Who Needs a KYU Permit? Weight Thresholds and Requirements

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Kentucky’s 60,000 Pound Threshold

Kentucky requires a KYU permit (Weight Distance Tax registration) for motor carriers whose vehicles are registered at 60,000 pounds or more gross vehicle weight (GVW) or gross combination weight (GCW). If your vehicle or combination meets or exceeds this weight and you operate on Kentucky highways, you generally need a KYU account number.

Who Typically Needs a KYU Number?

  • Interstate carriers – If you run through or into Kentucky with vehicles at or above 60,000 lbs, you typically need a KYU account.
  • Intrastate carriers – Kentucky-based operations with qualifying vehicles must also register and file.
  • Owner-operators and fleets – Both are subject to the same weight-based rules.

Even if you only occasionally enter Kentucky, crossing the state with a vehicle that meets the weight threshold usually triggers the need for either a temporary KYU permit or full KYU registration, depending on how often you run in the state.

What You Need to Register

To complete Kentucky Weight Distance registration, carriers typically must provide:

  • Legal business name and contact information
  • US DOT number and federal tax ID (EIN)
  • Vehicle and weight information
  • Other details as required by the state

Once registered, you will receive your KYU number and must file quarterly reports and pay the weight distance tax based on miles traveled in Kentucky.

Not Sure If You Qualify?

If your vehicle is registered under 60,000 pounds, the Weight Distance Tax typically does not apply. When in doubt, check your registration documents for the registered weight, or contact a compliance specialist who can help you determine whether you need a KYU permit and what type—temporary or full registration.