20 C.F.R. § 222.55 When a stepchild is dependent.
Title 20 - Employees' Benefits
An employee's stepchild, as described in §222.35, is considered dependent on the employee if the stepchild receiving at least one-half of his or her support from the employee at one of the times shown in §222.51. [54 FR 42949, Oct. 19, 1989, as amended at 62 FR 47138, Sept. 8, 1997]
Title 20: Employees' Benefits
PART 222—FAMILY RELATIONSHIPS
Subpart F—Child Support and Dependency
§ 222.55 When a stepchild is dependent.