An Act relative to Title 5 of the State Environmental Code

This bill prevents the Massachusetts Department of Environmental Protection from requiring primary residences to install nitrogen-reducing technology upgrades unless a specific watershed permit already mandates it. It also ensures that any local government or homeowner forced to pay for such upgrades by a permit must have the costs covered by the department or state funding. Essentially, the law protects regular homes from being forced to upgrade their septic systems for environmental reasons unless they are already under a specific permit, and it requires the state to pay for those costs if a permit is issued.