Key Takeaways

  • Commercial auto insurance covers vehicles used for business purposes with Idaho's 25/50/15 minimum liability still applicable
  • Fleet policies cover multiple vehicles under one policy with efficiency and often premium discounts
  • Motor Carrier Act (MCA) endorsements required for interstate for-hire trucking operations
  • Commercial auto policies use symbols to designate which vehicles are covered under each coverage
  • Idaho commercial vehicle regulations align with FMCSA requirements for interstate commerce
Last updated: January 2026

Idaho Commercial Auto Insurance

Commercial auto insurance is essential for Idaho businesses that use vehicles in their operations. From delivery trucks to service vehicles to long-haul trucking, commercial auto policies provide the specialized coverage businesses need.

Commercial Auto Policy Structure

Business Auto Coverage Form (CA 00 01)

The standard commercial auto form provides:

Covered Autos:

  • Owned vehicles
  • Hired vehicles
  • Non-owned vehicles
  • Newly acquired vehicles

Coverages Available:

  • Liability
  • Medical payments
  • Uninsured/Underinsured motorist
  • Physical damage (collision and comprehensive)
  • Personal injury protection
  • Cargo coverage (endorsement)

Covered Auto Symbols

Commercial auto policies use symbols to designate coverage:

SymbolDescriptionApplies To
1Any "Auto"All autos, including hired and non-owned
2Owned "Autos" OnlyAll autos you own
3Owned Private Passenger "Autos" OnlyOwned cars only
4Owned "Autos" Other Than Private PassengerOwned trucks, vans, etc.
5Owned "Autos" Subject to No-FaultAutos required to have no-fault
6Owned "Autos" Subject to Compulsory UM LawRequired UM coverage autos
7Specifically Described "Autos"Scheduled vehicles only
8Hired "Autos" OnlyRented or leased vehicles
9Non-owned "Autos" OnlyEmployee vehicles on business

Symbol Selection Strategy

Liability Coverage:

  • Symbol 1 (Any Auto) provides broadest protection
  • Covers hired and non-owned automatically
  • Most businesses should use Symbol 1 for liability

Physical Damage:

  • Symbol 7 (Specifically Described) common for collision/comp
  • Only scheduled vehicles covered
  • Must update when adding vehicles

Idaho Commercial Auto Requirements

Minimum Liability Limits

Idaho requires the same minimum liability for commercial vehicles as personal:

CoverageMinimum Limit
Bodily Injury Per Person$25,000
Bodily Injury Per Accident$50,000
Property Damage$15,000

However, most commercial operations carry much higher limits:

  • $500,000 to $1,000,000 combined single limit common
  • Higher limits required for certain operations
  • Contract requirements often exceed state minimums

Commercial Vehicle Classifications

ClassificationExamplesSpecial Requirements
Light CommercialPickup trucks, vansStandard commercial auto
Medium TrucksBox trucks, delivery vansHigher limits common
Heavy TrucksSemi-trucks, dump trucksMCS-90, higher limits
BusesSchool buses, tour busesSpecial endorsements
SpecialtyTow trucks, mobile cranesGarage liability may apply

Fleet Insurance

What Is Fleet Coverage?

Fleet insurance covers multiple vehicles under one policy:

Benefits:

  • Single policy, single renewal
  • Administrative efficiency
  • Often premium discounts
  • Blanket coverage for all vehicles
  • Easier additions/deletions

Fleet Eligibility

Typical requirements:

  • Minimum number of vehicles (often 5-10)
  • Related business operations
  • Common ownership or control
  • Centralized management

Fleet Rating

Experience Rating:

  • Based on fleet's loss history
  • Good experience = lower rates
  • Poor experience = higher rates

Retrospective Rating:

  • Premium adjusted after policy term
  • Based on actual losses
  • Common for large fleets

Motor Carrier Requirements

Interstate Trucking

Idaho-based trucking companies operating interstate must comply with federal regulations:

Federal Motor Carrier Safety Administration (FMCSA):

  • Sets minimum insurance requirements
  • Operating authority requirements
  • Safety regulations and compliance

Minimum Insurance for Motor Carriers

Cargo TypeMinimum Liability
General Freight$750,000
Oil and Hazardous Materials$1,000,000
Hazardous Materials (placardable)$5,000,000
Passengers (small vehicles)$1,500,000
Passengers (large vehicles)$5,000,000

MCS-90 Endorsement

Motor Carrier Act Endorsement:

  • Required for for-hire interstate trucking
  • Ensures minimum liability coverage
  • Protects third parties
  • Makes insurer directly liable up to minimum limits

Key Features:

  • Insurer must pay covered claims up to minimum limits
  • Even if policy excludes the loss
  • Even if policy is voided or cancelled
  • Insurer can seek reimbursement from insured

Cargo Insurance

Motor Truck Cargo Policy:

  • Protects cargo while in transit
  • Required by many shippers
  • Liability to customer for damaged goods
  • May be required for operating authority

Coverage Types:

  • Named perils
  • All-risk (broad form)
  • Refrigeration breakdown
  • Contamination coverage

Commercial Auto Physical Damage

Collision Coverage

Covers damage from collision:

  • With another vehicle
  • With objects (poles, buildings, etc.)
  • Overturns
  • Regardless of fault

Valuation Methods:

  • Actual Cash Value (most common)
  • Stated Amount
  • Replacement Cost (rare for commercial)

Comprehensive Coverage

Covers non-collision losses:

  • Theft
  • Fire
  • Vandalism
  • Weather (hail, flood)
  • Glass breakage
  • Falling objects
  • Animal strikes

Deductible Considerations

Business SizeTypical Deductible Range
Small Business$500 - $1,000
Medium Fleet$1,000 - $2,500
Large Fleet$2,500 - $10,000

Higher deductibles:

  • Lower premiums
  • Retain more risk
  • Require loss fund reserves

Specialized Commercial Auto Coverages

Garage Coverage

For auto dealerships, repair shops, service stations:

Garage Liability:

  • Covers premises and operations
  • Completed operations
  • Products liability
  • Customer vehicles

Garagekeepers Coverage:

  • Damage to customer vehicles in care
  • Direct primary or excess coverage
  • Legal liability vs. direct coverage

Truckers Coverage

Specialized for long-haul trucking:

  • Trailer interchange coverage
  • Non-trucking (bobtail) liability
  • Physical damage while deadheading

Hired and Non-Owned Auto

Hired Auto:

  • Rental vehicles for business
  • Leased vehicles
  • Both liability and physical damage available

Non-Owned Auto:

  • Employee personal vehicles
  • Liability only (employee's policy covers vehicle)
  • Important for businesses with driving employees

Idaho Commercial Auto Considerations

Winter Operations

Cold Weather Challenges:

  • Chain requirements in mountains
  • Increased accident frequency
  • Cargo damage from temperature
  • Equipment breakdown

Agricultural Vehicles

Special Considerations:

  • Seasonal use vehicles
  • Equipment crossing roads
  • Hired labor driving
  • Custom harvesting operations

Logging Operations

Idaho's timber industry requires:

  • Specialized logging trucks
  • Load securement requirements
  • Remote road operations
  • Higher liability limits common

Tourism and Recreation

RV Dealers and Rentals:

  • Garage coverage for dealers
  • Rental policies for rental operations
  • Customer driving coverage

Outfitters and Guides:

  • Passenger auto liability
  • Specialty endorsements
  • Higher limits for passenger operations
Test Your Knowledge

Which commercial auto coverage symbol provides the broadest liability coverage?

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Test Your Knowledge

What is the minimum liability insurance requirement for an interstate motor carrier transporting general freight?

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D
Test Your Knowledge

The MCS-90 endorsement on a commercial trucking policy ensures what?

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D