Illinois SOS Form DSD CDTS 105 Guide

Illinois SOS Form DSD CDTS 105 Guide – Operators of Enhanced Skills Driving Schools (ESDS) in Illinois must comply with strict regulations when adding vehicles to their training fleets. One essential document is the Illinois Secretary of State Form DSD CDTS 105, officially titled “Agreement Between Parties for Use of Vehicles by Enhanced Skills Driving School.” This form allows a licensed ESDS to use a vehicle owned or leased by another party while meeting insurance and registration requirements under Illinois law.

This guide explains the purpose of Form DSD CDTS 105, who needs it, how to complete it, and how it fits into the broader licensing framework for enhanced skills driving schools in Illinois. All information is drawn from official Illinois Secretary of State resources and the Illinois Vehicle Code.

What Is an Enhanced Skills Driving School in Illinois?

Under 625 ILCS 5/6-1001, an Enhanced Skills Driving School is defined as a school that teaches advanced driving skills—such as emergency braking, crash avoidance, and defensive driving techniques—to already licensed drivers for a fee. These schools do not prepare students for Secretary of State driver’s license examinations.

All behind-the-wheel instruction must occur on private property (for example, race-course facilities). Instruction on public roadways is prohibited. The Illinois Secretary of State licenses and regulates these schools and their instructors.

Purpose of Form DSD CDTS 105

Form DSD CDTS 105 serves as the official agreement between a vehicle owner/lessor and an Enhanced Skills Driving School (lessee). It authorizes the school to include the vehicle in its training fleet. The form confirms three key points:

The vehicle identified by year, make, and Vehicle Identification Number (VIN) is the subject of an agreement between the owner and the school.
The vehicle is owned or registered by the named party and a Certificate of Title has been issued in the owner’s name.
The Secretary of State is authorized to verify registration of the vehicle in the owner’s name.

The owner also affirms under penalty of perjury that the school has permission to use the vehicle and that the school will insure the vehicle for student instruction. Both the owner/lessor and a school official must sign the form, and the signatures must be notarized.

The current version of the form (DSD CDTS 105.1) was printed by authority of the State of Illinois in September 2021 and remains the official document available from the Secretary of State.

When Is Form DSD CDTS 105 Required?

Illinois administrative rules (Title 92, Part 1065) require that no motor vehicle may be used for enhanced skills training unless it is owned or leased in the name of the licensed ESDS or school owner. When the vehicle is leased or otherwise made available by a third party, a properly completed lease or agreement—Form DSD CDTS 105—must be submitted to the Department.

The form is typically required when:

An ESDS adds a vehicle that is not titled in the school’s name to its fleet.
The school updates its vehicle fleet schedule (Schedule II — Safety Inspection).
The school applies for or renews its main or branch license and lists additional vehicles.

Vehicles must also appear on the school’s insurance certificate (Form DSD CDTS 104) and pass safety inspection requirements before an insurance certificate sticker is issued by the Secretary of State.

Insurance Requirements for ESDS Vehicles

Illinois law sets higher minimum liability limits for Enhanced Skills Driving Schools than for standard commercial driver training schools. Under 625 ILCS 5/6-1002, every vehicle used in instruction must carry:

$500,000 for bodily injury to or death of one person in any one crash
$1,000,000 for bodily injury to or death of two or more persons in any one crash
$100,000 for damage to property of others in any one crash

Evidence of coverage must be filed with the Secretary of State on Form DSD CDTS 104. The policy must include a provision that it cannot be canceled without 10 days’ prior written notice to the Secretary of State. Form DSD CDTS 105 specifically requires the school to insure the vehicle for instructional use.

How to Complete Form DSD CDTS 105?

The form is a single-page fillable PDF. Accurate completion is essential for acceptance by the Commercial Driver Training School Section.

Vehicle Information — Enter the vehicle year, make, and full Vehicle Identification Number (VIN).
Owner/Lessor Information — Provide the owner’s or lessor’s full name, driver’s license number, street address, city, state, and ZIP code.
School/Lessee Information — Enter the exact name of the Enhanced Skills Driving School as it appears on its license, along with the school’s street address, city, state, and ZIP code.
Certification Statements — Read the three certification bullets carefully. By signing, both parties affirm these statements.
Owner Affirmation — The owner prints their name in the affirmation paragraph and signs under penalty of perjury pursuant to Section 1-109 of the Illinois Code of Civil Procedure.
Signatures and Date — Both the owner/lessor and a school official sign and date the form.
Notarization — The form must be subscribed and sworn to before a notary public. The notary completes the acknowledgment, applies their seal, signs, and provides their address.

Submit the completed, notarized form along with the school’s vehicle fleet schedule and insurance certificate to the Commercial Driver Training School Section at:

Commercial Driver Training School Section
1800 W. Hawthorne Lane
West Chicago, IL 60185
Phone: 630-520-9310

Where to Download Form DSD CDTS 105?

The official Form DSD CDTS 105 is available directly from the Illinois Secretary of State website. Download the current PDF here:

Download Illinois SOS Form DSD CDTS 105 (PDF)

Always obtain forms from the official ilsos.gov domain to ensure you have the most recent version. Forms should be downloaded and completed using Adobe Acrobat Reader for best results with fillable fields.

Additional Resources for Illinois Enhanced Skills Driving Schools

Official Enhanced Skills Driver Training Schools page — Illinois Secretary of State
Illinois Administrative Code Title 92 Part 1065 — Full regulations governing ESDS
Complete list of Illinois SOS publications and forms

Conclusion

Form DSD CDTS 105 is a critical compliance document for any Enhanced Skills Driving School in Illinois that uses vehicles not titled in the school’s name. Proper completion, notarization, and submission—together with the required insurance certificate and fleet schedule—ensure the vehicle can legally be used for advanced driver training on private property. School operators should maintain current copies of all required forms and consult the Commercial Driver Training School Section with any questions about vehicle agreements or licensing requirements.

For the most accurate and up-to-date information, always refer to the official Illinois Secretary of State website and the Illinois Vehicle Code.