Plumbing Standards & Legislative Regulations | HD Supply

Lead-Free Drinking Water

Learn more about the Federal legislation affecting drinking water and plumbing parts.

Energy Standards for Water Heaters

Learn more about the 2015 water heater energy efficiency regulations.

NOx Emissions Standards for Water Heaters

Water heaters in California and Texas must comply with lower NOx emissions requirements.

Water Conservation

Some areas have regulations in place requiring low-flow plumbing fixtures.