5 C.F.R. § 630.1208

(a) An agency may require that a request for leave under § 630.1203(a) (3) or (4) be supported by written medical certification issued by the health care provider of the employee or the health care provider of the spouse, son, daughter, or parent of the employee, as appropriate. An agency may waive the requirement for an initial medical certificate in a subsequent 12-month period if the leave under § 630.1203(a) (3) or (4) is for the same chronic or continuing condition.

(b) The written medical certification shall include—

(1) The date the serious health condition commenced;

(2) The probable duration of the serious health condition or specify that the serious health condition is a chronic or continuing condition with an unknown duration and whether the patient is presently incapacitated and the likely duration and frequency of episodes of incapacity;

(3) The appropriate medical facts within the knowledge of the health care provider regarding the serious health condition, including a general statement as to the incapacitation, examination, or treatment that may be required by a health care provider;

(4) For the purpose of leave taken under § 630.1203(a)(3) of this part—

(i) A statement from the health care provider that the spouse, son, daughter, or parent of the employee requires psychological comfort and/or physical care; needs assistance for basic medical, hygienic, nutritional, safety, or transportation needs or in making arrangements to meet such needs; and would benefit from the employee's care or presence; and

(ii) A statement from the employee on the care he or she will provide and an estimate of the amount of time needed to care for his or her spouse, son, daughter, or parent;

(5) For the purpose of leave taken under § 630.1203(a)(4), a statement that the employee is unable to perform one or more of the essential functions of his or her position or requires medical treatment for a serious health condition, based on written information provided by the agency on the essential functions of the employee's position or, if not provided, discussion with the employee about the essential functions of his or her position; and

(6) In the case of certification for intermittent leave or leave on a reduced leave schedule under § 630.1203(a) (3) or (4) for planned medical treatment, the dates (actual or estimates) on which such treatment is expected to be given, the duration of such treatment, and the period of recovery, if any, or specify that the serious health condition is a chronic or continuing condition with an unknown duration and whether the patient is presently incapacitated and the likely duration and frequency of episodes of incapacity.

(c) The information on the medical certification shall relate only to the serious health condition for which the current need for family and medical leave exists. The agency may not require any personal or confidential information in the written medical certification other than that required by paragraph (b) of this section. If an employee submits a completed medical certification signed by the health care provider, the agency may not request new information from the health care provider. However, a health care provider representing the agency, including a health care provider employed by the agency or under administrative oversight of the agency, may contact the health care provider who completed the medical certification, with the employee's permission, for purposes of clarifying the medical certification.

(d) If the agency doubts the validity of the original certification provided under paragraph (a) of this section, the agency may require, at the agency's expense, that the employee obtain the opinion of a second health care provider designated or approved by the agency concerning the information certified under paragraph (b) of this section. Any health care provider designated or approved by the agency shall not be employed by the agency or be under the administrative oversight of the agency on a regular basis unless the agency is located in an area where access to health care is extremely limited—e.g., a rural area or an overseas location where no more than one or two health care providers practice in the relevant specialty, or the only health care providers available are employed by the agency.

(e) If the opinion of the second health care provider differs from the original certification provided under paragraph (a) of this section, the agency may require, at the agency's expense, that the employee obtain the opinion of a third health care provider designated or approved jointly by the agency and the employee concerning the information certified under paragraph (b) of this section. The opinion of the third health care provider shall be binding on the agency and the employee.

(f) To remain entitled to family and medical leave under § 630.1203(a) (3) or (4) of this part, an employee or the employee's spouse, son, daughter, or parent must comply with any requirement from an agency that he or she submit to examination (though not treatment) to obtain a second or third medical certification from a health care provider other than the individual's health care provider.

(g) If the employee is unable to provide the requested medical certification before leave begins, or if the agency questions the validity of the original certification provided by the employee and the medical treatment requires the leave to begin, the agency shall grant provisional leave pending final written medical certification.

(h) An employee must provide the written medical certification required by paragraphs (a), (d), (e), and (g) of this section, signed by the health care provider, no later than 15 calendar days after the date the agency requests such medical certification. If it is not practicable under the particular circumstances to provide the requested medical certification no later than 15 calendar days after the date requested by the agency despite the employee's diligent, good faith efforts, the employee must provide the medical certification within a reasonable period of time under the circumstances involved, but no later than 30 calendar days after the date the agency requests such medical certification.

(i) If, after the leave has commenced, the employee fails to provide the requested medical certification, the agency may—

(1) Charge the employee as absent without leave (AWOL); or

(2) Allow the employee to request that the provisional leave be charged as leave without pay or charged to the employee's annual and/or sick leave account, as appropriate.

(j) At its own expense, an agency may require subsequent medical recertification on a periodic basis, but not more than once every 30 calendar days, for leave taken for purposes relating to pregnancy, chronic conditions, or long-term conditions, as these terms are used in the definition of serious health condition in § 630.1202. For leave taken for all other serious health conditions and including leave taken on an intermittent or reduced leave schedule, if the health care provider has specified on the medical certification a minimum duration of the period of incapacity, the agency may not request recertification until that period has passed. An agency may require subsequent medical recertification more frequently than every 30 calendar days, or more frequently than the minimum duration of the period of incapacity specified on the medical certification, if the employee requests that the original leave period be extended, the circumstances described in the original medical certification have changed significantly, or the agency receives information that casts doubt upon the continuing validity of the medical certification.

(k) To ensure the security and confidentiality of any written medical certification under § 630.1208 or 630.1210(h) of this part, the medical certification is subject to the provisions for safeguarding information about individuals under subpart A of part 293 of this chapter.