Subdivision and development proposals shall be reviewed by the Department of Permitting, Inspections and Enforcement to must address the following requirements: Subdivision proposals and development proposals shall be consistent with the need to minimize flood damage and are subject to all applicable standards in these regulations. Subdivision proposals and development proposals shall have utilities and facilities such as sewer, gas, electrical, and water systems located and constructed to minimize flood damage. Subdivision proposals and development proposals shall have adequate drainage paths provided to reduce exposure to flood hazards and to guide floodwaters around and away from proposed structures. Subdivision proposals and development proposals containing at least five (5) lots or at least five (5) acres, whichever is the lesser, that are wholly or partially in flood hazard areas where base flood elevation data are not provided by the Floodplain Administrator or available from other sources, shall be supported by determinations of base flood elevations as required in Prince George's County Stormwater Management Manual. Proposed Subdivision access roads shall be designed to convey the 1-percent annual chance (100-year) storm with at least one (1) foot of freeboard from the 100-year backwater elevation to the ground elevation at the public right-of-way for closed section roadways, or to the edge of paving for an open section roadways, or to the bottom of a new bridge superstructure. If an existing access roadway is inundated by floodplain (6-inch inundation or more) due to the 1-percent annual chance (100-year) storm, such that the 1 foot of freeboard cannot be achieved, approval is required through a waiver process with the Director or the Director's designee. In special flood hazard areas of non-tidal waters of the State: Subdivision proposals shall be laid out such that proposed building pads are located outside of the special flood hazard area and any portion of platted lots that include land areas that are below the base flood elevation shall be used for other purposes, deed restricted, or otherwise protected to preserve it as open space. In special flood hazard areas of non-tidal waters of the State: Subdivision access roads shall have the driving surface at or above the base flood elevation.