------------------------------------------
W-15..............................  Added the same legend as the legend
                                     to Figure C-10; added the caption
                                     ``CENTER OF TRACTOR'' as in Figure
                                     C-10.
C-4...............................  Replaced the legend with the legend
                                     to Figure W-18.
C-5...............................  Substituted Figure W-19 for this
                                     figure.
C-6...............................  Added the phrase ``PIN MARKING
                                     POSITION OF'' to the caption
                                     ``CENTER OF GRAVITY'' as in Figure
                                     W-21.
C-7...............................  Substituted Figure W-24 for this
                                     figure.
C-8, C-15, and W-22...............  Revised the caption addressing the
                                     beam under the tractor to read,
                                     ``BEAM CLAMPED IN FRONT OF BOTH
                                     REAR WHEELS AFTER ANCHORING, 6 IN.
                                     (15 CM) SQUARE.''
C-10..............................  Added the captions ``PATH OF
                                     TRAVEL'' and ``RAMP'' as in Figure
                                     W-15; added the phrase ``TEST
                                     TRACTOR'' to the caption ``REAR
                                     WHEEL TREAD'' as in Figure W-15.
------------------------------------------------------------------------

    Exemption from notice and comment procedures. OSHA has determined 
that the corrections and technical amendments made by this rulemaking 
are not subject to the procedures for public notice-and-comment 
rulemaking specified under Section 4 of the Administrative Procedure 
Act (5 U.S.C. 553), or Section 6(b) of the Occupational Safety and 
Health Act of 1970 (29 U.S.C. 655(b)), because these corrections and 
technical amendments do not affect the substantive requirements or 
coverage of the ROPS standards for the construction and agriculture 
industries. This rulemaking does not modify or revoke existing rights 
and obligations, and new rights and obligations have not been 
established by this rulemaking. Under this rulemaking, the Agency is 
merely correcting or clarifying the existing regulatory requirements of 
the ROPS standards. Therefore, OSHA finds that public notice-and-
comment procedures are unnecessary within the meaning of 5 U.S.C. 
553(b)(3)(B) and Sec.  1911.5.

List of Subjects

29 CFR Part 1926

    Construction industry, Motor vehicle safety, Occupational safety 
and health.

29 CFR Part 1928

    Agriculture, Motor vehicle safety, Occupational safety and health.

Authority and Signature

    This document was prepared under the direction of Edwin G. Foulke, 
Jr., Assistant Secretary of Labor for Occupational Safety and Health, 
U.S. Department of Labor, 200 Constitution Avenue, NW., Washington, DC 
20210. The Agency is issuing this notice under the following 
authorities: Sections 4, 6, and 8 of the Occupational Safety and Health 
Act of 1970 (29 U.S.C. 653, 655, 657); Section 3704 of the Contract 
Work Hours and Safety Standards Act (40 U.S.C. 3701 et seq.); Secretary 
of Labor's Order 5-2002 (67 FR 65008); and 29 CFR part 1911.

    Signed at Washington, DC on July 12, 2006.
Edwin G. Foulke, Jr.,
Assistant Secretary of Labor.

 Amended Standards

0
Based on the explanations provided by the preamble to this document, 
OSHA is amending 29 CFR parts 1926 and 1928 as follows:

PART 1926--[AMENDED]

Subpart W--[Amended]

0
1. The authority citation for subpart W of part 1926 continues to read 
as follows:

    Authority: Section 3704 of the Contract Work Hours and Safety 
Standards Act (40 U.S.C. 3701); Sections 4, 6, and 8 of the 
Occupational Safety and Health Act of 1970 (29 U.S.C. 653, 655, 
657); and Secretary of Labor's Order No. 12-71 (36 FR 8754), 8-76 
(41 FR 25059), 9-83 (48 FR 35736), 1-90 (55 FR 9033), 6-96 (62 FR 
111), 3-2000 (65 FR 50017), or 5-2002 (67 FR 65008), as applicable.

0
2. Revise paragraph (h)(1)(v) of Sec.  1926.1002 to read as follows:

[[Page 41130]]

Sec.  1926.1002  Protective frames (roll-over protective structures, 
known as ROPS) for wheel-type agricultural and industrial tractors used 
in construction.

* * * * *
    (h) * * *
    (1) * * *
    (v) Means shall be provided for indicating the maximum 
instantaneous deflection along the line of impact. A simple friction 
device is illustrated in Figure W-18.
* * * * *

0
3. In Appendix A to subpart W, remove existing Figures W-14 through W-
28 and add in their place new Figures W-14 through W-28. [insert 
figures W-14 through W-28]
* * * * *

PART 1928--[AMENDED]

Subpart C--[Amended]

0
4. The authority citation to part 1928 continues to read as follows:
BILLING CODE 4510-26-P

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[GRAPHIC] [TIFF OMITTED] TR20JY06.023

BILLING CODE 4510-26-C

    Authority: Sections 4, 6, and 8 of the Occupational Safety and 
Health Act of 1970 (29 U.S.C. 653, 655, 657); and Secretary of 
Labor's Order No. 12-71 (36 FR 8754), 8-76 (41 FR 25059), 9-83 (48 
FR 35736), 1-90 (55 FR 9033), 6-96 (62 FR 111), 3-2000 (65 FR 50017) 
or 5-2002 (67 FR 65008) as applicable; and 29 CFR part 1911.
    Section 1928.21 also issued under Section 29, Hazardous 
Materials Transportation Uniform Safety Act of 1990 (Pub. L. 101-
615, 104 Stat. 3244 (49 U.S.C. 1801-1819 and 5 U.S.C. 553)).


0
5. Revise paragraph (d)(2)(ii) of Sec.  1928.53 to read as follows:


Sec.  1928.53  Protective enclosures for wheel-type agricultural 
tractors--test procedures and performance requirements.

* * * * *
    (d) * * *
    (2) * * *
    (ii) The following definitions shall apply:


[[Page 41146]]


W = Tractor weight (see 29 CFR 1928.51(a)) in lb (W ' in kg);
Eis = Energy input to be absorbed during side loading in ft-lb (E 
'is in J [joules]);
Eis = 723 + 0.4 W (E 'is = 100 + 0.12 W ');
Eir = Energy input to be absorbed during rear loading in ft-lb (E 
'ir in J);
Eir = 0.47 W (E 'ir = 0.14 W ');
L = Static load, lbf [pounds force], (N) [newtons];
D = Deflection under L, in. (mm);
L-D = Static load-deflection diagram;
Lmax = Maximum observed static load;
Load Limit = Point on a continuous L-D curve where the observed 
static load is 0.8 Lmax on the down slope of the curve (see Figure 
C-5);
Eu = Strain energy absorbed by the protective enclosure in ft-lbs 
(J); area under the L-D curve;
FER = Factor of energy ratio;
FERis = Eu/Eis; and
FERir = Eu/Eir.
* * * * *

0
6. In Appendix B to subpart C, remove existing Figures C-1 through C-16 
and add in their place new Figures C-1 through C-16.
BILLING CODE 4510-26-P
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* * * * *
[FR Doc. 06-6327 Filed 7-19-06; 8:45 am]
BILLING CODE 4510-26-C
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