Rainwater Collection System Design and Installation Consensus Committee


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. If you wish to be placed on the “interested parties” list for the development of this standard, contact the ICC Secretariat, Jessie Sorensen.

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Rainwater Collection System Standard Project

Background and Scope

ICC, as an ANSI-accredited standards developer, 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 standard to undergo development, 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 Approved standard consensus procedures, Council Policy # 12 and CSA’s 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 Jessie Sorensen at jsorensen@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.

CSA B805-18/ICC805-2018 Revised November 2019 edition received ANSI Approval as an American National Standard and is available in electronic and print form.

The committee has elected to undergo a formal revision cycle to revise CSA B805-18/ICC805-2018. The committee met on February 8 & 10, 2022 to consider committee proposals.  The meeting agenda and meeting minutes are posted below under "Resource Documents".

The standard with underline/strikethrough revisions was  posted for the SCC and ANSI public review period. Notice of the posting was published in the March 18, 2022 edition of ANSI Standards Action with a deadline to receive public comments on May 2, 2022.

The committee met on May 11, 2022 to consider the public comments received.  The Committee Action Report is posted below under "Resource Documents".

On September 10, 2022 the committee successfully balloted the approval of the next edition of the standard.  A teleconference committee meeting was held on September 20, 2022 to disposition any comments received during the balloting.

The Code Council is pleased to announce that ANSI has Approved the next 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.  The next edition will be published shortly pending SCC Accreditation.  


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).

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Meeting Documents

Public Review Documents

Other Documents