Which of the following statements about the Class B Exempt License is true?

The statement regarding the Class B Exempt License that is true pertains to the vision test requirement. When applying for a Class B Exempt License in Texas, candidates must demonstrate suitable vision capabilities, thereby ensuring that drivers can operate commercial vehicles safely. This requirement is essential for upholding road safety standards and protects both the driver and the public.

Other statements do not reflect the characteristics of the Class B Exempt License. While the Class B Exempt License does allow for the operation of specific commercial vehicles, it is not unrestricted. Instead, it has limitations based on the type of vehicle and the specific use case permitted under the license. The validity period is also not stated to be a fixed four years; it may vary based on various factors, including the issuing authority's regulations. Lastly, the Class B Exempt License is not exclusive to federal employees; it is available to others who meet certain criteria, thereby expanding its applicant base beyond just federal personnel.