National Deaf Freedom Association, Inc. The National Deaf Freedom Association (NDFA) is a non-profit 501(c)4 social welfare organization providing access to Federal, State, and City/County legislators. Vision: NDFA envisions for all Deaf people in the United States of America where there is humanity, social justice, and an understanding of the community's economic needs, and encourages development consistent with those needs.NDFA aims to improve the Deaf and organizations involving the Deaf as a convener, connectors, and catalysts for change. Our Core values include Respect, Community, Cultural Diversity, Equality, Freedom of Choice, Happiness, Courage, and Justice.