4 CFR §28.10

1. (a)The GAO shall be responsible for ensuring that employees are routinely advised of their rights to petition the Board and that employees who are the object of an adverse or performance-based action are, at the time of the action, adequately advised of their rights to petition the Board. The notice in adverse or performance-based actions must be accompanied by proof of service.
2. (b)The notice in adverse or performance-based actions shall include:
   1. (1)Time limits for filing a petition with the Board and the address of the Board;
   2. (2)A copy of the Board's regulations; and
   3. (3)Notice of the right to representation, and the availability of a hearing before the Board where factual issues are in dispute.