Hertfordshire Archives and Local Studies (HALS) is the archival department of Hertfordshire County Council. HALS is a joint service of Hertfordshire County Record Office and the Hertfordshire Country Local Studies Library.
HALS collects and preserves archival materials from 1060 onwards, relating to the county of Hertfordshire.
HALS is part of the County Archives Research Network (CARN) and holds Archive Service Accreditation.
HALS holds the records of: