(a) The Tentative Map shall be prepared by a registered civil engineer or a registered land-surveyor.
(b) the Tentative Map shall contain the following data, in sufficient detail to enable the Director and other agencies to evaluate the proposed subdivision:
(1) Title;
(2) Explanatory Notes; and
(3) Topographic Map of the proposed subdivision and adjacent lands showing the existing conditions and the proposed changes.
(c) The Tentative Map shall conform to the Subdivision Regulations regarding detailed format and contents.