§383.115. Requirements for double/triple trailers endorsement.
49 C.F.R. § 383.115
In order to obtain a double/triple trailers endorsement each applicant must have knowledge covering:
Procedures for assembly and hookup of the units;
Proper placement of heaviest trailer;
Handling and stability characteristics including off-tracking, response to steering, sensory feedback, braking, oscillatory sway, rollover in steady turns, and yaw stability in steady turns;
Potential problems in traffic operations, including problems the motor vehicle creates for other motorists due to slower speeds on steep grades, longer passing times, possibility for blocking entry of other motor vehicles on freeways, splash and spray impacts, aerodynamic buffeting, view blockages, and lateral placement; and
Operating practices and procedures not otherwise specified.
Notes, amendments, and revision history
Amendments
[76 FR 26890, May 9, 2011]
Source
Source: 53 FR 27654, July 21, 1988, unless otherwise noted.
Authority
Authority: 49 U.S.C. 521, 31136, 31301, et seq., and 31502; secs. 214 and 215 of Pub. L. 106-159, 113 Stat. 1748, 1766, 1767; sec. 1012(b) of Pub. L. 107-56, 115 Stat. 272, 397, sec. 4140 of Pub. L. 109-59, 119 Stat. 1144, 1746; sec. 32934 of Pub. L. 112-141, 126 Stat. 405, 830; secs. 5401 and 7208, Pub. L. 114-94, 129 Stat. 1312, 1546, 1593 (49 U.S.C. 31305(d)), sec. 23019 of Pub. L. 117-58, 135 Stat. 429, 777; and 49 CFR 1.87.
Source
Source: 52 FR 20587, June 1, 1987, unless otherwise noted.
Amendments
[76 FR 26890, May 9, 2011]