Form MCS-21 at a glance
What it is: Form MCS-21, Release of CDL Holder's Reported Positive Alcohol or Controlled Substance Test Results: use this form to obtain the CDL holder's reported positive alcohol or controlled substance test results information.
Who signs: Complete the form in full and include the driver's original signature. (Electronic signatures will not be accepted)
This form should ONLY be used if you wish to inquire whether or not a prospective driver (CDL Holder) has had a positive alcohol or controlled substance test result reported to the Texas Department of Public Safety in compliance with state law.
A filled-in Form MCS-21 example: a CDL holder authorizes release to a motor carrier
How to fill out Form MCS-21, box by box
Requesting results on self
Check here if CDL Holder is requesting results on self.
CDL Holder
Print Name of CDL Holder and Phone Number; Print full Address, City, State and Zip Code of CDL Holder and Social Security #; Driver License Number of CDL Holder, State and Date of Birth.
Motor Carrier
Authorize release of any and all of CDL holder's reported positive alcohol or controlled substance test results reported under Texas state law to the motor carrier: Print Motor Carrier's Name and Phone Number, and Print full Address, City, State and Zip Code of Motor Carrier.
Signature of Driver and Date
Sign on the Signature of Driver line and fill in the Date.
Common questions about Form MCS-21
Does it need a notary?
If you wish to request and receive this information by electronic mail, submit a completed and notarized Electronic Mail Verification Form (MCS-32), available at http://www.dps.texas.gov.htm.
Who signs it?
Complete the form in full and include the driver's original signature. (Electronic signatures will not be accepted)
Where do I file it?
Deliver, mail, Email or FAX the completed form to: Texas Department of Public Safety Motor Carrier Bureau, MSC #0521 6200 Guadalupe, Building P Austin, Texas 78752-4019 / Facsimile: 512-424-5310 Email: MCB.VPR@dps.texas.gov
When is this form not the right one?
This form is not required for reporting a positive alcohol or controlled substance test.
Sources
[1] Form MCS-21 (Rev 10/17), Release of CDL Holder's Reported Positive Alcohol or Controlled Substance Test Results, Texas Department of Public Safety (the Official source link on this page).