If the application is one which requires Planning Board review, the application shall be scheduled for the Planning Board agenda, subject to the provisions of all of the applicable City ordinances, rules and regulations, and subject to the Planning Board's rules and regulations for placing applications upon the Planning Board's agenda. Following a review of the submission made by the applicant in support of his application, the Planning Board may, before undertaking further review, request further submissions as it deems necessary, or the Planning Board may begin the formal review process and, if and when necessary for completion of its review, request further information or submissions from the applicant. When the Planning Board, in either of such circumstances, requests of the applicant additional information not then before the Planning Board, such submissions shall be made within 60 days from the date of the request, and the matter shall be tabled to a date certain for further proceedings before the Planning Board. The failure to provide requested information as and when requested may result in the denial of the application by the Planning Board. After all requested information has been submitted by the applicant, and the Planning Board determines through a formal finding that all requested information has been provided, the Planning Board shall, within 30 days of that finding, either approve, approve with conditions, or disapprove the application. Any conditions of approval shall be those necessary to ensure that the provisions of this chapter are followed. The failure to approve or disapprove an application within the thirty-day period shall constitute a denial of the application, unless the applicant and the Planning Board agree to the extension to a date certain, not more than 90 days after such thirty-day period. Any application remaining pending for any reason without final action more than three months after its date of filing with the City shall be deemed denied unless the Planning Board, by official vote at a Planning Board meeting, upon the written request of the applicant, affirmatively extends such time period for an additional period of time of not more than 90 days. The Planning Board shall make written findings as to why the matter should remain pending, and further provide that the extension shall be to a date certain after which the application shall be denied.