Attention: TDR Forum Junkies 
Posted this in "other" too.
What I found in Texas.
Texas Commercial Driver License Information
All drivers who operate a commercial motor vehicle will be required to have a CDL. To determine the class of CDL, refer to section "Different Classes of CDL’s".
The law does provide provisions for some exemptions, using the CDL 2, Exemption form required. If the driver meets one or more of the criteria listed on the following page, he/she will not be required to have a CDL. However, the driver will be required to have a Class A, B, or C Non-CDL License.
Exemptions:
A vehicle that is controlled and operated by a farmer; and used to transport agricultural products, farm machinery, or farm supplies to or from a farm; and not used in the operations of a common or contract motor carrier; and used within 150 air miles of the person’s farm.
A Fire-fighting or emergency vehicle necessary to the preservation of life or property or the execution of emergency governmental functions, whether operated by an employee of a political subdivision or by a volunteer fire-fighter.
A recreational vehicle that is driven for personal use.
A military vehicle, when operated for military purposes by military personnel.
A vehicle that is owned, leased, or controlled by an air carrier, as defined by Texas Trans. Code (TRC) section 21. 155.
A vehicle used exclusively to transport cotton modules or cotton burrs.
What I found in Texas.
Texas Commercial Driver License Information
All drivers who operate a commercial motor vehicle will be required to have a CDL. To determine the class of CDL, refer to section "Different Classes of CDL’s".
The law does provide provisions for some exemptions, using the CDL 2, Exemption form required. If the driver meets one or more of the criteria listed on the following page, he/she will not be required to have a CDL. However, the driver will be required to have a Class A, B, or C Non-CDL License.
Exemptions:
A vehicle that is controlled and operated by a farmer; and used to transport agricultural products, farm machinery, or farm supplies to or from a farm; and not used in the operations of a common or contract motor carrier; and used within 150 air miles of the person’s farm.
A Fire-fighting or emergency vehicle necessary to the preservation of life or property or the execution of emergency governmental functions, whether operated by an employee of a political subdivision or by a volunteer fire-fighter.
A recreational vehicle that is driven for personal use.
A military vehicle, when operated for military purposes by military personnel.
A vehicle that is owned, leased, or controlled by an air carrier, as defined by Texas Trans. Code (TRC) section 21. 155.
A vehicle used exclusively to transport cotton modules or cotton burrs.
