The Congressional Research Service (CRS) is the nonpartisan policy and legal research arm of Congress within the Library of Congress, established 1914. 700 analysts across 7 divisions produce six product types: Reports (comprehensive analyses), Insights (2-4 page current issue), In Focus (2-page overviews), Legal Sidebars, Report Updates, and Testimonies. 25+ policy areas including agriculture, appropriations, budget, energy, environment, foreign affairs, health, homeland security, immigration, technology, labor, law, national defense, and transportation. The 2018 Consolidated Appropriations Act first mandated public release; crsreports.congress.gov is the official portal with 9,000+ available reports. Historically products were available only to members of Congress -- the 2012 Coburn-blocked report on top marginal tax rates and economic growth (finding no correlation) galvanized the public access movement. EveryCRSReport.com (Federation of American Scientists + Demand Progress) provides bulk access including pre-2018 reports via API at everycrsreport.com/reports.json; each report has id, title, topics array, date, and versions list. CRS differs from GAO (auditing/program evaluation) and CBO (budget scoring only). Here is CRS product type mechanics, the public access mandate, EveryCRSReport.com API structure, and a Python analysis of publication frequency and update patterns by policy area.
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