Code of Federal Regulations Title 5. Administrative Personnel § 5.734.412 Participation in elections;  prohibitions

(a) Be a candidate for partisan political office;

(b) Act as recorder, watcher, challenger, or similar officer at polling places in concert with a political party, partisan political group, or a candidate for partisan political office;

(c) Drive voters to polling places in concert with a political party, partisan political group, or a candidate for partisan political office.