Title 5 refers to Title 5 of the State Environmental code, 310 CMR 15.000. It is a state regulation that lays the framework for design, construction, installation, and maintenance of all on-site wastewater disposal systems (sewer and septic systems).

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The purpose of Title 5 is to ensure that we safely contain and treat our waste, to prevent unnecessary contamination the world around us.

If you have found us, it's likely! The easiest way to tell is whether or not you get sewer bills from your town or city. If you do, your wastewater is not regulated by Title 5. If you don't, you likely have a septic tank on your property that is subject to Title 5.

• Within 2 years before the sale of a home. If weather conditions prevent inspection at the time of a sale, within 6 months afterward.

• When there is a proposed change to the facility which requires a building or occupancy permit.

• Any change in the footprint of a building, to make sure that new building construction will not take place on top of any system components or on the system's reserve area.

• When the property is divided, or ownership of 2 or more properties is combined.

• When MassDEP or the local Board of Health orders an inspection.

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