; and (5) in subsection (e)(3), by striking spouse, or a son, daughter, or parent, and inserting spouse or domestic partner, or a son, daughter, parent, parent-in-law, grandchild, sibling, aunt, or uncle of the employee, or any other individual related by blood or affinity whose close association with the employee is the equivalent of a family relationship, . (c) Certification Section 6383 of title 5, United States Code, is amended— (1) in subsection (a), by striking spouse, or parent and inserting spouse or domestic partner, parent, parent-in-law, grandparent, grandchild, sibling, aunt, or uncle of the employee, or any other individual related by blood or affinity whose close association with the employee is the equivalent of a family relationship,