(a) Prior to filing of the Final Map, the subdivider's engineer shall submit any required improvement plans to the City Engineer for approval.
(b) Improvement plans shall be prepared under the direction of a registered civil engineer.
(c) Improvement plans shall conform to the Subdivision Regulations regarding format, size and contents.
(d) Any specifications supplementing the Standard Specifications shall be considered a part of the improvement plans.
(e) Within 14 days after submittal by the subdivider's engineer the City Engineer shall return to the subdivider's engineer a set of the submittal improvement plans noting thereon his approval, disapproval or conditional approval of said plans. This time limit may be extended by mutual agreement.