American Rainwater Catchment Systems Association, ARCSA, A non-profit organization founded to promote rainwater catchment systems in the United States.

Rainwater Harvesting Master (RWHM) Program

Click here if you've attended a RWHM workshop
and wish to complete a Course Evaluation survey.

ARCSA’s “Rainwater Harvesting Master” (RWHM) Program is designed to recognize Accredited Professionals who continue to increase their knowledge and skills to a much higher degree and have proven they are leaders in the rainwater harvesting industry. This is the highest designation offered by ARCSA.

Current requirements for the “RWHM” designation are as follows:

ARCSA current member
ARCSA current Accredited Professional designation
42 hours of additional instruction
Complete the Design and Construction Workshop

Completion also means completing and passing a take-home problem (those who have already taken the D/C Workshop will be provided a problem to complete at home and submit for grade (a blind committee will grade). The design must be submitted within 60 days of the D/C Workshop or receiving the design problem.

Passing a closed book RWHM test (Passing score of 80 on the RWHM exam) Note: Applicants for “RWHM” designation must meet all requirements, except the five design/construction projects, before they take the RWHM test. Applicants will have up to five years after attending the Design/Construction Workshop to complete all the RWHM requirements.

Complete the design and/or construction of 5 acceptable rainwater collection systems after receiving the Accredited Professional recognition.
$150 application and testing fee
Acquire at least 8 CEUs annually- annual administrative fee-$25

Note: Applicants for “Rainwater Harvesting Master” designation must meet all other requirements before taking the RWHM test. Applicants will have five years after taking the Design/Construction Workshop to complete all CP requirements.

Click here for the Event Calendar including a complete schedule of workshops.
Click here if you have attended a RWHM workshop and would like to help us with a survey.