Code of Federal Regulations Title 32. National Defense § 32.1630.45 Class 4–G:  Registrant exempted from service because of the death of his parent or sibling while serving in the Armed Forces or whose parent or sibling is in a captured or missing in action status

(1) Whose parent or sibling of the whole blood was killed in action or died in the line of duty while serving in the Armed Forces of the United States after December 31, 1959, or died subsequent to such date as a result of injuries received or disease incurred in the line of duty during such service;  or

(2) Whose parent or sibling of the whole blood is in a captured or missing status as a result of such service in the Armed Forces during any period of time;  or