Colorado Code § 42-4-505

Longer vehicle combinations - rules
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(1) (a) Notwithstanding any other
provision of this article to the contrary, the department of transportation, in the exercise of its
discretion, may issue permits for the use of longer vehicle combinations. An annual permit for
such use may be issued to each qualified carrier company. The carrier company shall maintain a
copy of such annual permit in each vehicle operating as a longer vehicle combination; except
that, if a peace officer, as described in section 16-2.5-101, C.R.S., or an authorized agent of the
department of transportation may determine that the permit can be electronically verified at the
time of contact, a copy of the permit need not be in each vehicle. The fee for the permit shall be
two hundred fifty dollars per year.
(b) Notwithstanding the amount specified for the fee in paragraph (a) of this subsection
(1), the executive director of the department by rule or as otherwise provided by law may reduce
the amount of the fee if necessary pursuant to section 24-75-402 (3), C.R.S., to reduce the
uncommitted reserves of the fund to which all or any portion of the fee is credited. After the
uncommitted reserves of the fund are sufficiently reduced, the executive director of the
department by rule or as otherwise provided by law may increase the amount of the fee as
provided in section 24-75-402 (4), C.R.S.
(c) The department shall provide the option to a company filing for a permit under this
section to file an express consent waiver that enables the company to designate a company
representative to be a party of interest for a violation of this section. The appearance of the
company representative in a court hearing without the operator when the operator has signed
such waiver shall not be deemed the practice of law in violation of article 93 of title 13.
(2) The permits shall allow operation, over designated highways, of the following
vehicle combinations of not more than three cargo units and neither fewer than six axles nor
more than nine axles:
(a) An unladen truck tractor, a semitrailer, and two trailers. A semitrailer used with a
converter dolly shall be considered a trailer. Semitrailers and trailers shall be of approximately
equal lengths not to exceed twenty-eight feet six inches in length.
(b) An unladen truck tractor, a semitrailer, and a single trailer. A semitrailer used with a
converter dolly shall be considered a trailer. Semitrailers and trailers shall be of approximately
equal lengths not to exceed forty-eight feet in length. Notwithstanding any other restriction set
forth in this section, such combination may have up to eleven axles when used to transport
empty trailers.
(c) An unladen truck tractor, a semitrailer, and a single trailer, one trailer of which is not
more than forty-eight feet long, the other trailer of which is not more than twenty-eight feet six
inches long. A semitrailer used with a converter dolly shall be considered a trailer. The shorter
trailer shall be operated as the rear trailer.
(d) A truck and single trailer, having an overall length of not more than eighty-five feet,
the truck of which is not more than thirty-five feet long and the trailer of which is not more than
forty feet long. For the purposes of this paragraph (d), a semitrailer used with a converter dolly
shall be considered a trailer.
(3) (a) The long combinations are limited to interstate highway 25, interstate highway
76, interstate highway 70 west of its intersection with state highway 13 in Garfield county,
interstate highway 70 east of its intersection with U.S. 40 and state highway 26, the
circumferential highways designated I-225 and I-270, and state highway 133 in Delta county
from mile marker 8.9 to mile marker 9.7. The department of transportation shall promulgate
rules to provide carriers with reasonable ingress to and egress from such designated highway
segments.
(b) Upon action by the congress of the United States to lift the freeze imposed by the
federal "Intermodal Surface Transportation Efficiency Act of 1991", Pub.L. 102-240, as
amended, concerning the use of longer vehicle combinations, either by the total freeze being
lifted by congress or by the approval of pilot projects to expand the use of longer vehicle
combinations by the states, the department of transportation shall undertake a process to evaluate
both interstate and state highways for possible authorization by the department of additional
highway segments for inclusion by the general assembly in paragraph (a) of this subsection (3).
During the review process, the department shall solicit input from all relevant stakeholders and
shall work within existing statutory and regulatory guidelines. The department shall commence
the review process within ninety days after action by congress that would allow expansion of the
longer vehicle combination route network in Colorado.
(4) The department of transportation shall promulgate rules and regulations governing
the issuance of the permits, including, but not limited to, selection of carriers, driver
qualifications, equipment selection, hours of operation, and safety considerations; except that
they shall not include hazardous materials subject to regulation by the provisions of article 20 of
this title.
(5) Any person who violates any provision of this section commits a class B traffic
infraction.

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