Idaho Oversize Permits and Escort Routes
ITD Commercial Vehicle Services permits in ITRPS, the pilot/escort route map, commuter hours, 129,000 lb routes and the US-12 Lochsa corridor
Quick answer
How much is an Idaho oversize permit?
An ITD single-trip permit costs $30 for oversize only and $33 when the load is overweight, plus a road use fee per mile that starts at 4 cents and climbs with weight (IDAPA 39.03.01.107; Idaho Code 49-1004). A non-divisible annual permit is $128, and annual permits bought online cost $5 less. Permits are ordered in ITRPS and cover state roadways only.
Updated October 2026 by the HTS Logistics broker team (FMCSA MC# 1178470).
Checked October 2026; the issued permit controls
Idaho allows 105,500 lb gross off the Interstate and 80,000 lb on it (Idaho Code 49-1001), and designated routes take divisible loads to 129,000 lb on a $45 annual permit, so the Idaho gross figure in our oversize permits by state table depends on the road. So do the oversize rules: ITD's Pilot/Escort Vehicle Travel Requirements map colors each state highway red, black or white (the Interstates), and the color sets the escorts, the hours and whether a load can move on a weekend.
For heavy haul transport through Idaho, HTS Logistics (broker authority MC 1178470) books the carrier, orders the ITD permit in ITRPS plus the city, county or highway district permit for any local road, and lines up pilot cars to the map. Loads past ITD's additional-approval sizes go to routing review, which ITD allows itself up to 24 working hours to finish, so those dimensions go in first.
Legal limits in Idaho
Under Idaho Code 49-1010 a load may be 8 ft 6 in wide and 14 ft tall, and a 53 ft semitrailer is allowed only on the National Network, on roads within 1 mile of it to food, fuel, repairs and rest, and on board-approved state highways; elsewhere the limit is 48 ft. ITD's 129,000 lb map (Dec 30, 2025) shows which route colors take which length, and divisible loads over 14 ft up to 15 ft high may move by permit on designated highways if the vehicle itself is no taller than 14 ft. Axle groups follow the bridge formula table in 49-1001(1); to test a spacing, use our bridge formula calculator.
| Limit | Idaho | Federal baseline | Notes |
|---|---|---|---|
| Width | 8 ft 6 in | 8 ft 6 in (102 in) on the National Network | Including load; mirrors, turn signals and tire bulge excluded, other appurtenances up to 3 in per side (IDAPA 39.03.01.010.03) |
| Height | 14 ft | No federal limit | Including load (49-1010(2)); every state-system structure under 16 ft has its clearance posted |
| Semitrailer length | 53 ft | States must allow at least 48 ft | 53 ft on the National Network and its 1-mile access routes, 48 ft elsewhere; 75 ft for a vehicle and trailers; 65 ft overall on routes the board finds curved or narrow; overhang 4 ft front, 10 ft rear |
| Gross weight | 105,500 lb | 80,000 lb | 105,500 lb is the legal maximum off the Interstate; on the Interstate it is 80,000 lb; 129,000 lb only by annual permit on designated routes (49-1001) |
| Single axle | 20,000 lb | 20,000 lb | 10,000 lb per wheel; 600 lb per inch of tire width, or 800 lb for vehicles built before July 1, 1987 (49-1002) |
| Tandem axle | 34,000 lb | 34,000 lb | Two axles 4–8 ft apart; two tandems in a row keep 34,000 lb each when the first and last axles are at least 36 ft apart (49-1001(1)(b)) |
Federal baseline: 23 CFR Part 658, eCFR as of 2026-10-14
When Idaho requires a permit and how to get one
ITD's Division of Motor Vehicles, Commercial Vehicle Services, runs the special permit office and ITRPS under Idaho Code 49-1004 and IDAPA 39.03.01, Rules Governing Special Permits (all sections eff. 7-1-24). Applications go in online, at ports of entry or through CVS, and a vehicle may not move until it has a permit or a permit number (49-1004(1)(b)). Permits cover Interstates, state highways and local roads under an ITD agreement, but not the county or city road where a state route meets it (IDAPA 39.03.01.100.03).
Annual oversize permits run 12 months, reach 16 ft wide, 15 ft 6 in high and 120 ft long on black and Interstate routes and 12 ft 6 in wide on red routes, and carry the current Pilot/Escort map as part of the permit (311.01). Overweight permits are for non-divisible loads reduced to a practical minimum, need at least 5 axles and may not exceed 800 lb per inch of tire width, and annual weights rise by route color on the Route Capacity Map, from 22,500 lb single and 38,000 lb tandem on yellow routes to 33,000 lb and 56,000 lb on black (308). ITD publishes no single-trip validity period; ITRPS fills in the end date by permit type.
Permit office
- Issuing office
- ITD Division of Motor Vehicles, Commercial Vehicle Services (CVS)
- Address
- PO Box 7129, Boise, ID 83707-1129 (headquarters: 11331 W Chinden Blvd, Building 8, Boise)
- Permit system
- ITRPS (Idaho Transportation Permits System)
- Phone
- (208) 872-3163
- [email protected]
- Hours
- Phones 8:00 AM–5:00 PM Mountain, Monday–Friday (ITD's ITRPS notice lists 7:30 AM–5:00 PM)
- Roads covered
- Interstates, state highways and local roads under an ITD agreement; not other county highways or city streets
Fees
| Permit | Fee |
|---|---|
| Oversize only, single trip | $30 |
| Overweight, or oversize and overweight (non-divisible), single trip | $33 plus the road use fee per mile |
| Non-divisible oversize/overweight annual | $128 |
| Annual Extra Length/Excess Weight (divisible loads to 129,000 lb on designated routes) | $45 |
| Other $45 permits | Annual divisible loads, divisible loads to 15 ft high, hay bales two wide, kiln-stacked lumber, annual manufactured home and modular building permits, implements of husbandry, crane booms |
| Reissue or transfer | $15 |
| Annual permits bought online | $5 less |
| Travel authorization at a port of entry, up to 15% over axle limits | $50 (49-1001(8)) |
| Local 129K route permit | Up to $55 per vehicle a year (49-1004B) |
| Axles | Column 1 (4 cents a mile, plus 4 cents per 2,000 lb) starts at | Column 2 ($1.02 a mile, plus 7 cents per 2,000 lb) starts at |
|---|---|---|
| 2 | 40,001 lb | Not listed |
| 3 | 54,001 lb | Not listed |
| 4 | 68,001 lb | Not listed |
| 5 | 80,001 lb | 131,001 lb |
| 6 | 97,001 lb | 148,001 lb |
| 7 | 114,001 lb | 165,001 lb |
Above 7 axles the starting weights rise 17,000 lb for each added axle, and the minimum fee is 4 cents a mile. Tax-supported agencies need permits but pay no fees.
ITD's own fee chart gives the cents-per-mile figure at a given weight. Single-trip road use fees are collected at issuance, while annual overweight holders report laden miles and pay quarterly, and a missed report suspends the account (IDAPA 39.03.01.310). Fees are refundable only if CVS hears from the permittee within 2 working days after the start date, or if ITD issued the permit in error. Payment is by card through ITRPS; no escrow or account option was found.
Escort and pilot car rules in Idaho
Escorts come off ITD's Pilot/Escort Vehicle Travel Requirements and Vertical Clearance of Structures Map (Jan 8, 2025), which annual permit holders follow directly, while single-trip permits print their own escort section (IDAPA 39.03.01.306.03). Idaho has no pilot/escort certification, training or reciprocity rule, which sets it apart from the certifying states on our state pilot car requirements page.
| Load | Escort requirement |
|---|---|
| Red routes, 8 ft 7 in to 10 ft wide | 1 front |
| Red routes, 10 ft 1 in to 12 ft 6 in wide | 1 front and 1 rear; the map lists nothing wider, which is also the red-route annual limit, so wider loads run on single-trip permits whose escort section controls |
| Black routes, 12 ft 1 in to 14 ft wide | 1 front (none up to 12 ft) |
| Black routes, 14 ft 1 in to 18 ft wide | 1 front and 1 rear |
| White routes along the Interstates, 15 ft 1 in to 18 ft wide | 1 rear (none up to 15 ft) |
| Length | Red routes over 75 ft: 1 front. Black routes over 120 ft: 1 front. Front and rear when a red-route load is over 75 ft and 8 ft 7 in to 12 ft 6 in wide, or a black-route load over 120 ft and 12 ft 1 in to 18 ft wide |
| Over 16 ft high | Front pilot with a non-metallic height pole deployed (306.02, 306.09.f) |
| Width blocks the driver's view 200 ft behind | Rear escort (306.12) |
| Opposing traffic must be held at turnouts | A third, advance pilot may be required (306.13) |
| Two-lane highways, over 18 ft wide, 150 ft long or 16 ft high | Traffic control plan by a licensed engineer or ATSSA-certified traffic control supervisor (300.09–300.10) |
| Police escort | No fixed trigger; on US-12 MP 74–174, Forest Service review loads need ambulances and possible law enforcement escorts (307) |
The map's legend gives white routes no label; on the map they run along I-84, I-15, I-86 and I-90. Escorts on county permits that ITD issues follow the same map.
An Idaho pilot vehicle weighs no more than 16,000 lb and tows nothing. Its kit is a roof-mounted 12 in by 5 ft OVERSIZE LOAD sign in 8 in black letters on yellow, flashing or rotating amber lights visible 500 ft, a STOP/SLOW paddle of 18 in, three bi-directional triangles, a 5 lb B,C fire extinguisher, 2 spare signs, a hard hat and an FCC-licensed two-way radio reliable over at least 1/2 mile, and in rural areas it keeps about 1,000 ft from the load. Up to 4 loads may convoy between pilots, none wider than 14 ft on black routes or 12 ft 6 in on red.
Travel times, curfews and holidays
Idaho's hours follow the same route colors (IDAPA 39.03.01.305): red routes are daylight only, and black and Interstate routes allow 24-hour travel, 7 days a week, for loads within 12 ft wide, 120 ft long and 15 ft high.
- Larger loads on black and Interstate routes: daylight only, with Friday afternoon and weekend travel allowed. Any vehicle in the combination with more than 7 ft of front overhang is daylight only on two-lane, two-way highways (305.07).
- Red-route weekends: travel stops at 2 PM Friday and resumes at sunrise Monday (the map says dawn), so a red-route leg that misses Friday's cutoff waits until Monday.
- Commuter hours: oversize loads more than 13 ft wide stay off state roadways between 6:00 and 9:00 in the morning and 4:00 and 6:30 in the evening, Monday–Friday, on I-84 MP 26–59 in the Boise valley, I-90 MP 0–17 at Coeur d'Alene, I-15 MP 115–121 at Idaho Falls, I-15 MP 67–74 and five other Pocatello valley segments, and US-93 MP 41–53 at Twin Falls, and within 1 mile of Eagle, Emmett, Garden City, Middleton and Star (305.08). Permitted loads allowed to run in those hours keep to the far right lane.
- Darkness: over-width loads moving after dark (sunset plus 30 minutes until 30 minutes before sunrise) or at visibility under 500 ft, light their extremities amber to the front and red to the rear, on top of normal clearance lights (104.02). ITD may approve buildings and very large loads to move between 2 AM and sunrise to avoid traffic.
- Hazards: a permit becomes invalid en route when ITD or the State Police give notice of a hazardous road condition, when 511 marks the road Difficult (the permit attachments add Closed), or in wind over 40 mph, visibility under 500 ft, or ice, snow, frost or mud that costs traction (102.06). The driver checks route conditions before leaving.
| Holiday | Black and Interstate routes, loads over 12 ft wide, 120 ft long or 15 ft high | Red routes |
|---|---|---|
| New Year's Day 2026 (Thursday) | Stop by 4 PM Wed Dec 31, 2025; resume at sunrise Fri Jan 2 | Stop 2 PM Wed Dec 31; resume at sunrise Fri Jan 2 until the 2 PM Friday weekend stop |
| Memorial Day (Mon May 25) | Stop by 4 PM Sun May 24; resume at sunrise Tue May 26 | Stopped from 2 PM Fri May 22; resume at sunrise Tue May 26 |
| Independence Day (Sat Jul 4) | Stop by 4 PM Fri Jul 3; resume at sunrise Sun Jul 5 | Stop 2 PM Fri Jul 3; resume at sunrise Mon Jul 6 |
| Labor Day (Mon Sep 7) | Stop by 4 PM Sun Sep 6; resume at sunrise Tue Sep 8 | Stopped from 2 PM Fri Sep 4; resume at sunrise Tue Sep 8 |
| Thanksgiving (Thu Nov 26) | Stop by 4 PM Wed Nov 25; resume at sunrise Fri Nov 27 | Stop 2 PM Wed Nov 25; Friday Nov 27 from sunrise to 2 PM, then stopped until sunrise Mon Nov 30 |
| Christmas (Fri Dec 25) | Stop by 4 PM Thu Dec 24; resume at sunrise Sat Dec 26 | Stop 2 PM Thu Dec 24; resume at sunrise Mon Dec 28 |
| New Year's 2027 (Friday) | Stop by 4 PM Thu Dec 31, 2026; resume at sunrise Sat Jan 2 | Stop 2 PM Thu Dec 31; resume at sunrise Mon Jan 4, 2027 |
ITD names the six holidays (305.04) but publishes no dated calendar, so these windows are our application of the rule: on black and Interstate routes larger loads stop by 4:00 PM the day before and resume at sunrise the day after, and on red routes travel stops at 2 PM the day before, with the Friday-to-Monday weekend stop layered on top. Loads within 12 ft wide, 120 ft long and 15 ft high run on black and Interstate routes through every holiday. The rule does not address observed days.
Idaho spring breakup restrictions and pass chains
ITD posts spring breakup restrictions route by route rather than on a calendar (IDAPA 39.03.01.106; Idaho Code 49-1005), weighing construction, moisture, temperature and how badly frost heaves are breaking the road, and highway districts, counties and cities post their own roads the same way, with signs at each end and at major intersections. Our state frost law guide compares Idaho's approach with fixed-season states.
- Limits: a posted restriction caps any axle at 16,000, 14,000 or 12,000 lb, and on restricted two-lane state highways special permits stop at 12 ft 6 in wide while it lasts (106.03–106.05). Trucks and buses of 10,000 lb or more slow to 30 mph at red markers on existing signposts, and a green marker restores legal speed.
- Permits: normal overweight limits can be suspended in restricted areas. An overweight special permit still issues there only for non-divisible loads on tires at least 10 in wide, with no more than 10,000 lb on a single axle with two wheels or 14,000 lb on one with four or more (106.08). The 2,000 lb farm, forest and refuse allowance never applies over seasonal postings (49-1011(3)).
- Timing: ITD posts signs and markers the day before restrictions take effect and enforces them the day after posting, and a freeze-up can let it waive a restriction with green markers. In February 2023 ITD reinstated North Idaho limits on SH-3, SH-5, SH-53 and SH-54 at 14,000 lb per axle and 30 mph, held U.S. highways to 30 mph at legally permitted weights, and restricted no Interstates.
- 2026: no ITD notice of 2026 postings or lifting dates was found (checked Oct 17, 2026), and none was in effect that day. Idaho 511, including the 511 app in trucker mode, shows current postings.
- Pass chains: when ITD finds Lookout Pass or Fourth of July Pass on I-90, or Lolo Pass on US-12, unsafe enough, it may require chains on commercial vehicles after several advance notices and with pull-outs provided, on at least one tire each side of one drive axle and of one axle near the rear of each towed vehicle, and it may never post chains on bare pavement (Idaho Code 49-948).
What catches carriers in Idaho
Every port of entry is a stop
All oversize vehicles stop at every port of entry for inspection (300.02), from Huetter on I-90 and East Boise on I-84 to Inkom and Sage Junction on I-15 and Bonners Ferry on US-95/US-2. The Lewiston port on US-12/US-95 is closed for construction into early 2027.
IDAPA 39.03.01.300.02; ITD Ports of Entry page
Low structures off the Interstate
An over-height permit depends on every structure on the route, and ITD may take up to 24 working hours to evaluate it. ITD's attachments list structures under 15 ft 7 in, such as US-30 MP 334.14 west of Pocatello at 13 ft 4 in, US-20B/26 in Idaho Falls at 13 ft 7 in to 13 ft 8 in and US-95B in Craigmont at 13 ft 11 in. At 16 ft 6 in or more, the carrier contacts the power utilities and may owe advance notice for traffic signals.
IDAPA 39.03.01.302; ITD Divisible Oversize attachment (rev. 3-26-24)
Signs follow width, not length
Idaho ties the load sign to width: every vehicle or load over 8 ft 6 in wide shows an OVERSIZE LOAD sign at least 12 in high by 5 ft wide, with 8 in black letters (1 in stroke) on a yellow field, mounted on the tractor's front or roof and on the rear of the load, and the sign comes off when the truck runs empty at legal size. Flags of red or fluorescent orange, 18 in square or larger, mark over-width loads and any rear overhang of 4 ft or more; other states size these differently, as our load sign requirements state by state show. Missing signs or flags are grounds for revocation.
IDAPA 39.03.01.104.04–104.05, 108.01
Violations bar the truck from permits
A first, second or third conviction for leaving the 129K routes, traveling outside permitted hours, running without required pilots or night lights, or axle groups more than 15 percent over can bar the vehicle from new permits for 30 days, 6 months and then 1 year.
IDAPA 39.03.01.108
The East Kooskia Bridge is posted at 8 tons
Since Sep 14, 2026 ITD has limited the East Kooskia Bridge to 8 tons GVW, which closes it to heavy commercial traffic; heavier vehicles use the SH-13 bridge about 1 mile west. ITRPS also posts Idaho's posted bridges and vertical structures lists.
ITD news, Sep 11, 2026
The US-12 Lochsa corridor, 129,000 lb routes and big loads
Idaho has no superload category; the word does not appear in IDAPA 39.03.01. Three sets of thresholds pull a load out of routine handling instead: ITD's additional-approval sizes, the traffic control plan sizes on two-lane highways and the bridge analysis weights.
Additional ITD approval
Loads over 16 ft wide on red and black routes, over 18 ft wide on Interstates, over 16 ft high on any route, or over 120 ft long off the Interstate and 150 ft on it go to routing review for district approval in ITRPS, which can take up to 24 working hours (305.11).
Bridge analysis
Any single or steer axle over 35,000 lb needs bridge approval. ITD may take up to 3 business days to analyze a vehicle up to 250,000 lb and up to 10 business days over 250,000 lb or for a third-party review; combinations over 800,000 lb need a pre-approved third-party analysis the applicant arranges and pays for (IDAPA 39.03.01.315–316). The ITRPS FAQ says 5–10 days; the rule governs.
US-12 through the Nez Perce-Clearwater National Forest
Under a federal court decision, the U.S. Forest Service regulates oversize loads on US-12 MP 74–174 along the Lochsa and Clearwater. Loads over 16 ft wide, 150,000 lb or 150 ft long, loads needing more than 12 hours to cross, and loads needing roadway or vegetation changes go to Forest Service review, then need ambulances and possible law enforcement escorts, an Idaho State Police inspection before the permit issues, travel times set by traffic volume (night travel may be required) and ITD monitoring so only one such load is on the section at a time (307).
129,000 lb and extra-length routes
The $45 annual permit carries limits by route color on ITD's Dec 30, 2025 map: 115 ft and 129,000 lb with 8.75 ft of off-tracking on black (Interstate) routes, 115 ft and 105,500 lb on red, 95 ft on blue and orange, 85 ft and 105,500 lb on clear, and nothing past legal on brown. Combinations stay within 4 units, hold 20 mph on any upgrade, keep 500 ft apart, run no trailer more than 4,000 lb heavier than one ahead of it, and carry the Idaho Off-Track Computation Form when required, or the permit is invalid.
Local roads and highway districts
Cities, counties and highway districts permit their own roads (Idaho Code 49-1004(1)) or sign agreements so ITD's permits include them; ITRPS posts attachments for participants such as Ada County, Canyon County Highway District 4, Power County Highway District and Washington County. A local authority must decide a 129K request within 30 days and may charge up to $55 per vehicle a year, and on ITD's 129K map light green local routes need the local permit while dark green routes take ITD's.
Buildings, homes and insurance
Buildings 14 ft or more wide and over-width manufactured homes, modular buildings and office trailers carry proof of at least $300,000 combined single limit liability when hauling the owner's own unit or $750,000 for hire (IDAPA 39.03.01.303, 314). Homes run up to 80 ft long and 16 ft wide at the base, behind tow vehicles that hold at least 25 mph and, over 10 ft wide, drivers with a Class A or B CDL.
Crossing into a neighboring state
- West into Oregon on I-84: ODOT sets pilot counts by each highway's Route Map 2 color and Group Map 1 group, charges single-trip non-divisible loads RUAF by the equivalent single-axle load mile on top of its $8 fee, and lets nothing over 12 ft wide move at night. US 95 from Idaho to Nevada is one of ODOT's listed I-84 alternates for 16 to 17 ft loads; see our Oregon pilot chart and permit fee page.
- East into Montana over Lookout Pass on I-90: on MDT's Interstates a load as wide as 18 ft may roll at any hour and on holidays, with the first rear pilot only past 16 ft 6 in, and requires trucks towing trailers to carry traction devices on designated passes from October 1 to April 30; see our Montana oversize permit rules.
- South into Utah on I-15 or I-84: UDOT wants its permit before the load crosses unless it enters at St. George, Echo or Wendover, which sit on the Arizona, Wyoming and Nevada lines, so a load from Idaho buys the Utah permit in advance. The Wasatch Front curfew, weekdays 6–9 AM and 3:30–6 PM, begins below the Perry Willard interchange at I-15 Exit 357, as our Utah oversize permits and port rules explain.
Idaho oversize permit questions
Does Idaho require pilot car certification?
No. IDAPA 39.03.01.306 sets the pilot vehicle's equipment, not the driver's training, and ITD publishes no certification, training or reciprocity list. The vehicle weighs 16,000 lb or less, tows nothing, and carries a 12 in by 5 ft OVERSIZE LOAD roof sign, amber lights visible 500 ft, a STOP/SLOW paddle, triangles, an extinguisher, 2 spare signs and an FCC-licensed two-way radio.
Do Idaho oversize loads move on weekends?
On black routes and the Interstates, yes: Friday afternoon and weekend travel is allowed, around the clock for loads within 12 ft wide, 120 ft long and 15 ft high and in daylight for larger ones. On red routes, travel stops at 2 PM Friday and resumes at sunrise Monday (IDAPA 39.03.01.305.01). The permit office itself works Monday through Friday only.
What is Idaho's 129,000 lb permit?
The $45 annual Extra Length/Excess Weight permit lets divisible loads run between 105,501 and 129,000 lb on the routes ITD maps for it, I-15, I-84, I-86, I-90 and I-184 included, when they meet the bridge formula and are registered for the weight. Combinations may reach 115 ft and 4 units on the best routes, must hold 20 mph on any upgrade and keep 500 ft apart.
What are Idaho's commuter hours for oversize loads?
Oversize loads more than 13 ft wide may not move 6:00 to 9:00 AM or 4:00 to 6:30 PM local time on weekdays in the Boise valley (I-84 MP 26 to 59), Coeur d'Alene (I-90 MP 0 to 17), Idaho Falls, the Pocatello valley and Twin Falls, or within 1 mile of Eagle, Emmett, Garden City, Middleton and Star (IDAPA 39.03.01.305.08). Permitted loads allowed to run in those hours keep to the far right lane.
Can an oversize load use US-12 through the Lochsa corridor?
Larger ones need Forest Service review. On US-12 MP 74 to 174 in the Nez Perce-Clearwater National Forest, loads over 16 ft wide, 150,000 lb or 150 ft long, or needing more than 12 hours or roadway changes, go to the U.S. Forest Service. They need ambulances, possible law enforcement escorts and an Idaho State Police inspection before the permit issues, and only one such load may be on the section.
Does Idaho have frost laws?
Yes, as spring breakup restrictions posted route by route with no fixed calendar (IDAPA 39.03.01.106). A posting caps any axle at 16,000, 14,000 or 12,000 lb, limits special permits on restricted two-lane highways to 12 ft 6 in wide, and slows trucks to 30 mph at red markers. ITD has not applied the restrictions to Interstates, and Idaho 511 shows current postings.
Where do I apply for an Idaho oversize permit?
Online in ITRPS, at an Idaho port of entry, or through ITD Commercial Vehicle Services at (208) 872-3163 or [email protected]. CVS phones are staffed on weekdays and no 24-hour permit desk is published; in an emergency that endangers public safety, CVS or a port of entry can approve a move verbally, with the formal application afterward. Payment is by card through ITRPS.
Sources
Facts on this page were checked in October 2026 against the sources below. Rules and rates change; we confirm current requirements on every move.
- eCFR 23 CFR Part 658: Truck Size and Weight (federal baseline)
- Idaho Code Title 49, Chapter 10 index
- Idaho Code 49-1001 Allowable gross loads
- Idaho Code 49-1002 Load per inch width of tire
- Idaho Code 49-1004 Permits for overweight or oversize loads
- Idaho Code 49-1004A New special route designations by the department
- Idaho Code 49-1004B Special route designations and permits by local authorities
- Idaho Code 49-1004C Special permits, Interstate system
- Idaho Code 49-1005 Special regulations and notice
- Idaho Code 49-1010 Size of vehicles and loads
- Idaho Code 49-1011 Exception to weight and size limitations
- Idaho Code 49-913 Lamp or flag on projecting load
- Idaho Code 49-940 Mirrors (rear escort substitute)
- Idaho Code 49-948 Tire equipment and pass chain requirements
- IDAPA 39.03.01, Rules Governing Special Permits (eff. 7-1-24)
- IDAPA 39.03.08 Rules Governing Self-Propelled Snowplows (eff. 7-1-24)
- ITRPS permit system (login page and Helpful Links)
- ITD Pilot/Escort Vehicle Travel Requirements and Vertical Clearance of Structures Map (January 8, 2025)
- ITD Extra Length/Excess Weight up to 129,000 Pounds statewide map (December 30, 2025)
- ITD Non-Divisible Oversize or Overweight Permit attachment (rev. 03-26-24)
- ITD Divisible Oversize Permit attachment (rev. 3-26-24)
- ITD Extra Length/Excess Weight up to 129K Permit attachment (rev. 4-24-26)
- ITD General Permit Provisions attachment
- ITD Non-Divisible Overweight Fees Chart
- ITD Overweight Charts for Colored Routes
- ITD Spring Break Up Season notice (rev. 4-4-2024)
- ITD Office Hours and Holidays notice
- ITRPS Frequently Asked Questions
- ITRPS Customer User Guide (July 2021)
- ITD Commercial Vehicle Services
- ITD Ports of Entry
- ITD Freight (129K routes, ITRPS link)
- ITD news, Feb 1, 2023: Load restrictions to start again this Friday
- ITD news, Sep 11, 2026: East Kooskia Bridge weight restriction
Crossing Idaho on a red route or the Lochsa?
Route color decides an Idaho load's escorts, hours and weekend stop. With the load's width, height, axle weights, origin and destination in hand, we check every leg against the ITD map, order the ITRPS and local permits, and book the carrier and pilots.
- FMCSA-licensed property broker, MC# 1178470
- Permits, escorts and route surveys arranged for each move
- Carriers checked for authority, insurance and safety record
- Commercial shippers, dealers, contractors and auction buyers
Prefer to talk? Call (631) 683-8275.
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Keep reading
- Oregon Oversize PermitsODOT's $8 ORION permit plus road use fees, pilot counts by Route Map 2 color, Attachment H night and Portland hours, and the I-84 superload alternates.
- Montana Oversize PermitsMDT permits from $10, 24/7 Interstate moves to 18 ft wide, Interstate vs. two-lane pilot rules, whole-day holiday weekends and spring load postings.
- Utah Oversize PermitsUDOT fees to $540, night moves up to 14 ft wide, the Wasatch Front curfew and pilot certification.
- Oversize PermitsLegal limits, permit fees, escort triggers and travel rules by state, from official sources.
- Legal Load LimitsLegal width, height, length and axle weights by state, plus night, weekend and 2026 holiday travel rules.
- Pilot Car RequirementsWhen each state requires escorts: width, length, height and overhang triggers, certification and police escorts.