Another way to search is to type ("50 state" OR "fifty state") AND [keywords] into the search box in Westlaw, Nexis Uni, or HeinOnline.
Below is a small sample of tracking and surveillance tools based on the collection on the University of Michigan's Health Management and Policy Research Guide. A larger list is available as table 3 in The Public Health Law Research's report "Resources for Policy Surveillance."
Full text of law reviews/legal periodicals plus primary sources such as the Code of Federal Regulations; Federal Register; Foreign Relations of the United States (FRUS); Treaties and Agreements Library; United States Code; U.S. Attorney General Opinions; U.S. Congressional Documents; U.S. Federal Agency Documents, Decisions, and Appeals; U.S. Federal Legislative History Library; U.S. Statutes at Large; State Session Laws Library; State Statutes: A Historical Archive; Acts of the Parliament of Canada (Annual Statutes); World Constitutions Illustrated; World Treaty Library. Also includes special topics databases.
Canadian Content
Acts of the Parliament of Canada (Annual Statutes)
Provincial Statutes of Canada
Case Law
Preview of United States Supreme Court Cases
U.S. Supreme Court Library
International Resources
Acts of the Parliament of Canada (Annual Statutes)
Foreign Relations of the United States (FRUS)
History of International Law
Law Library of Congress Reports
Open Society Justice Initiative
Provincial Statutes of Canada
U.S. Treaties and Agreements Library
World Constitutions Illustrated: Contemporary & Historical Documents and Resources
World Treaty Library
International Treaties and Agreements
U.S. Treaties and Agreements Library
World Treaty Library
Journals and Periodicals
Bar Journals
Law Journal Library
NOMOS: American Society for Political and Legal Philosophy
Preview of United States Supreme Court Cases
Special Collections
Air and Space Law
American Enterprise Institute (AEI)
Brennan Center for Justice Publications at NYU School of Law
Business and Legal Aspects of Sports and Entertainment (BLASE)
COVID-19: Pandemics Past and Present
Cataloging Legal Literature
Civil Rights and Social Justice
Criminal Justice & Criminology
Democracy in America
Gun Regulation and Legislation in America
Indigenous Peoples of the Americas: History, Culture & Law
John F. Kennedy Assassination Collection
LGBTQ+ Rights
Labor and Employment: The American Worker
Law Academy Project
Legal Classics
Military Legal Resources (U.S. Army JAG School)
Military and Government
NOMOS: American Society for Political and Legal Philosophy
Open Society Justice Initiative
Pentagon Papers
Religion and the Law
Reports of U.S. Presidential Commissions and Other Advisory Bodies
Slavery in America and the World: History, Culture & Law
Voting Rights & Election Law
Water Rights & Resources
Women and the Law (Peggy)
U.S. Federal Content
Administrative Conference of the United States (ACUS)
Bremer-Kovacs Collection: Historic Documents Related to the Administrative Procedure Act of 1946
COVID-19: Pandemics Past and Present
Civil Rights and Social Justice
Code of Federal Regulations
Executive Privilege
Federal Register Library
GAO Reports and Comptroller General Decisions
History of Supreme Court Nominations
Immigration Law & Policy in the U.S.
Indigenous Peoples of the Americas: History, Culture & Law
John F. Kennedy Assassination Collection
Labor and Employment: The American Worker
Law Library of Congress Reports
Military Legal Resources (U.S. Army JAG School)
Preview of United States Supreme Court Cases
Reports of U.S. Presidential Commissions and Other Advisory Bodies
U.S. Code
U.S. Congressional Documents
U.S. Congressional Serial Set
U.S. Federal Agency Documents, Decisions, and Appeals
U.S. Federal Legislative History Library
U.S. Presidential Impeachment Library
U.S. Presidential Library
U.S. Statutes at Large
U.S. Supreme Court Library
Water Rights & Resources
U.S. State Content
Civil Rights and Social Justice
LGBTQ+ Rights
National Survey of State Laws
Prestatehood Legal Materials: A Fifty-State Research Guide
Session Laws Library
State Attorney General Reports and Opinions
State Constitutions Illustrated
State Reports: A Historical Archive
State Statutes: A Historical Archive
Subject Compilations of State Laws
Water Rights & Resources