In this chapter:
(1) Excess property.—
(2) Postal property.—
The term “postal property” means any property owned or leased by the Postal Service.
(3) Underutilized property.—The term “underutilized property” means a portion or the entirety of any real property that is postal property, including any improvements, that is used—
irregularly or intermittently by the Postal Service for program purposes of the Postal Service; or