1328 Part 581—Bumper Standard

1328 Part 581—Bumper Standard

Pt. 581 49 CFR Ch. V (10–1–08 Edition) llllllllllllllllllllllll § 581.2 Purpose. (Transferor’s Signature) llllllllllllllllllllllll The purpose of this standard is to re- (Printed Name) duce physical damage to the front and Transferor’s Address (Street) rear ends of a passenger motor vehicle llllllllllll from low speed collisions. (City) llllll (State) ll (ZIP Code) lllll. § 581.3 Application. Date of Statement llllllll This standard applies to passenger motor vehicles other than multipur- PART C. CERTIFICATION pose passenger vehicles and low-speed (To Be Completed When parts A and B vehicles as defined in 49 CFR part Have Been Used) 571.3(b). I, , (person exercising above llllllll [63 FR 33217, June 17, 1998] powers of attorney, Print), hereby certify that the mileage I have disclosed on the title § 581.4 Definitions. document is consistent with that provided to me in the above power of attorney. Further, All terms defined in 49 U.S.C. 32101 upon examination of the title and any reas- are used as defined therein. signment documents for the vehicle de- Bumper face bar means any compo- scribed above, the mileage diclosure I have nent of the bumper system that con- made on the title pursuant to the power of attorney is greater than that previously tacts the impact ridge of the pendulum stated on the title and reassignment docu- test device. ments. This certification is not intended to [42 FR 24059, May 12, 1977, as amended at 64 create, nor does it create any new or addi- FR 2862, Jan. 19, 1999] tional liability under Federal or State law. llllllllllllllllllllllll § 581.5 Requirements. (Signature) llllllllllllllllllllllll (a) Each vehicle shall meet the dam- (Printed Name) age criteria of §§ 581.5(c)(1) through llllllllllllllllllllllll 581.5(c)(9) when impacted by a pen- Address (Street) dulum-type test device in accordance (City) llllllll (State) ll (ZIP Code) with the procedures of § 581.7(b), under lllll the conditions of § 581.6, at an impact Date llllllll speed of 1.5 m.p.h., and when impacted [54 FR 9816, Mar. 8, 1989, as amended at 54 FR by a pendulum-type test device in ac- 35889, Aug. 30, 1989] cordance with the procedures of § 581.7(a) at 2.5 m.p.h., followed by an PART 581—BUMPER STANDARD impact into a fixed collision barrier that is perpendicular to the line of travel of the vehicle, while traveling Sec. 581.1 Scope. longitudinally forward, then longitu- 581.2 Purpose. dinally rearward, under the conditions 581.3 Application. of § 581.6, at 2.5 m.p.h. 581.4 Definitions. (b) [Reserved] 581.5 Requirements. (c) Protective criteria. (1) Each lamp or 581.6 Conditions. reflective device except license plate 581.7 Test procedures. lamps shall be free of cracks and shall 581.8 Exemptions. comply with applicable visibility re- AUTHORITY: 49 U.S.C. 32502; 322, 30111, 30115, quirements of S5.3.1.1 of Standard No. 30117 and 30166; delegation of authority at 49 108 (§ 571.108 of this chapter). The aim CFR 1.50. of each headlamp installed on the vehi- SOURCE: 42 FR 24059, May 12, 1977, unless cle shall be adjustable to within the otherwise noted. beam aim inspection limits specified in Table 1 of SAE Recommended Practice § 581.1 Scope. J599 AUG97, measured with the aiming This standard establishes require- method appropriate for that headlamp. ments for the impact resistance of ve- (2) The vehicle’s hood, trunk, and hicles in low speed front and rear colli- doors shall operate in the normal man- sions. ner. 1328 VerDate Aug<31>2005 15:50 Dec 10, 2008 Jkt 214214 PO 00000 Frm 01338 Fmt 8010 Sfmt 8010 Y:\SGML\214214.XXX 214214 yshivers on PROD1PC62 with CFR Nat’l Highway Traffic Safety Admin., DOT § 581.7 (3) The vehicle’s fuel and cooling sys- (5) Trailer hitches, license plate tems shall have no leaks or constricted brackets, and headlamp washers are re- fluid passages and all sealing devices moved from the vehicle. Running and caps shall operate in the normal lights, fog lamps, and equipment manner. mounted on the bumper face bar are re- (4) The vehicle’s exhaust system shall moved from the vehicle if they are op- have no leaks or constrictions. tional equipment. (5) The vehicle’s propulsion, suspen- (b) Pendulum test conditions. The fol- sion, steering, and braking systems lowing conditions apply to the pen- shall remain in adjustment and shall dulum test procedures of § 581.7 (a) and operate in the normal manner. (b). (6) A pressure vessel used to absorb (1) The test device consists of a block impact energy in an exterior protec- with one side contoured as specified in tion system by the accumulation of gas Figure 1 and Figure 2 with the impact pressure or hydraulic pressure shall ridge made of A1S1 4130 steel hardened not suffer loss of gas or fluid accom- to 34 Rockwell ‘‘C.’’ The impact ridge panied by separation of fragments from and the surfaces in Planes A and B of the vessel. the test device are finished with a sur- (7) The vehicle shall not touch the face roughness of 32 as specified by test device, except on the impact ridge SAE Recommended Practice J449A, shown in Figures 1 and 2, with a force June 1963. From the point of release of that exceeds 2000 pounds on the com- the device until the onset of rebound, bined surfaces of Planes A and B of the the pendulum suspension system holds test device. Plane A vertical, with the arc de- scribed by any point on the impact line (8) The exterior surfaces shall have lying in a vertical plane (for § 581.7(a), no separations of surface materials, longitudinal; for § 581.7(b), at an angle paint, polymeric coatings, or other of 30° to a vertical longitudinal plane) covering materials from the surface to and having a constant radius of not which they are bonded, and no perma- less than 11 feet. nent deviations from their original (2) With Plane A vertical, the impact contours 30 minutes after completion line shown in Figures 1 and 2 is hori- of each pendulum and barrier impact, zontal at the same height as the test except where such damage occurs to device’s center of percussion. the bumper face bar and the compo- (3) The effective impacting mass of nents and associated fasteners that di- the test device is equal to the mass of rectly attach the bumper face bar to the tested vehicle. the chassis frame. (4) When impacted by the test device, (9) Except as provided in § 581.5(c)(8), the vehicle is at rest on a level rigid there shall be no breakage or release of concrete surface. fasteners or joints. (c) Barrier test condition. At the onset [42 FR 24059, May 12, 1977, as amended at 42 of a barrier impact, the vehicle’s en- FR 38909, Aug. 1, 1977; 43 FR 40231, Sept. 11, gine is operating at idling speed in ac- 1978; 47 FR 21837, May 20, 1982; 64 FR 16360, cordance with the manufacturer’s spec- Apr. 5, 1999; 64 FR 49092, Sept. 10, 1999] ifications. Vehicle systems that are not necessary to the movement of the vehi- § 581.6 Conditions. cle are not operating during impact. The vehicle shall meet the require- (Authority: Sec. 102, Pub. L. 92–513, 86 Stat. ments of § 581.5 under the following 947 (15 U.S.C. 1912); secs. 103, 119, Pub. L. 89– conditions. 563, 80 Stat. 718 (15 U.S.C. 1392, 1407); delega- (a) General. (1) The vehicle is at un- tion of authority at 49 CFR 1.50 and 501.7) loaded vehicle weight. [42 FR 24059, May 12, 1977, as amended at 42 (2) The front wheels are in the FR 38909, Aug. 1, 1977; 48 FR 43331, Sept. 23, straight ahead position. 1983] (3) Tires are inflated to the vehicle manufacturer’s recommended pressure § 581.7 Test procedures. for the specified loading condition. (a) Longitudinal impact test procedures. (4) Brakes are disengaged and the (1) Impact the vehicle’s front surface transmission is in neutral. and its rear surface two times each 1329 VerDate Aug<31>2005 15:50 Dec 10, 2008 Jkt 214214 PO 00000 Frm 01339 Fmt 8010 Sfmt 8010 Y:\SGML\214214.XXX 214214 yshivers on PROD1PC62 with CFR § 581.8 49 CFR Ch. V (10–1–08 Edition) with the impact line at any height (3) For an impact at a height between from 16 to 20 inches, inclusive, in ac- 16 inches and 20 inches, place the test cordance with the following procedure. device shown in Figure 2 so that Plane (2) For impacts at a height of 20 A is vertical and the impact line is hor- inches, place the test device shown in izontal at a height within the range. Figure 1 so that Plane A is vertical and (4) Align the vehicle so that a vehicle the impact line is horizontal at the corner touches, but does not move, the specified height. lateral center of the test device with (3) For impacts at a height between Plane A of the test device forming an 20 inches and 16 inches, place the test device shown in Figure 2 so that Plane angle of 60 degrees with a vertical lon- A is vertical and the impact line is hor- gitudinal plane. izontal at a height within the range. (5) Move the test device away from (4) For each impact, position the test the vehicle, then release it to impact device so that the impact line is at the vehicle.

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