Allegheny County Law Library (ACLL)

Banner Picture: Allegheny County Law Library Main Hall 


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 and other services may require an additional fee.


NOTICE: ACLL will be closed Monday, May 27th.


Library Information:

Membership | Staff directory | Rules of Conduct


Library News:

Facebook | Twitter | LinkedIn 



ACLLWire- The Allegheny County Law Library's e-mail notification service. ACLLWire provides interested parties with information regarding the Allegheny County Law Library, CLE opportunities, reviews of print & digital research resources, legal news, and special events. The newsletter is available to ACLL Members, practitioners, members of the public, or anyone interested in the resources available via Allegheny County Law Library. If you wish to receive the latest ACLL news, please subscribe by sending your name and email address with "ACLLWire Subscribe " in the subject field.



Continuting Legal Education Classes | eReference | Document Delivery | More Services


Electronic Resources:

QuickSearch (library catalog) | All Electronic Databases | Fastcase (small firm members)


Starting Points for Research:

Legal Information and News | Government Information | Pro Bono Resources


Pennsylvania Law Guides:

Bibliography of Pennsylvania Law | Allegheny County Codes and Ordinances | Pennsylvania Constitution Guide


Subject Guides:

ADR | Animal Law | Criminal Law | More Guides


The Allegheny County Law Library is managed by the Duquesne University Center for Legal Information (Center) 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.

The Center for Legal Information (Center) is open to the public at large to conduct legal research; however, non-law students must sign-in upon entering the Center. Moreover, after regular business hours and during exam periods, access to the Center is restricted.


This library is a congressionally designated depository for United States 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.