Using the source information under Regulation .03 of this chapter, the Department and the Commission shall digitize the shoreline and the landward boundary of a tidal wetland. The Department and the Commission shall determine the location of the shoreline by remote sensing and an evaluation of: The location of vertical shoreline structures; The location of water at the time of image capture; An estimate of the high tide limit, based on photo interpretation and collateral data; and On sandy beaches, the location of a debris line or the wettest land. Except for a structural shoreline stabilization measure that is located offshore, the Department and the Commission shall map the shoreline: At the landward edge of a bulkhead; At the midpoint between the waterline and the upland edge of a revetment; Around the landward edge of a man-made groin or jetty that is at least 30 feet in width; and Along the shoreline when a man-made groin or jetty is less than 30 feet in width. Except for a living shoreline or a mudflat, the Department and the Commission shall map the following land features as upland: An upland island surrounded by open water; An upland area surrounded by a tidal wetland if the upland area: Was mapped as upland on the 1972 tidal wetlands maps and is at least one acre in size; or Except for a duckblind or a water-dependent facility or activity under COMAR 27.01.03, is developed with a legally authorized improvement; and A dredged material containment facility surrounded by open water that is part of a State-sponsored restoration project with conservation and habitat protection as essential elements of its operation. A local jurisdiction may not construe the mapping of an area as a wetland or an upland to affect the allowable density or the number of development rights of that newly mapped area as part of a map update, except in accordance with written requirements and procedures in a local jurisdiction’s Critical Area program. A local jurisdiction may include within the Critical Area land located more than 1,000 feet from tidal waters or tidal wetlands if the newly included area is: Completely surrounded by Critical Area land and is: Up to one acre in size and adjoins an intensely developed area or a limited development area, by which the designation of the newly included area becomes an intensely developed area or a limited development area; Up to two acres in size and adjoins a resource conservation area, by which the designation of the newly included area becomes a resource conservation area; or Greater than the acreage limits in §F(1)(a) and (b) of this regulation if: A local jurisdiction proposes alternative mapping standards; and The alternative standards are approved by the Commission; or An environmentally sensitive area contiguous to the Critical Area that is approved by the Commission. The Department and the Commission, in collaboration with a local jurisdiction, shall maintain the Critical Area layer of the Statewide Base Map. Each map of the Critical Area layer of the Statewide Base Map shall include: A State-determined shoreline; A State-determined landward boundary of tidal wetlands; A digitally generated, georeferenced 1,000-foot Critical Area boundary; and Land newly included within the Critical Area under §F of this regulation.