(f) The Department may disallow as an employee's representative—

1. (1) An individual whose activities as representative would cause a conflict between the interest or position of the representative and that of the Department,
2. (2) An employee of the Department whose release from his or her official position would give rise to unreasonable costs or whose work assignments preclude his or her release; or
3. (3) An individual whose activities as representative could compromise security.

(g)

1. (1) An employee who wishes the Department to consider any medical condition that may be relevant to the proposed adverse action must provide medical documentation, as that term is defined at 5 CFR 339.104, during the opportunity to reply, whenever possible.
2. (2) When considering an employee's medical documentation, the Department may require or offer a medical examination pursuant to 5 CFR part 339, subpart C.

3. (3) When considering an employee's medical condition, the Department is not required to withdraw or delay a proposed adverse action. However, the Department must—

   1. (i) Allow the employee to provide medical documentation during the opportunity to reply;
   2. (ii) Comply with 29 CFR 1614.203 and relevant Equal Employment Opportunity Commission rules; and
   3. (iii) Comply with 5 CFR 831.1205 when issuing a decision to remove.