Form CDL-7 at a glance
What it is: The Texas Commercial Driver License Self-Certification Affidavit (CDL-7): a commercial driver certifies in one of the 4 categories listed to determine if a medical certificate is required.
Where and when to file: Please email, fax, or mail the medical certificate (if applicable) and the Self-Certification affidavit to: Email (pdf format only): CDLMedCert@dps.texas.gov Fax: 512-424-2002 Mail: Texas Department of Public Safety Enforcement & Compliance Service Attention: CDL Section P.O. Box 4087 Austin, Texas 78773 To prevent your commercial driver license from being downgraded, you will need to send a copy of the new DOT medical certificate to the Department within 15 days of the DOT medical certificate issuance date.
A filled-in Form CDL-7 example: a driver self-certifies

How to fill out Form CDL-7, box by box
Last Name, First Name, Middle Name, Maiden Name
I certify my commercial transportation is

You must determine the type of commerce in which you operate and self-certify to one of the following four categories.
Interstate non-excepted: You are an Interstate non-excepted driver and must meet the Federal DOT medical card requirements (e.g. - you are “not excepted”).
Category 1. Non-excepted Interstate: you operate or expect to operate in interstate commerce, are both subject to and meet the qualification requirements under 49 CFR part 391, and are required to obtain a medical examiner's certificate by § 391.45 (CDL-4, CDL-10 box 7, medical certificate is required).
Interstate excepted: You are an Interstate excepted driver and do not have to meet the Federal DOT medical card requirements.
Category 2. Excepted Interstate: you operate or expect to operate in interstate commerce, but engage exclusively in transportation or operations excepted under 49 CFR 390.3(f), 391.2, 391.68 or 398.3 from all or parts of the qualification requirements of 49 CFR part 391 (CDL-10).
Intrastate non-excepted: You are an Intrastate non-excepted driver and are required to meet the DOT medical requirements.
Category 3. Non-Excepted Intrastate: you operate or expect to operate in intrastate commerce, and are subject to the physical qualifications of 49 CFR Part 391 (CDL-5 part b, medical certificate is required).
Intrastate excepted: You are an Intrastate excepted driver and do not have to meet the DOT medical requirements.
Category 4. Excepted Intrastate: you operate or expect to operate in intrastate commerce, and engage exclusively in transportation or operations that exempt you from meeting the medical standards of 49 CFR Part 391 (CDL-5 part a).
If you select category one (1) or three (3), you must present a valid medical certificate.
If you are subject to the Department of Transportation (DOT) medical card requirements, provide a copy of each new DOT medical card to the Department prior to the expiration of the current DOT medical card.
If you are required to maintain a DOT medical certificate, be sure to send a copy of that and any variance you may have along with the Self-Certification affidavit.
More rules for Form CDL-7
Drivers who are required have a medical examiners certificate and fail to maintain a current medical certificate with the Department may lose their CDL.
Sources
[1] Form CDL-7 (00-0112), Texas Commercial Driver License Self-Certification Affidavit (the Official source link on this page).



