Example: R, an alien, leaves the United States on August 15, 1967, and returns on February 1, 1968. He leaves again on February 15, 1968, and does not return until May 15, 1968, when he spends 1 day in the United States. He has been receiving monthly benefits since July 1967.
R's first 6-month period of absence begins September 1, 1967. Since this period begins before January 2, 1968, his visit (Feb. 1, 1968, to Feb. 15, 1968) to the United States for less than 30 consecutive days is sufficient to break this 6-month period.
R's second 6-month period of absence begins March 1, 1968. Since this period begins after January 2, 1968, and he was outside the United States for 30 consecutive days, he must return and spend 30 consecutive days in the United States prior to September 1, 1968, to prevent nonpayment of benefits beginning September 1968. If R fails to return to the United States for 30 consecutive days prior to September 1, 1968, payments will be discontinued and will not be resumed until R spends at least 1 full calendar month in the United States.
Eligible for benefits means that an individual satisfies the criteria described in subpart D of this part for benefits at a particular time except that the person need not have applied for those benefits at that time.
Other parent for purposes of paragraph (d)(1)(ii) of this section means any other living parent who is of the opposite sex of the worker and who is the adoptive parent by whom the child was adopted before the child attained age 16 and who is or was the spouse of the person on whose earnings record the child is entitled; or the natural mother or natural father of the child; or the step-parent of the child by a marriage, contracted before the child attained age 16, to the natural or adopting parent on whose earnings record the child is entitled. (Note: Based on this definition, a child may have more than one living other parent. However, the child's benefit will be payable for a month if in that month he or she has one other parent who had resided in the U.S. for at least 5 years.)
Resided in the United States for satisfying the residency requirement means presence in the United States with the intention of establishing at least a temporary home. A period of residence begins upon arrival in the United States with that intention and continues so long as an attachment to an abode in the United States is maintained, accompanied by actual physical presence in the United States for a significant part of the period, and ending the day of departure from the United States with the intention to reside elsewhere. The period need not have been continuous and the requirement is satisfied if the periods of U.S. residence added together give a total of 5 full years.
20 C.F.R. §404.460