5 USC 6381 - Definitions

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 (v) or (ix) of section 6301 (2), but excluding any individual employed by the government of the District of Columbia[1] 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 as an employee (within the meaning of subparagraph (A));
(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 active duty means duty under a call or order to active duty under a provision of law referred to in section 101 (a)(13)(B) of title 10;
(8) the term covered servicemember means 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 an outpatient status, or is otherwise on the temporary disability retired list, for a serious injury or illness;
(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; and
(11) the term serious injury or illness, in the case of a member of the Armed Forces, means an injury or illness incurred by the member in line of duty on active duty in the Armed Forces that may render the member medically unfit to perform the duties of the members office, grade, rank, or rating.
[1] So in original. Probably should be followed by a comma.