The Portable Sanitation Association International (PSAI) is an international trade association dedicated to expanding and improving portable sanitation services and facilities worldwide. It has its headquarters in Bloomington, Minnesota, United States. PSAI's first meeting was held in New Orleans in 1971.
Through their efforts, PSAI hopes to have the environment become a cleaner and safer place, and is devoted to the proper handling of human waste.
References
Portable Sanitation Association International Wikipedia(Text) CC BY-SA