CBO's mandate is to provide the Congress with objective, nonpartisan, and timely analyses to aid in economic and budgetary decisions on the wide array of programs covered by the federal budget and the information and estimates required for the Congressional budget process.
CBO makes many of its reports public.
Many CBO Reports can be found by searching the Library Catalog.
CRS is the public policy research arm at the Library of Congress. Unlike GAO and CBO, however, it is not authorized to release its reports to the public. Any member of Congress can release CRS reports (unless they contain classified information) but CRS will not do so of its own volition. This makes finding CRS reports somewhat difficult.
Sources: About CRS
New legislation passed in 2018 directed the CRS to make CRS Reports available to the public. Several organizations and universities collect CRS reports that have been placed in the public domain. Try searching Google by report title if you cannot find what you are looking for at the sites linked to below.
O'Neill Microfilm JK1108.M3x suppl.
O'Neill Index Area JK1108.M3 suppl.
"The U.S. Government Accountability Office (GAO) is an independent, nonpartisan agency that works for Congress. Often called the 'congressional watchdog,' GAO investigates how the federal government spends taxpayer dollars." GAO investigates how efficiently federal funds are being spent and engages in broad-based policy analyses.
Source: About GAO
GAO makes many of its reports public.
Many GAO Reports can be found through the Library Catalog:
ProQuest Congressional (BC Community Only)