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Welcome to US Constitutional Law

US Constitutional Law (USC) provides a comprehensive research resource on the law, politics, and history of constitutionalism in the United States at the federal and state levels. Combining extensive primary materials with expert commentary, the service provides researchers with unparalleled access to the historical development of federal and state constitutionalism.


Democracy Collection

To celebrate the International Day of Democracy 2020 (15 September) explore our curated collection of Max Planck Encyclopedia of Comparative Constitutional Law articles, Oxford Constitutions of the World articles, and book chapters covering key issues, jurisdictional perspectives and the essential terminology of Democracy. All content is free to read until 15 December 2020.

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Site News

July 5, 2021

MPECCoL June 2021 Update

The Max Planck Encyclopedia of Comparative Constitutional Law has added 2 new articles to the collection, taking the total to 268.

June 7, 2021

OCW May 2021 Update

For May 2021, Oxford Constitutions of the World adds 7 new documents and 2 historical documents

May 7, 2021

OCW April 2021 Update

For April 2021, Oxford Constitutions of the World adds 3 new documents and 3 historical documents

May 4, 2021

MPECCoL April 2021 Update

For April 2021, 4 new articles have been added to Max Planck Encyclopedia of Comparative Constitutional Law, taking the total to 266.