Professional Practice
Who oversees and administers HALS?


The National Park Service (NPS) administers the planning and operation of HALS which includes: selecting and approving landscapes for documentation, standardizing formats and developing guidelines for recording landscapes, catalogs and/or publishing the information when appropriate.

The Library of Congress accepts and preserves HALS documents, furnishes reproductions of material, and makes records available to NPS.

The ASLA Professional Practice department works with ASLA’s Historic Preservation Professional Practice Network (HP PPN) to provide advice on identifying, selecting, and documenting historical landscapes. The ASLA HP PPN, through its HALS Subcommittee, oversees the nationwide identification of historic landscapes that merit HALS documentation.

2014-2015 HALS Subcommittee:
David J. Driapsa, Chair / Coordinator
Paul Dolinsky, Chief of HALS
Tina Bishop, HP-PPN Chair
Jonathan Ceci
Helen Erickson 
Charles Leider
Elena Pascarella
Christine Pattillo
Christopher Stevens
Thaisa Way
Christa Wollenzien
Barbara Wyatt 
Carol J. H. Yetken

See the ASLA HALS Guidelines for more information about the HALS liaisons, the HALS coordinator, and the HALS subcommittee. Anyone with comments or interest in volunteering or assisting with HALS, please email