5 CFR §734.409

1. (a)Serve as an officer of a political party, a member of a national, State, or local committee of a political party, an officer or member of a committee of a partisan political group, or be a candidate for any of these positions;
2. (b)Organize or reorganize a political party organization or partisan political group;
3. (c)Serve as a delegate, alternate, or proxy to a political party convention; and
4. (d)Address a convention, caucus, rally, or similar gathering of a political party or partisan political group in support of or in opposition to a candidate for partisan political office or political party office, if such address is done in concert with such a candidate, political party, or partisan political group.