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of flood waters or increase flows due to a change in drainage or flowage characteristics on the subject site, adjacent properties, or any public or private way. 2.2.2.8 Within the lO-year floodplain, no activity shall impede the landward migration of other resource areas within this area of the floodplain. Relative sea-level rise and the landward migration of resource areas in response to relative sea-level rise shall be incorporated into the design, construction, and location of struchrres and other activities proposed. 2.2.2.9 New struchtres, additions to existing structures, solid foundations, new or proposed expansions of roads, driveways, or parking lots, or impermeable paving of existing ways, new or proposed expansions of coastal engineering struchrres, and new septic systems shall be prohibited Vo.1.thin the V-zone of a beach, drme, barrier beach, or coastal bank where they will result in alteration to vegetative cover, interruptions in the supply of sediment to other wetland resources, and lor changes to the form or volume of a dune or beach. 2.2.2.10 Notwithstanding Sections 2.2.2.6, 2.2.2.7, 2.2.2.8, and 2.2.2.9, the follo-wing activities may be permitted provided the applicant demonstrates that best available measures are used to minimize adverse impacts on all critical characteristics of land subject to coastal storm flowage, and provided that all other performance standards for underlying resource areas are met: beach, drme, and bank nourishment and restoration projects, including fencing and other devices to increase dune development and plantings compatible with nahrral vegetative cover; elevated pedestrian walkways and elevated decks with appropriate height and spacing between planks to allow sufficient sunlight penetration; boat-launching facilities, navigational aids piers, docks, wharves and moorings; improvements necessary to maintain the struchtral integrity I stability of existing coastal engineering structures; projects that will restore, rehabilitate, or create a saltmarsh or 62 freshwater wetlands; projects that are approved, in writing, or conducted by the Division of Marine Fisheries that are specifically intended to increase the productivity of land containing shellfish, including aquaculture, or to maintain or enhance marine fisheries, and projects that are approved, in writing, or conducted by the Division of Fisheries and Wildlife that are specifically intended to enhance or increase wildlife habitat. 2.2.2.11 In order to allow alternative means of reducing flood hazard risks in areas where there are serious concerns about protecting the character of historic villages, the following shall apply in certified Village Growthl Activity centers located in FEMA A -zones for which a Flood Hazard Mitigation Plan has been prepared and adopted by the town and has been found by the Cape Cod Commission to be consistent with state coastal policies and regulations. Notwithstanding Sections 2.1.2.5,2.2.2.2, 2.2.2.3A, and 2.2.2.6, the following standards shall apply to such certified Village Growthl Activity centers located within FEMA A -zones: a. Development and redevelopment shall be subject to the requirements of the adopted Flood Hazard Mitigation Plan and any related policies and regulations. b. Public infrastructure and private sewage treatment facilities (PSTFs) may be constructed in FEMA A-zones (but not within a V- 'or an AO-zone), provided that these facilities are consistent with the Flood Hazard Mitigation Plan and the certified Local Comprehensive Plan; further provided that the infrastruchrre is itself flood-resistant; and provided that such infrastruchtre will not promote new growth and development outside such certified Growthl Activity center. c. All new buildings or substantial improvements to existing struchtres in the FEMA A-zone shall comply with FEMA and State Building Code regulations for elevation and flood proofing.