Code of Federal Regulations Title 39. Postal Service § 39.776.8 Scope

(1) New construction, owned or leased;  or

(2) Construction projects at an existing facility that would alter the external configuration of the facility.

(1) Construction of foot and bike trails, or boardwalks, including signs, the primary purposes of which are public education, interpretation, or enjoyment of wetland resources;

(2) Construction at existing postal facilities pursuant to the Architectural Barriers Act or postal accessibility standards;

(3) Any facility construction project deemed necessary to comply with federal, state, or local health, sanitary, or safety code standards to ensure safe working conditions;

(4) Construction of facilities that are functionally dependent on water, such as piers, docks, or boat ramps;  or

(5) Maintenance, repair, or renovation of existing facilities.