OWTS Study Guides and Application Forms

Study Guides

Class I OWTS Designer Examination Study Guide PDF file, about 1

Class II OWTS Designer Examination Study Guide PDF file, about 2

Class IV OWTS Designer Examination Study Guide PDF file, about 2

Rules Establishing Minimum Standards Relating to Location, Design, Construction and Maintenance of Onsite Wastewater Treatment Systems (OWTS) 250-RICR-150-10-6
OWTS Program Exam Schedule

Application Forms

Application for New Designers’ License After Passing Exam (Classes I,II, and IV) PDF file, less than 1

OWTS Designers' License Examination (Classes I and II) Application PDF file, less than 1

OWTS Soil Evaluators' License Examination Application PDF file, less than 1

OWTS Installers' Examination and License Application (September 2023) PDF file, less than 1

OWTS Installers' Examination and License Application (March 2023) PDF file, less than 1