They're not referring to a drivers license here, which would be eminently sane. They're referring to taxi licenses, which are artificially restricted.

40-1-193. (a) No transportation referral service provider subject to this part shall contract with, utilize, or refer individuals or entities to limousine carriers or taxi services that are not properly licensed by the state or a political subdivision of this state, are not properly insured under state or local law, or which use drivers that are not properly licensed under state and local law to carry passengers for hire.