Plumbing and water heaters
Composting Toilets Buyers Guide 2026: The Types, Maintenance Requirements and Legal Permits
...health department or building official before installation.
North America (US and Canada): Most jurisdictions follow the International Plumbing Code (IPC) or Uniform Plumbing Code (UPC). Many states and provinces now recognize NSF/ANSI Standard 41, which certifies composting toilets for public health safety. However, s...
