National Survey of America's Families (NSAF). A survey, conducted by the Urban Institute as part of the Assessing the New Federalism project, that provides state-specific and national estimates on a wide range of child, adult, and family well-being measures, with particularly precise estimates for people in families with incomes below 200 percent of the federal poverty threshold.
Naturalized Citizen. A foreign-born person who has become a U.S. citizen.
Noncustodial Parent. Parent who does not live with his/her minor children.
Non-Filers. Persons or households who do not file tax returns. Nonfiling tax units—that is nonfilers grouped together as they would if they filed income tax returns—are included in the TPC database to get a complete picture of all households, not just those with comparatively high incomes who file income tax returns. Most non-filers do not work; many are elderly.
Normal Retirement Age. The age at which individuals qualify for full retirement benefits from Social Security and employer-sponsored pension plans; the normal retirement age for Social Security was 65 for many years, but began rising for those who turned 62 in 2000 and will rise to 67 for those born in 1960 or later. (Also known as Full Retirement Age.)
