A.__Long-term erosion;

B.__Short-term erosion resulting from a 100-year storm; or

C.__Flooding from a 100-year storm after a 2-foot rise in sea level.

1-P.__Essential habitat.__"Essential habitat" means an area currently or historically providing physical or biological features essential to the conservation of an endangered or threatened species in the State and which may require special management consideration.

Sec. 3. 38 MRSA §480-B, sub-§§2-E to 2-H are enacted to read:

2-E.__FEMA.__"FEMA" means the__Federal Emergency Management Agency.

2-F.__500-year flood.__"500-year flood" means the estimated probability of a flood event happening in any given year.

2-G.__Footprint.__"Footprint" means the outline that would be created on the ground by extending the exterior walls of a building to the ground surface.__For the purposes of this article, a porch is not considered when determining a building's footprint.

2-H.__Foundation.__"Foundation" means the portion of a structure that transmits the loads of the structure to the ground, including, but not limited to, spread footings, foundation walls, posts, piers, piles, beams, girders, structural slabs, bracings and associated connectors.

Sec. 4. 38 MRSA §480-B, sub-§4-A is enacted to read:

4-A.__Frontal dune.__"Frontal dune" means the most seaward ridge of sand and includes former frontal dune areas modified by development.__When the dune has been altered from a natural condition, the dune position may be inferred from the present beach profile, dune positions along the shore and regional trends in dune width.__The frontal dune may or may not be vegetated with natural flora and may consist in part or in whole of artificial