act the Board’s regional office. In its comment, the United Stated Postal Service points out that it has different statutory rules

r a Delegate or Resident Commissioner to, the Congress; (2) an employee of either House of Congress; or the President, Vice President, an employee of the United States Postal Service or the Postal Regulatory Commission, or any other executive branch employee (as such term is defined under section 2105 of title 5, United States Cod