Form M-233T, officially known as the Annual Toll Road Plaza Application, is a document issued by the Indiana Department of Revenue. This form serves as an application for a specific permit that allows certain commercial vehicles—particularly those exceeding standard weight or dimension limits—to access and travel on the Indiana Toll Road through specific toll plazas. It is designed for transport companies operating oversized vehicles, such as tractor-trailers with extra length or weight configurations (like double or triple trailers), to gain authorization for using designated gates. The permit is gate-specific and generally valid for travel on state highways within a 15-mile radius of the permitted toll gate, excluding interstate highways and certain bridges. The application covers a calendar year, typically starting on January 1 and expiring on December 31, and requires a fee of $20 per gate.
How To File Form M-233T
To file this form, you must complete the document in its entirety, ensuring all vehicle specifications and company details are accurate. Once filled out and signed, the form must be submitted to the Indiana Department of Revenue. While the form itself does not explicitly list a mailing address on the face provided, these applications are typically processed by the Motor Carrier Services Division. You should ensure the $20 fee per gate is included with your submission. It is critical to obtain any necessary pre-certifications from the Indiana Toll Road Authority if you are operating specific vehicle combinations (like triple trailers) before submitting this application.

How To Complete Indiana Form M-233T: Line-By-Line Instructions
Below are the detailed instructions for every section of the form.
Header Information
Starting Date: Enter the year for which you are applying. The default start date is January 1.
Expiration Date: Enter the same year as the start date. The permit expires on December 31 of that year.
Company And Contact Information
Line 1. Name of Transporting Company: Write the full legal name of the business or carrier responsible for the vehicle.
Address: Provide the complete physical street address of the transporting company.
City, State, and ZIP Code: Fill in the city, state, and postal code associated with the company’s address.
Line 2. Contact Person: List the name of the individual the Department should contact regarding this application.
Daytime Telephone Number: Provide a phone number where the contact person can be reached during business hours.
Fax Number: Enter the company’s fax number if available.
Identification Numbers
Line 3. Federal Identification Number: Enter the company’s Federal Employer Identification Number (FEIN).
Line 4. Social Security Number: This field is only for sole proprietors. If you are operating as a sole proprietorship and do not have a FEIN, enter your Social Security Number here.
Vehicle Information
Line 5. Make of Tractor: Specify the manufacturer of the tractor unit (e.g., Peterbilt, Kenworth, Freightliner).
Year: Enter the model year of the tractor.
Line 6. License Plate: Write the license plate number of the vehicle.
State: Indicate the state where the vehicle is registered and the license plate was issued.
Line 7. Full Vehicle Identification Number (VIN): Enter the complete, unique VIN for the specific tractor being permitted.
Gate And Location Details
Line 8. Toll Plaza Mile Markers: Identify the specific toll plaza locations (by mile marker) for which you are requesting access. Remember that the fee applies per gate.
Allowable Weights And Dimensions
This section requires you to check the specific category that applies to your vehicle configuration. Review the definitions below carefully to select the correct option.
Allowable Weights Note: Before selecting a category, verify your vehicle complies with these limits:
- A single axle cannot exceed 22,400 pounds.
- A tandem axle group cannot exceed 18,000 pounds per axle.
- Tire weight cannot exceed 800 pounds per inch of tire width (measured between rim flanges).
Category 1: Check this box if you have a single vehicle (not a combination).
- Width: Must not exceed 12 feet.
- Length: Must not exceed 65 feet.
- Height: Must not exceed 13 feet, 6 inches.
- Maximum Weight: Must not exceed 90,000 pounds (subject to axle limits).
Category 2: Check this box if you have a combination of two vehicles (standard tractor-trailer).
- Trailer Length: Must not exceed 53 feet.
- Width: Must not exceed 12 feet.
- Height: Must not exceed 13 feet, 6 inches.
- Maximum Weight: Must not exceed 90,000 pounds (subject to axle limits).
Category 3: Check this box for a combination of three vehicles (tractor-trailer-trailer).
- Trailer Length: Each trailer must not exceed 48 feet, 6 inches.
- Width: Must not exceed 8 feet, 6 inches.
- Height: Must not exceed 13 feet, 6 inches.
- Maximum Weight: Must not exceed 127,400 pounds (subject to axle limits).
- Requirement: You must contact the Indiana Toll Road Authority for certification before applying for this permit category.
Category 4: Check this box for a combination of four vehicles (tractor and triple trailers).
- Trailer Length: Each trailer must not exceed 28 feet, 6 inches.
- Width: Must not exceed 8 feet, 6 inches.
- Height: Must not exceed 13 feet, 6 inches.
- Maximum Weight: Must not exceed 127,400 pounds (subject to axle limits).
- Restriction: This configuration is strictly limited to the Indiana Toll Road and designated “make-up/break-up” areas near the toll gate. It is not allowed on other highways.
Special Toll Plaza Exceptions
Review these exceptions to ensure your vehicle qualifies for the specific plaza you are applying for:
- Toll Plaza 101 (Bristol): Do not apply for this plaza if your vehicle’s total length is more than 95 feet.
- Toll Plaza 144 (Angola): Access is excluded for State Road 1 and State Road 427.
Signature And Verification
Signature: The applicant or authorized representative must sign here to declare, under penalties of perjury, that the information provided is true, correct, and complete.
Date: Write the current date the application is signed.
Typed or Printed Name: Clearly print the name of the person who signed the application.
Frequently Asked Questions
Q: Does the M-233T permit allow travel on all Indiana highways?
A: No, the permit is generally valid only on state roads within a 15-mile radius of the specific toll gate, excluding interstates and certain bridges.
Q: How much does the M-233T permit cost?
A: The fee is $20 per gate designated on the application.