5 U.S.C. § 6381

For the purpose of this subchapter— (1) the term “employee” means any individual who— (A) is an “employee”, as defined by section 6301(2), including any individual employed in a position referred to in clause (ix) of section 6301(2), but excluding any individual employed by the government of the District of Columbia 1 1 So in original. Probably should be followed by a comma. any individual employed on a temporary or intermittent basis, and any employee of the Government Accountability Office or the Library of Congress; and (B) has completed at least 12 months of service— (i) as an employee (as that term is defined in section 2105) of the Government of the United States, including service with the United States Postal Service, the Postal Regulatory Commission, and a nonappropriated fund instrumentality as described in section 2105(c); or (ii) which qualifies as honorable active service in the Army, Navy, Air Force, Space Force, or Marine Corps of the United States; (2) the term “health care provider” means— (A) a doctor of medicine or osteopathy who is authorized to practice medicine or surgery (as appropriate) by the State in which the doctor practices; and (B) any other person determined by the Director of the Office of Personnel Management to be capable of providing health care services; (3) the term “parent” means the biological parent of an employee or an individual who stood in loco parentis to an employee when the employee was a son or daughter; (4) the term “reduced leave schedule” means a leave schedule that reduces the usual number of hours per workweek, or hours per workday, of an employee; (5) the term “serious health condition” means an illness, injury, impairment, or physical or mental condition that involves— (A) inpatient care in a hospital, hospice, or residential medical care facility; or (B) continuing treatment by a health care provider; (6) the term “son or daughter” means a biological, adopted, or foster child, a stepchild, a legal ward, or a child of a person standing in loco parentis, who is— (A) under 18 years of age; or (B) 18 years of age or older and incapable of self-care because of a mental or physical disability; (7) the term “covered active duty” means— (A) in the case of a member of a regular component of the Armed Forces, duty during the deployment of the member with the Armed Forces to a foreign country; and (B) in the case of a member of a reserve component of the Armed Forces, duty during the deployment of the member with the Armed Forces to a foreign country under a call or order to active duty under a provision of law referred to in section 101(a)(13)(B) of title 10 , United States Code; (8) the term “covered servicemember” means— (A) a member of the Armed Forces (including a member of the National Guard or Reserves) who is undergoing medical treatment, recuperation, or therapy, is otherwise in outpatient status, or is otherwise on the temporary disability retired list, for a serious injury or illness; or (B) a veteran who is undergoing medical treatment, recuperation, or therapy, for a serious injury or illness and who was a member of the Armed Forces (including a member of the National Guard or Reserves) at any time during the period of 5 years preceding the date on which the veteran undergoes that medical treatment, recuperation, or therapy; (9) the term “outpatient status”, with respect to a covered servicemember, means the status of a member of the Armed Forces assigned to— (A) a military medical treatment facility as an outpatient; or (B) a unit established for the purpose of providing command and control of members of the Armed Forces receiving medical care as outpatients; (10) the term “next of kin”, used with respect to an individual, means the nearest blood relative of that individual; (11) the term “serious injury or illness”— (A) in the case of a member of the Armed Forces (including a member of the National Guard or Reserves), means an injury or illness that was incurred by the member in line of duty on active duty in the Armed Forces (or existed before the beginning of the member’s active duty and was aggravated by service in line of duty on active duty in the Armed Forces) and that may render the member medically unfit to perform the duties of the member’s office, grade, rank, or rating; and (B) in the case of a veteran who was a member of the Armed Forces (including a member of the National Guard or Reserves) at any time during a period described in paragraph (8)(B), means an injury or illness that was incurred by the member in line of duty on active duty in the Armed Forces (or existed before the beginning of the member’s active duty and was aggravated by service in line of duty on active duty in the Armed Forces) and that manifested itself before or after the member became a veteran; and (12) the term “veteran” has the meaning given the term in section 101 of title 38 , United States Code.