https://www.dmv.org/tx-texas/teen-drivers.php
14 years old: Begin Drivers Ed (Please Note: just because you start Drivers Ed, you still can't apply for a Learners Permit until you're 15 years old).
15 years old with Drivers Ed: Minor Restricted Driver License (MRDL), also known as a hardship license.
15 years old and completed the classroom hours of Driver's Ed: Learners Permit.
16 years old: Provisional license.
Under 18 years old: Eligible to get a Provisional License AFTER maintaining a valid learner's license for 6 months.
18 years old: Eligible to apply for a Class A, B, C or M License (not a CDL License).