Input from stakeholders (e.g., inspection officials, product manufacturers, engineering professionals, and the public at large) is an important part of the IAPMO standards development process.

To ensure that all affected parties and stakeholders have the opportunity to provide their input and comment before final approval by the standards committee, public participation is encourage and welcomed.

The draft standards listed below are currently offered for public review. If you wish to submit public comments, please download the template for comments and submit it to before the submission deadline.


Standard Designation

Title Comments Due By
Template Template for Submitting Public Review Comments NA
CSA B45.8/IAPMO Z403

Terrazzo, Concrete, Composite Stone, and Natural Stone Plumbing Fixtures

November 21, 2022
CSA B45.12/IAPMO Z402

Aluminum and copper plumbing fixtures

November 21, 2022

Alternate Water Source Systems for Multi-Family, Residential, and Commercial Use

November 21, 2022

To request a copy of any or all of the drafts listed above, please contact