There are some agencies that offer "recovery dive training" or a public safety diver course. There isn't an national regulating body for PSD. Most of the dive teams you will find are volunteer organizations. I've read differing statistics from 85% or more are volunteer. The team I am a part of: SMART In 1988 SMART Divers was organized to assist public service agencies and organizations with underwater search, recovery, and crime scene investigations. SMART became a non-profit 501 (c)(3) organization in 1997 and was incorporated into the South Hays Fire Department in June 2004. SMART combines the unique skills of police officers, fire-rescue, and EMS trained personnel with the field of search and recovery diving to form a specialty team of underwater investigators. SMART specializes in evidence recovery and documentation of the underwater scene with advanced video technology. This is a highly trained dive team that includes dive instructors, dive masters, underwater archeologist, specialty-advanced divers, haz-mat specialist, swift water rescue, deep technical, topside technicians, and cave divers. We primarilly do our own training for recovery diving operations.