2010 ADA Standards for Accessible Design Pocket Guide
232.3 Special Holding Cells and Special Housing Cells.
Where special holding cells or special housing cells are provided, at least one cell serving each purpose shall provide mobility features complying with 807.2. Cells subject to this requirement include, but are not limited to, those used for purposes of orientation, protective custody, administrative or disciplinary detention or segregation, detoxification, and medical isolation.
EXCEPTION: Alterations to cells shall not be required to comply except to the extent determined by the Attorney General.