Rainwater Collection System Design and Installation Consensus Committee
(IS-RCSDI)

The IS-RCSDI committee is reaffirming the 2022 Edition of CSA B805/ICC 805. The standard is posted for a 45-day ANSI public review period as published in the August 21, 2026 edition of ANSI Standards Action. The deadline to submit public comments is October 5, 2026.  Comments may be submitted here:  https://form.jotform.com/Code_Apps/ICC-Public_Comments

The 2022 edition may be viewed for free on ICC's Digital Codes platform.

The Code Council adheres to openness and transparency in our Standards development process. All ICC Standards committee meetings are open to the public. Any interested party can participate in committee meetings and can be considered by the committee for membership on any work-group that the committee creates. Interested parties will be notified by email of standards activities related to IS-RCSDI, including committee meetings, sub-group meetings and the availability of standard development documentation.

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Rainwater Collection System Standard Project

Background and Scope

ICC provided notice of the intent to develop an ANSI consensus standard for the design and installation of rainwater harvesting systems through the ANSI Project Notification System (PINS).  The scope of the first edition standard to undergo development, CSA B805/ICC 805, was described as follows in the filing:

"Applies to the design, installation and maintenance of rainwater collection systems intended to collect, store, treat, distribute, and utilize rainwater for potable and nonpotable applications."

Rainwater Collection System Design and Installation Consensus Committee (IS-RCSDI)

The Rainwater Collection System Design Consensus Committee (IS-RCSDI) was appointed by the ICC Board of Directors in collaboration with CSA and has primary responsibility for the development of the standard.

All standard development is subject to ICC's ANSI Accredited standard consensus procedures, Council Policy #12, #12A and CSA’s SCC Accredited standard development procedures.  All meetings of the IS-RCSDI are open to attendance and participation by the public.

  • See Resource Documents below for a current committee roster.

Working groups may be formed to address particular topics within the standard and IS-RCSDI committee membership is not required to join any such group. Interested parties should contact the ICC staff secretariat Karl Aittaniemi at kaittaniemi@iccsafe.org or the CSA staff secretariat Monica Khalil at monica.khalil@csagroup.org to be notified of future meetings and developments related to this project or signup for the Interested Parties List.  ICC or CSA membership is not required to participate.

Previous meeting agendas and meeting minutes are posted below under "Resource Documents" documenting the development of the previous edition.

The Code Council was pleased to announce that ANSI Approved the 2022 edition of the standard on December 8, 2022.  The Code Council would like to thank the experts that serve on the committee and for their diligent and thorough work.    

 

Documents and Links

Documents and links related to the development of the standard, including meeting notices, minutes, agendas, and draft documents are provided below. Click each icon to view document(s).

Note to Word users: To view/download, right click icon, select "save target as" and save to your computer.

Meeting Documents

Public Review Documents

Other Documents

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