(a) Within 150 calendar days of the date an application for a new wireless support structure is filed with the local governing authority, unless another date is specified in a written agreement between the local governing authority and the applicant, the local governing authority shall:
(1) Make its final decision to approve or disapprove the application; and
(2) Advise the applicant in writing of its final decision.
(b) Within 30 calendar days of the date an application for a new wireless support structure is filed with the local governing authority, the local governing authority shall determine if it is a complete application and, if it determines the application is not a complete application, notify the applicant in writing of any information required to complete such application. To the extent additional information is required to complete the application, the time required by the applicant to provide such information shall not be counted toward the calendar day review period set forth in subsection (a) of this Code section. Information requested to complete the application may only include the documents, information, and fees specifically enumerated in the local governing authority's existing regulations, ordinances, and forms pertaining to the location, construction, collocation, modification, or operation of wireless facilities.