"Since 1981, the Committee on Ways and Means has published the Green Book, which presents background material and statistical data on the major entitlement programs and other activities within the Committee's jurisdiction." (Green Book -- About)
Below is a list of federal agencies that may be of interest to social workers. This is by no means a comprehensive list; to locate a comprehensive list of federal agencies, you can refer to the list of Commonly Used Agency Acronyms provided by the United States Government Manual, which are linked to below.
"The Department of Health and Human Services strengthens the public health and welfare of the American people by making affordable and quality health care and childcare accessible, ensuring the safety of food products, preparing for public health emergencies, and advancing the diagnosis, treatment, and curing of life-threatening illnesses." (U.S. Government Manual)
"The Administration for Children and Families administers programs and provides advice to the Secretary on issues relevant to children, youth, and families; child support enforcement; community services; developmental disabilities; family assistance; Native American assistance; and refugee resettlement." (U.S. Government Manual)
"The Centers for Medicare and Medicaid Services, formerly known as the Health Care Financing Administration, administers the Medicare, Medicaid, and related Federal medical care programs." (U.S. Government Manual)
"The Administration for Community Living administers programs and advises the Secretary on issues relevant to people with disabilities, their families and caregivers, and the independence, wellbeing, and health of older adults." (U.S. Government Manual)
The Department of Housing and Urban Development oversees our Nation’s housing needs, ensures fair housing opportunities, and creates strong, sustainable, and inclusive communities." (U.S. Government Manual)
"The Social Security Administration manages the retirement, survivors, and disability insurance programs that are known as Social Security; it administers the Supplemental Security Income program for the aged, blind, and disabled; and it assigns Social Security numbers to U.S. citizens and maintains earnings records based on those numbers." (U.S. Government Manual)