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:
Christopher Stevens, ASLA, Chair / Coordinator
Paul Dolinsky, ASLA, Chief of HALS
Tina Bishop, ASLA, HP-PPN Chair
Jonathan Ceci, ASLA
Christine Donhardt, ASLA
David Driapsa, ASLA
Helen Erickson, Associate ASLA
Birgit Kibelka, ASLA
Andrew Kohr, ASLA 
Charles Leider, FASLA
Elena Pascarella, ASLA
Christine Pattillo, FASLA
Thaisa Way, ASLA
Christa Wollenzien, ASLA
Barbara Wyatt, ASLA
Carol J. H. Yetken, ASLA

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