5 C.F.R. § 630.403 Supporting evidence.
Title 5 - Administrative Personnel
(a) An agency may grant sick leave only when supported by administratively acceptable evidence. Regardless of the duration of the absence, an agency may consider an employee's certification as to the reason for his or her absence as administratively acceptable evidence. For an absence in excess of 3 workdays, or for a lesser period when determined necessary, the agency may also require a medical certificate or other administratively acceptable evidence as to the reason for an absence for any of the purposes described in §630.401(a). (b) An agency may establish a uniformly applied policy that requires employees to provide administratively acceptable evidence or medical certification for a request for sick leave within a specified time period. An employee who does not provide the required evidence or medical certification within the specified time period is not entitled to sick leave. (c) An agency may require an employee requesting sick leave to care for a family member under §630.401(a)(3)(ii) to provide an additional written statement from the health care provider concerning the family member's need for psychological comfort and/or physical care. The statement must certify that— (1) The family member requires psychological comfort and/or physical care; (2) The family member would benefit from the employee's care or presence; and (3) The employee is needed to care for the family member for a specified period of time. [65 FR 37240, June 13, 2000]
Title 5: Administrative Personnel
PART 630—ABSENCE AND LEAVE
Subpart D—Sick Leave
§ 630.403 Supporting evidence.