Duquesne University School of Law

Allegheny County Law Library (ACLL)

Photo of the Allegheny County Law Library reading room

Graphic of the Allegheny County Law Library logo

The Allegheny County Law Library (ACLL) is a free, public law library open to legal professionals and the general public, however:

  • A membership card is required to borrow library materials and to access some databases.
  • Other services may require an additional fee.
  • Rules of Conduct

Become a Library Card Holder!




Support the Library

The Allegheny County Law Library is managed by the Duquesne University Center for Legal Information through a unique joint-library partnership. Based on an agreement between Duquesne University and Allegheny County, the two libraries offer legal research collections and services that meet the needs of the legal community as well as the public of Allegheny County and western Pennsylvania.

This library is a congressionally designated depository for U.S. Government documents. Public access to the government documents collection is guaranteed by public law (Title 44 United States Code). If you have questions concerning use of government documents, please ask a librarian or staff member.