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Delaware trucking rules

Fees, CDL costs, weight and size limits, chain laws and new bills for truckers and trucking companies in Delaware. Updated 2026-10-24.

Must-know rules · Weight, oversize & chains · Fees · Bills

Must-know rules

Delaware has a strict 3-minute idling limit for vehicles over 8,500 lb. Oversize/overweight moves go through DelDOT's online permit system with set fees, daylight-only travel and holiday bans. I could not confirm truck speed limits, chain/traction rules, weigh-station rules, specific hazmat routes or tunnels, a weight-distance tax, or the HB67 towing law, so they are left out.

Researched by our AI agent from the linked sources on 2026-10-21. Always confirm with the source.

• Must knowIdling limit

  Idling a vehicle over 8,500 lb GVW for more than 3 minutes is mostly prohibited. Fines run $50–$500 per offense, and later offenses run $500–$1,500. Emergency vehicles are exempt, and other situations may fall under the regulation's exemption section.

  DNREC – Reducing Diesel Emissions (Anti-Idling Regulations, 7 DE Admin. Code 1145)
• Must knowOversize/overweight permit trigger

  You need a permit if gross weight exceeds the statutory limits, or if any single axle exceeds its limit, even when gross weight is legal. Applications are entered in DelDOT's online OSOW Permit System.

  2 Del. Admin. Code 2405 – Oversize/Overweight Hauling Permit Policy and Procedures Manual

Weight limits, oversize permits and chain laws

Delaware's general limits are 8 ft 6 in wide and 13 ft 6 in high. A single-trip oversize permit costs $30, lasts 5 days, and allows travel sunrise to sunset, Monday through Sunday. I found no chain-carry or chain-control law for trucks. Chains are only allowed when needed for safety.

Weight limits

80,000 lb gross, 20,000 lb single axle, 34,000 lb tandem
Single and tandem axle limits differ by road. Interstates and U.S. numbered routes allow 20,000 lb single and 34,000 lb tandem. All other highways allow 22,400 lb single and 36,000 lb tandem. Gross limits shown are 73,280 lb for 4-axle single vehicles on other highways and 80,000 lb for 5-axle combinations. Other statutory exceptions: live-haul poultry trucks traveling under 150 miles from farm to
The Secretary of Transportation may issue single-trip or multi-trip permits for vehicles over state weight limits. One-year blanket permits go only to self-propelled cranes. A single-trip overweight permit costs $30 plus $10 for each 8,000 lb, or portion of it, over legal weight, and lasts 5 days. A load counts as a superload at 15 ft or more wide or high, 120 ft or more long, or over 120,000 lb. Source

Legal size without a permit

8 ft 6 in wide, 13 ft 6 in high, 53 ft semitrailer
Single-trip oversize permit: $30 from DelDOT Hauling Permit Section (Hauling Permits), Dover, DE. It is housed in the Public Safety Building, 303 Transportation Circle. Phone (302) 744-2700. Applica
Single-trip oversize permits last 5 days. Travel is allowed Monday through Sunday, sunrise to sunset, during the permit dates. Loads up to 75 ft long, 12 ft wide, 14 ft 6 in high and 120,000 lb may move 9pm to 5am Monday through Friday with prior approval. Permitted loads may not travel on New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving, the day after Thanksgiving, and Chri Source

Chain law

No chain law for trucks
I found no Delaware law that requires trucks to carry or use chains, and no chain-control signage system. The statute only permits chains of reasonable proportions on any vehicle when needed for safety in snow, ice or similar conditions. The October 15 to April 15 dates in the statute apply to studded tires, not to a chain requirement. I confirmed this on a Justia copy of the Delaware Code, not on Source Non-government source

• Must knowHoliday travel ban for permitted loads

  Oversize and overweight permitted vehicles may not travel on New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving, the day after Thanksgiving, or Christmas. DelDOT may also prohibit movement on other days or hours. The official manual points to a separate Holiday Restrictions list for exact days and times.

  2 Del. Admin. Code 2405, section 4.2.4

Fees and DOT requirements

Delaware charges a flat $55 for a CDL, and a truck's yearly registration is weight-based at $40 plus $18 for each 1,000 lb over 5,000 lb. I found no state operating authority for ordinary for-hire freight trucks: DelDOT's public-carrier certificate covers passenger carriers. Several items could not be confirmed from official sources (see nulls and notes).

Class B CDL

$55 for 8 years (about $6.88 a year)
Effective Oct 10, 2025: CDL new and renewal $55, CDL permit $10, each endorsement $10, each restriction $10. I found no official state fee for the knowledge or skills test; one unofficial site claims $48 for the skills test, which I could not verify. A hazmat endorsement also needs a federal TSA bac Source

Class A CDL

$55 for 8 years (about $6.88 a year)
Same fee schedule as Class B: CDL new and renewal $55, permit $10, endorsements $10 each, restrictions $10 each. CDLs may only be renewed within 30 days before they expire. The test fee is null because no official figure was found. Validity of 8 years is unconfirmed from official sources, as for Cla Source

Registration, 26,001 lb straight truck

$436 a year Source

Registration, 80,000 lb combination

$1,390 a year Source

How registration is figured

For trucks, including diesel trucks, the state code charges $40 per year up to 5,000 lb gross load weight, plus $18 per year for each 1,000 lb or fraction over 5,000 lb. Gross load weight is the chassis, body, equipment and maximum allowable load stated on the application. The fee is not based on ve
These two dollar amounts are my own calculation from the statutory formula, not figures printed in an official table. 26,001 lb is $40 + 22 increments x $18 = $436. 80,000 lb is $40 + 75 increments x $18 = $1,390. The official DMV fee page I found did not show the numbers. Semitrailers are registered at the same rate as trucks, so a tractor-trailer may owe a separate trailer registration. I could Source

Intrastate operating authority

Not required for intrastate carriers.
I found no official statement that explicitly says for-hire freight carriers need no state authority, so treat this as a likely but unconfirmed conclusion. The state's public carrier chapter defines public carriers as railroads, street railways, taxicabs, limousines, motor buses and trolley coaches. That definition comes from a 2011 version of the code. The current official chapter is at https://w Source Non-government source

State DOT requirements

• Must knowUSDOT number for intrastate carriers

  FMCSA lists Delaware among the states that require intrastate commercial motor vehicle registrants to get a USDOT number. I could not find the exact vehicle-weight threshold or application process on an official Delaware page, so confirm with DelDOT before relying on an exemption.

  FMCSA - Do I need a USDOT number?

See all 5 DOT requirements with full access

Fees change; confirm with the linked state source. Compare all states.

New Delaware trucking bills

No new trucking bills found here recently. The agent checks every morning.