The Social Security Administration (SSA) administers two programs that provide benefits based on disability: the Social Security disability insurance program (title II of the Social Security Act (Act)) and the Supplemental Security Income (SSI) program (title XVI of the Act).

Social Security | General Information

Social Security | SSI Guidelines

AVVO | SSI vs SSD “What’s the Difference”

Can I Collect Both SSI and SSDI at the Same Time?