
Requirements Click Here |
Limits Click Here |
Permit Info Click Here |
Pilot & Pole Car Providers Click Here |
Axle |
Axle |
Axle |
Vehicle Weight |
Truck |
Trailer |
Trailer |
& Semi- Trailer |
& Semi- Trailer & Full Trailer |
& Triples |
Specials |
|||
hwys with 12' + lane width 96" on hwys with less than 12' width |
on hwys with 12' + lane width |
on hwys with 12'= lane widths |
only on hwys with 12'+ lane widths and 1 mile access to designated routes |
||||||||||
weights based on 10" or greater Tire widths |
by Formula* |
53' trailers allowed on certain routes with a 41' Maximum from kingpin to center of rear axle; and by permit on certain other routes |
(85' on certain routes) |
seasonal permits only on limited routes |
limits vary by district. fax-on-demand info available at 907-348-9876 |
||||||||
tractor length |
+ tractor length |
||||||||||||
loaded; not specified if trailer is 53'6" or less |
|||||||||||||
Maximum from kingpin to center of rear axle on single axle trailer; Unlimited with 40' maximum from kingpin to center of rear axle on two or more axle trailers |
if trailer not more than 28'6" 65' if either trailer is greater than 28'6" |
||||||||||||
14'6" on state designated Hwys only |
if trailer is 28'6" or less |
on selected Interstate routes and to access to their terminals |
|||||||||||
if trailer is 48' or less |
|||||||||||||
but each trailer not to exceed 29' |
|||||||||||||
Maximum from kingpin to center of rear axle assembly |
if kingpin to center of rear axle assembly is 41' or less |
||||||||||||
Special |
96" on hwys with lane width less than 12' |
(no bridge requirements); semi trailers from 48' to 53' cannot exceed 41' from kingpin to center of rear axle, underride protection in rear of trailer |
if trailer is 48' or less |
if trailers are 28' or less |
formule for axle weight limits distance from #1 to #5 axle (outside bridge) = 51 2 or more axles (internal bridge) = federal formula *Twin 48' trailers allowed on Florida Turnpike only |
||||||||
96" 96" on hwys with lane width less than 12' |
Maximum from kingpin to center of rear axle assembly |
||||||||||||
or 600 lb/inch width of tire whichever is more restrictive |
Interstate and state- designated routes with extra-length permits |
seasonal weight limits on non- designated routes are variable - approx Feb to May Information for Hwys under Frost Law available by calling 208-334-8420 and at first port of entry |
|||||||||||
trailers longer than 48' must not exceed 42'6" from kingpin to rear axle |
singles 28'6" doubles |
from center of first to center of fifth or last axle |
overall on Class III and non- designated highways |
||||||||||
no overall length if trailer is 53' or less |
if each trailer is 28'6" or less or 65' for 3 vehicle combination |
only on Indiana Toll roads and within 15 miles of makeup/ breakup lot |
|||||||||||
single 28'6" doubles |
singles 28'6" doubles |
each trailer |
transporters are allowed 65' plus overhang not exceeding 3' in front and 4' in rear |
||||||||||
each trailer |
on designated routes only |
and trailer: 65' |
|||||||||||
of width for all tires |
designated routes only |
||||||||||||
designated routes only |
|||||||||||||
vehicle 14'0" load |
distance from center of rear axle of teh tractor and center of the rear axle of the trailer must not exceed 38'; 53' Semitrailers with kingpin to center of rearmost trailer axle not exceeding 43' may operate with a permit on designated routes only |
distance from center of the rear axle of the tractor and the center of the rear axle of the trailer must not exceed 38' |
tractor and permitted 53' trailer not to exceed 70' |
on state rds unless on designated Maine System except for reasonable access. Call DOT 207-287-3775 for information |
weight limits apply Feb 1 - Jun 1 |
||||||||
1,000 lb tolerance |
semitrailers up to 53' permitted with certain restrictions pertaining to kingpin setback and HazMat cargo; semitrailers in excess of 48' are not permitted off Maryland truck Route system |
except semitrailer length restricted to 48' on non- designated routes |
except on Interstate System and up to 1 mile to terminals or facilities for food, fuel, and rest |
||||||||||
each trailer |
|||||||||||||
per axle |
(5 axle unit) |
semitrailers are limited to 2 axles and shall have a wheelbase of 40'5", plus or minus 6", as measured from the kingpin to the center of the axles or the center of the tandem axle assembly if equipped with 2 axles these units are restricted to state- designated hwys 53' trailer require a premit |
if each trailer is 28'6" or less or the overall length measured from the front of the first trailer to the rear of the last trailer does not exceed 58' including load |
weight limits apply For info 800-787-8960 |
|||||||||
including overhang |
including overhang trailers from 48' to 53' require no more than 43' from center of kingpin to center of rear axle group |
including overhang |
including overhang |
weight limits apply and State Trunk Hwys are posted if less than 10 ton axle limit. Local roads posted if other than 5 ton axle limit |
|||||||||
if trailer is 53' or less |
maximum for semitrailer and 30' for full trailer in doubles combination |
||||||||||||
Maximum of tire Mfg rating |
defines as primary system segments located more than 10 miles from Interstate and designated routes |
||||||||||||
only on Interstates and Routes w/ permit |
weight limits apply call 406-444-7220 |
||||||||||||
required; restricted routes |
weight limits apply |
||||||||||||
including connection devices |
Interstates and Designated routes only |
weight limits apply |
|||||||||||
or less |
if trailer is 48' or less |
if trailers do not exceed 28' each, allowed only on designated and Interstate routes. Not allowed on non- designated routes except on authorized reasonable access routes |
weight limits apply NO tractor- trailer combos permitted on frost law posted highways |
||||||||||
if trailer is 48' or less |
only on Interstate and designated routes |
||||||||||||
trailer not to exceed 28'6" or combined length of 65' |
|||||||||||||
designated track access hwys outside NYC with 10'or more lane width. 96" elsewhere |
full and semi-trailers in doubles not to exceed 28'6 each |
weight limits apply |
|||||||||||
53' trailers allowed on designated access hwys only |
and full trailer combinations not to exceed 60' |
||||||||||||
of tire width |
and full trailers 75' seasonal weight limits apply |
||||||||||||
of tire width |
if trailer is 53' or less |
if trailer is 28'6" or less |
|||||||||||
(5 axle unit) |
Interstate and divided hwys with permits only |
||||||||||||
of tire width up to 20,000 lb. |
overall on all Group 1 hwys with maximum 53' trailer. No overall length limit on National network hwys with a maximum 53" trailer |
See NOTE below |
Interstate and state designated routes by permit only |
can be obtained from the Dept of transportation or at Ports of Entry |
|||||||||
numbered Routes unless posted |
|||||||||||||
on Interstate and non-interstate routes with prior approval call: 401-588-3020 ext. 203 |
if trailer is 48'6" or less |
if trailer is 48'6" or less |
|||||||||||
of tire width |
by single trailer length |
length, excluding tractor may not exceed 81'6" Neither trailer may exceed 45' |
Interstate and designated highways by permit only |
weight limits apply call DOT at 605-773-3704 |
|||||||||
trailers measuring 40' to 50' from kingpin to rear of trailer require a distance of 41' or less from kingpin to center of rear axle group |
but trailer may not exceed 50'; or 41' axle group from kingpin to center of rear axle |
allowed if both trailers are 28'6" or less |
trailer 75' |
||||||||||
of tire width |
if trailer is 53' or less |
if trailer is 28'6" or less |
combination that contains a truck tractor does not have a minimum legal length; any vehicle combination that does not contain a truck tractor is limited to 65' overall length |
||||||||||
manufacturers rating |
measure trailer |
hooked together shall not exceed 61' |
with permit only. Permit must be obtained prior to beginning operation and takes 2 to 4 weeks |
and trailer 65' |
|||||||||
of tire width; all other tires are limited to 500 lb/inch of tire width |
if trailer is 53' or less |
if two trailers do not exceed 61' |
trailer: 75'. seasonal weight limits apply postings are available at Ports of Entry |
||||||||||
73,000 or 80,000 lb. |
96" on hwys with lane width less than 10' |
||||||||||||
only on designated routes |
full trailers: 65' |
||||||||||||
in tractor- trailer combination; 48' for first trailer in doubles combination |
but cannot exceed 81' from front of first trailer to rear of second trailer. Heavier trailer must be first if weight differences exceed 5,000 lbs. |