Most recent
ANSI/APSP/ICC 3-2014
American National Standard for Permanently Installed Residential Spas and Swim Spas
This standard is intended to cover permanently installed residential spas and swim spas and not public spas, swim spas or factory built residential portable spas, swim spas that are used for bathing and are operated by an owner. In this type of spa the heater and water circulating equipment are not an integral part of the product. The spa is intended as a permanent fixture, and is not intended to be moved.
APSP: Association of pool and spa professionals [apsp]