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The Tennessee Treasury Department is responsible for the management of the DUI Monitoring Fund, which provides reimbursement for costs associated with monitoring devices and services for persons convicted of DUI who must have such devices while on a restricted license, probation or parole. The companies installing and monitoring functioning interlock ignition devices, transdermal monitoring devices and other forms of alcohol and drug monitoring devices will receive reimbursement for services for indigent participants (for the portion the indigent defendant cannot pay) so long as the provider submits the appropriate documentation for consideration.

If you are a provider and need more information about the services covered and the reimbursement process with the Treasury Department, please see the procedures document below.

If you are a participant or potential participant and would like more information about the interlock devices, please consult the Department of Safety website. This site includes rules about the process and provides a listing of certified interlock device providers.

Other Information/Links:

Public Chapter 0653

Public Chapter 0888

Public Chapter 0993

Public Chapter 1030








The Tennessee Department of Treasury (“Department”) administers the DUI Monitoring Fund (“DMF”), which was formerly known as the Interlock Assistance Fund. This document sets out the Department’s procedures for the administration of the DMF, which provides reimbursement to individuals or entities engaged in the business of manufacturing, selling, leasing, servicing or monitoring alcohol or drug monitoring devices (“Provider”). All Providers submitting interlock claims for reimbursement must be listed on the Department of Safety’s approved Provider list. Providers shall charge reasonable and customary fees in accordance with applicable law and Department of Safety Rules. The alcohol or drug monitoring devices that are eligible for reimbursement from the DMF include, but are not limited to, ignition interlock devices; transdermal devices; electronic monitoring devices with random alcohol or drug testing; and global positioning monitoring system devices (“Devices”).

A Provider may submit a claim for reimbursement from the DMF for:

(1) the costs associated with the lease, purchase, installation, removal and maintenance of ignition interlock devices, or with any other cost or fee associated with a functioning ignition interlock device; and
(2) the costs associated with the use of a transdermal monitoring device or other alternative alcohol or drug monitoring devices.

Reimbursement from the DMF is allowed for:

(1) the costs associated with installation, maintenance and removal of an ignition interlock device for DUI offenses occurring on or after January 1, 2011; and
(2) the costs associated with the use of a transdermal monitoring device or other alternative alcohol or drug monitoring devices that have been ordered by a Court on or after July 1, 2016.

The Department shall pay no more than two hundred dollars ($200.00) per month from the DMF for each Device ordered for each individual (“Participant”) who has been ordered by a Court pursuant to applicable law to use a Device.


Either before submitting a request for reimbursement from the DMF or accompanying a request that is submitted, a Provider shall provide the Department with a signed or certified Court Order indicating that the installation of the Device has been ordered by the Court (which may take the form of an Order for a Restricted License for an ignition interlock device); an Affidavit of Indigency or other proof of an indigency determination by the Court; and, any other documentation requested by the Department.

A request for reimbursement from the DMF shall be accompanied by an invoice and documentation from the Provider showing proof of the installation of the Device. The Provider shall submit a separate invoice for each Participant. The Provider’s monthly itemized invoice shall contain charges for services provided in the month prior to the invoice date.

The monthly itemized invoice for each Device which shall include, but not be limited to:

• Participant’s name;

• Participant’s date of birth as the unique identifier;

• Service dates;

• Description of the services rendered by the Provider;

• Type of Device;

• Invoice number; and

• Service charges in line-item form indicating the Court-ordered portion the Participant shall pay and the portion the DMF shall pay.

The failure to submit a legible or complete copy of any of the required information may result in a denial or delay of payment to the Provider.

Claims for reimbursement shall be submitted by U.S. mail, facsimile or e-mail.

Once the Department receives the information to process a request for reimbursement from the DMF, the Department will make every effort to approve or deny a request within ninety (90) days after all of the required information is received by the Department. The Department will notify the Provider in writing of any denial for reimbursement. If a claim for reimbursement is denied by the Department, the Provider may request that the claim be reconsidered by submitting additional information or documentation not previously submitted with the original invoice in support of the claim with a new itemized invoice.


Applicable law provides that the authorized removal of a functioning interlock device that is required by a Court Order or by the Department of Safety shall be based on the Participant’s compliance with the Court Order and the provisions contained in applicable law (Tenn. Code Ann. §55-10-425(d)(1)). Upon completion of the period in which a Participant is required to use an ignition interlock device, if a Participant has complied with the provisions contained in Tenn. Code Ann. §55-10-425(d)(1), the Provider shall certify the Participant’s compliance with the provisions in applicable law during the period of time in which the ignition interlock device is required to remain on the Participant’s vehicle. Should a Provider determine that a Participant is compliant, then the Provider shall provide the Participant with a certificate of compliance, and at the same time, shall provide a copy of the certificate of compliance to the Department. Should the Provider’s certificate of compliance result in the removal of the ignition interlock device, the Provider shall immediately notify the Department of the removal of the device along with an invoice of the removal charges. If a Provider determines that a Participant has not been in compliance with the provisions contained in Tenn. Code Ann. §55-10-425(d)(1), the Provider shall notify the Participant that the Provider’s records indicate noncompliance. The Provider shall also notify the Department if a Participant has been determined to be noncompliant and if the Participant’s noncompliance has resulted in an extension of the ignition interlock requirement. The Department may verify the Participant’s compliance or noncompliance with the Department of Safety.


Approved reimbursement invoices are paid to the Provider through the State’s Edison System. The Provider shall complete the required State of Tennessee Edison forms for a state vendor, the W-9 tax identification form and ACH forms authorizing credit to a designated bank account. Providers may obtain these forms from the Division of Claims Administration.

Each Provider shall supply the Department any and all requested documentation the Department deems necessary to appropriately process a claim for reimbursement and to comply with applicable laws and rules.

Providers with questions regarding reimbursement or DUI Monitoring Fund may contact the Department of Treasury at:

Tennessee Department of Treasury
Division of Claims Administration
DUI Monitoring Fund
502 Deaderick Street
Nashville, TN 37243-0202


(615) 401-6803

(615) 741-2734

For additional information, please the Division’s website at: