The Administrator, after reviewing the scientific or technical information submitted under the provisions of § 70.3, shall notify the applicant in writing of his/her determination within 60 days after we receive the applicant's scientific or technical information that we have compared either the ground elevations of an entire legally defined parcel of land or the elevation of the lowest adjacent grade to a structure with the elevation of the base flood and that:

(a) The property is within a designated A, A0, A1-30, AE, AH, A99, AR, AR/A1-30, AR/AE, AR/AO, AR/AH, AR/A, V0, V1-30, VE, or V Zone, and will state the basis of such determination; or

(b) The property should not be within a designated A, A0, A1-30, AE, AH, A99, AR, AR/A1-30, AR/AE, AR/AO, AR/AH, AR/A,V0, V1-30, VE, or V Zone and that we will modify the FHBM or FIRM accordingly; or

(c) The property is not within a designated A, A0, A1-30, AE, AH, A99, AR, AR/A1-30, AR/AE, AR/AO, AR/AH, AR/A,V0, V1-30, VE, or V Zone as shown on the FHBM or FIRM and no modification of the FHBM or FIRM is necessary; or

(d) We need an additional 60 days to make a determination.