(1) the term agency means^[2] has the meaning given such term in section 551 (1) of title 5, except that such term does not include the United States Postal Service;

(2) the term facility energy supervisor means the employee with responsibility for the daily operations of a Federal facility, including the management, installation, operation, and maintenance of energy systems in Federal facilities which may include more than one building;

(3) the term trained energy manager means a person who has demonstrated proficiency, or who has completed a course of study in the areas of fundamentals of building energy systems, building energy codes and applicable professional standards, energy accounting and analysis, life-cycle cost methodology, fuel supply and pricing, and instrumentation for energy surveys and audits;

(4) the term Task Force means the Interagency Energy Management Task Force established under section 8257 of this title; and

(5) the term energy conservation measures has the meaning given such term in section 8259 (4) of this title.