The Master Beneficiary Record (MBR) master file contains the data that generates Social Security benefit checks under the Social Security Administration (SSA) Old Age, Survivors, and Disability Insurance (OASDI) program. The OASDI program provides income support to individuals who have made the transition from work to retirement, who are disabled, or the survivor of a spouse or parent who was entitled to benefits. An MBR record is created whenever an individual applies for benefits. However not everyone who applies receives benefits and the MBR record will reflect the final decision about the initial claim, including denials.