National Insurance number
The National Insurance number is a number used in the United Kingdom in the administration of the National Insurance or social security system. It is also used for some purposes in the UK tax system. The number is described by the United Kingdom government as a "personal account number".
Social programs in the United States
The Social Security program mainly refers to the Old Age, Survivors, and Disability Insurance (OASDI) program, and possibly the unemployment insurance program. Retirement Insurance Benefits (RIB), also known as Old-age Insurance Benefits, are a form of social insurance payments made by the U.S. Social Security Administration paid based upon the attainment old age (62 or older).