From the Tennessee Highway Patrol:

Troopers will be holding checkpoints during March to promote safe driving. Please designate a sober driver logo or take a ride share. Do not get behind the steering wheel and attempt to drive under the influence of alcohol or drugs. Make the safe choice.

Below is a link to a file containing a list of dates and locations:

https://www.tn.gov/content/dam/tn/safety/documents/thp-checkpoints/2025/MARCH.pdf