Title 40, Chapter 5, Section 59
(a) The department, having good cause to believe that a licensed driver is incompetent or otherwise not qualified to be licensed, shall require him to submit to an examination at the nearest license examining facility within ten days of receipt of written notice from the department. Upon the conclusion of such examination, the department shall take action as may be appropriate and may revoke the license of such person or permit him to retain such license or may issue a license subject to restrictions as permitted under Code Section 40-5-30 or restrictions as to the type or class of vehicles that may be driven. Refusal or neglect of the licensee to submit to such examination shall be grounds for revocation of his license.
(b) Notwithstanding the provisions of subsection (a) of this Code
section, the department is authorized to revoke the license of a
driver without a preliminary examination or hearing upon a
recommendation by a court or prosecutor or upon a showing by the
records of the department that the licensee is incapacitated by
reason of disease, mental or physical disability, or addiction to
alcohol or drugs to the extent that such person is incompetent to
operate a motor vehicle.
(c) Any person whose license is revoked pursuant to subsection (b) of this Code section thereafter shall be entitled to a hearing before the department upon receipt by the department of a written request therefor. Such hearing shall be held within 30 days of the receipt of such request. The person may request an opinion of the Driver License Advisory Board as provided for in subsection (c) of Code Section 40-5-34. The department may not grant any exceptions to any regulations issued pursuant to subsection (a) of Code Section 40-5-35. The scope of the hearing shall be to determine if the driver is competent to drive a motor vehicle. The hearing shall be informal and appeal shall be as provided for in Code Section 40-5-66.