Form DL-398 at a glance
What it is: DL-398 is the Military Commercial Driver's License (CDL) Test Waiver Application.
Who signs: Sign the Applicant's Signature line and enter the Date. The Commanding Officer signs the Signature line.
You must be a Pennsylvania resident to apply.
Per 49 CFR 383.77, the Commercial Driver License (CDL) test waiver form may be used by service members who are currently licensed and who are or were employed within the last year in a military position requiring the operation of a military motor vehicle equivalent to a Commercial Motor Vehicle (CMV). This waiver allows a qualified service member to apply for a CDL without knowledge and/or skills testing provided there is sufficient evidence to support the waiver. CDL knowledge (written) test(s) for doubles and triples/school bus cannot be waived. The transfer of School Bus(S) under this Waiver Program is prohibited. For supporting documents needed to support a waiver please visit www.dmv.pa.gov.
A filled-in Form DL-398 example: a service member fills in page 1

How to fill out Form DL-398, box by box
Applicant Information

List all information as it appears on your Pennsylvania Driver's License or Learner's Permit.
Enter the Driver's License Number, Last Name, Jr./Etc, First Name and Middle Name.
Enter the Date of Birth as Month, Day and Year, the Telephone Number (8:00 a.m. to 4:30 p.m.) and the E-mail Address.
Enter the Residence Address (Street), City, State, ZIP Code and County, then the Mailing Address (Street), City, State, ZIP Code and County.
Driver Record Certification

In the Driver Record Certification, enter YES or NO for the 2-year period immediately preceding the date: have you had more than one license (except for a military license), and has your license been suspended, revoked, cancelled or disqualified in this or any state?
For the 2-year period immediately preceding the date, enter YES or NO for each violation you have been convicted of in any type of motor vehicle. Being under the influence of alcohol as prescribed by state law. Being under the influence of a controlled substance. Having an alcohol concentration of 0.04 or greater while operating a CMV. Refusing to take an alcohol test as required by a State jurisdiction under its implied consent laws or regulations as defined in 49 CFR 383.72. Leaving the scene of an accident. Using the vehicle to commit a felony (other than manufacturing, distributing or dispensing a controlled substance). Driving a CMV while your CDL is revoked, suspended, cancelled; or you are disqualified from operating a CMV. Causing a fatality through the negligent operation of a CMV (including motor vehicle manslaughter, homicide by motor vehicle, or negligent homicide). Using the vehicle in the commission of a felony involving manufacturing, distributing, or dispensing a controlled substance.
For the 2-year period immediately preceding the date, enter YES or NO if you have had more than one conviction for any of the following violations in any type of motor vehicle. Speeding of 15 mph or more in excess of the posted speed limit. Driving recklessly, as defined by State or local law or regulation (including offenses of driving a motor vehicle in willful or wanton disregard for the safety of persons or property). Making improper or erratic lane changes. Following the vehicle ahead too closely. Violating State or local law relating to motor vehicle traffic control (other than a parking violation) arising in connection with a fatal accident. Driving a CMV without obtaining a CDL. Driving a CMV without a CDL in the driver's possession. Driving a CMV without the proper class of CDL and/or endorsements for a specific vehicle group being operated or for the passengers or type of cargo being transported. Violating a State or local law or ordinance on motor vehicle traffic control prohibiting texting while driving. Violating a State or local law or ordinance on motor vehicle traffic control restricting or prohibiting the use of a hand held mobile telephone while driving.
For the 2-year period immediately preceding the date, enter YES or NO if you have had any conviction for a violation of military, state or local law relating to motor vehicle traffic control (other than parking violation) arising in connection with any traffic accident and have no record of an accident in which you were at fault.
Certification of Driving Experience

In the Certification of Driving Experience, enter YES or NO: have you been regularly employed or were you regularly employed within the last year in a military position requiring the operation of a military motor vehicle that was representative of a commercial motor vehicle (CMV)?
Enter YES or NO: were you exempted from the CDL licensing requirements for driving a military vehicle on state roads and highways in accordance with 49 CFR §383.3 (c)? Have you operated a military motor vehicle representative of the commercial motor vehicle (CMV) that you operate or expect to operate, for at least the 2 years immediately preceding discharge from the military? Are you an active or reserve member of any branch or unit of the armed forces of the United States or a veteran who received an honorable discharge from any branch or unit of the active or reserve components of the armed forces of the United States?
By signing, you certify under penalty of perjury that the information on this form is true and correct to the best of your knowledge, information and belief.
Sign the Applicant's Signature line and enter the Date.
Commanding Officer's Certification of Commercial Driving Experience

In the Commanding Officer's Certification of Commercial Driving Experience, enter the Commanding Officer's Name (Last, First, Middle), Telephone, Street Address, City, State, ZIP Code and County.
Enter the Service Members Name, the Service Members Date of Qualification (From, To) and the Expiration Date (US Gov't Motor Vehicle Operator Identification Card / License).
Circle the highest class of vehicles the service member has been driving.
Vehicle, transmission and MOS

Enter YES or NO: the vehicle the service member operates is equipped with a full air brake system; the vehicle the service member operates is equipped with an air-over-hydraulic braking system.
Enter YES or NO: the vehicle the service member operated was designed to transport 16 or more passengers including the driver and had a GVWR rating of 26,001 or more; the vehicle the service member operated was designed to transport 16 or more passengers including the driver and had a GVWR rating of less than 26,001.
Enter YES or NO: the service member was required to transport placarded amounts of hazardous material; the vehicle the service member operated was designed to transport liquid or gaseous materials within a tank or tanks of more than 119 gallon capacity and an aggregate capacity of 1000 gallons or more.
Mark AUTOMATIC or MANUAL for the transmission in the vehicle the service member operates.
Select the service member's MOS/MOC. Positions eligible for a waiver of the general knowledge test(s): U.S. Air Force: 2T1 - VEHICLE OPERATOR, 2F0 - FUELER, 3E2 - PAVEMENT AND CONSTRUCTION EQUIPMENT OPERATOR; U.S. Army: 88M - MOTOR TRANSPORT OPERATOR, 14T - PATRIOT LAUNCHING STATION OPERATOR; U.S. Marine Corps: 3531 - MOTOR VEHICLE OPERATOR; U.S. Navy: EO - EQUIPMENT OPERATOR.
Commanding officer certifies the service member

The commanding officer certifies that the service member is/was assigned in a job/assignment requiring the operation of a commercial motor vehicle, that the service member's driving experience has been verified, and that the information provided herein is true and correct to the best of the officer's knowledge.
The commanding officer certifies that they are an officer of the U.S. Armed Forces with the authority to administer oaths and the general powers of a notary public.
The Commanding Officer prints the Commanding Officer's Name/Rank, enters the Date and signs the Signature line, under the Authority of Article 136, Uniform Code of Military Justice or 10 U.S.C. 1044A.
Sources
[1] Form DL-398 (1-23), Military Commercial Driver's License (CDL) Test Waiver Application, Pennsylvania Department of Transportation (the Official source link on this page).
