We establish the EOD of a period of disability on the earliest possible date based
                  on the medical and other evidence in the file. Establishing the earliest possible
                  EOD is important because of the following reasons.
               
               
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                           For DIB claims, the EOD affects the claimant’s entitlement to DIB, the amount of the
                              monthly benefit, and the benefit payment period.
                            
 
 
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                           If we subsequently terminate the claimant’s disability benefits, the EOD of a period
                              of disability for DIB, or a disability freeze, affects later entitlement to title
                              II benefits for the claimant or his or her family.
                            
 
 
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                           The period of disability established for the current DIB, or a disability freeze,
                              affects insured status for a subsequent period of disability, retirement or survivor’s
                              benefits, as well as the amount of monthly disability, retirement, or survivors benefits.
                            
 
 
EXAMPLE: Jill filed an application for DIB benefits on October 19, 2011. Her alleged onset
                  date (AOD)/potential onset date (POD) is February 2, 2007. Disability Determination
                  Services reviewed the claimant’s medical evidence and found she had a central nervous
                  system vascular accident (CVA) on February 2, 2007. Because of the CVA, DDS found
                  the severity of Jill’s condition met listing 11.04.A. as of February 2, 2007. The
                  DDS establishes a February 2, 2007 onset date for a period of disability. Jill will
                  not receive cash benefits retroactive to February 2, 2007, as our regulations (20
                  CFR 404.621) direct that a claimant can only receive benefits for up to 12-months
                  immediately before the month in which a claimant files an application. Since Jill’s
                  application date is more than 12 months after the onset of the period of disability,
                  she cannot receive benefits retroactive to February 2, 2007. However, the February
                  2, 2007 onset date of a period of disability enhances Jill’s monthly benefit amount
                  for both disability and retirement benefits and may preserve potential future entitlements
                  to title II benefits for Jill and her family.