Example: You are receiving SSI benefits when you lose your home and enter a public emergency shelter for the homeless on March 10, 1988. You remain a resident of a shelter until October 10, 1988. Since you were not in the shelter throughout the month of March, you are eligible to receive your benefit for March without having this month count towards the 6-month period. The last full month throughout which you reside in the shelter is September 1988. Therefore, if you meet all eligibility requirements, you will also be paid benefits for April through September (6 months during the 9-month period September 1988 back through January 1988). If you are otherwise eligible, you will receive your SSI benefit for October when you left the shelter, since you were not a resident of the shelter throughout that month.
20 C.F.R. §416.211