An individual; a labor organization; two or more labor organizations acting as a joint-petitioner; an individual acting on behalf of any employee(s); an agency or activity; or a combination of the above may file a representation petition. But,

1. (a) Only a labor organization may file a petition under § 2422.1(a)(1);
2. (b) Only an individual may file a petition under § 2422.1(a)(2); and
3. (c) Only an agency or a labor organization may file a petition under § 2422.1(b) or (c).