(a) The regulations in this subpart are applicable to the following proposed postal facility actions located in a floodplain:(1) New construction, owned or leased; or(2) Construction projects at an existing facility that would increase the amount of impervious surface at the site.(b) These procedures are not applicable to the following postal facility actions: (1) Those actions identified in paragraphs (a)(1) and (a)(2) of this section, when the entire preferred area, or all contending sites, for such actions lies within a floodplain;(2) Incidental construction, such as construction of athletic fields, recreational facilities, sidewalks, and other minor alteration projects;(3) Construction at existing postal facilities pursuant to the Architectural Barriers Act or postal accessibility standards;(4) Any facility construction project deemed necessary to comply with federal, state, or local health, sanitary, or safety code standards to ensure safe working conditions;(5) Construction of facilities that are functionally dependent on water, such as piers, docks, or boat ramps;(6) Maintenance, repair, or renovation of existing facilities; or(7) Leasing or other use of space for not more than one year.