(a) The license officer shall, within ten days after receipt of an application for a license or provisional license as provided for in this article, cause such investigation as he deems necessary to be made to determine that the standards prescribed by this chapter have been met.

(b) The license officer shall issue a license under this article for a period of two years, unless earlier suspended, revoked, or terminated, when he finds that all the requirements of this article have been met.

(c) The license officer shall issue provisional licenses for 30 days for the purpose specified in paragraph (19) of Code Section 31-11-2.

(d) Before issuing a license to a government or governmental agency for a new ambulance service, the license officer shall establish that, due to inadequate private service, the public's convenience and necessity require the proposed ambulance service.