Seller's guide: Title 5 septic inspections
Last updated 2026-10-13. Checked against the official sources listed at the end of this page. Not legal advice: confirm local rules with the town Board of Health.
Reviewed by Title 5 Roster staff
- Confirm you need one. Most sales do; see exemptions.
- Hire a MassDEP-approved System Inspector. Only approved inspectors' reports count. Find one by town.
- Inspect early. Inspecting before listing gives you time to handle a conditional pass or failure. The report is good for 2 years (3 with annual pumping).
- Gather records: pumping receipts, the system's as-built plan from the Board of Health, and past inspections.
- Plan for winter. If frozen ground prevents inspection, you can inspect up to 6 months after closing but must notify the buyer in writing.
- Give the buyer a copy. The inspector files the report with the Board of Health within 30 days.
Frequently asked questions
When should I schedule the inspection?
Before listing is safest. You then know the result before negotiating, and one report covers you for 2 years.
What if my system fails?
You must upgrade within 2 years even if you don't sell. Many sellers fix it before closing or negotiate a credit or escrow with the buyer.
Sources: Mass.gov: Buying or Selling Property with a Septic System and 310 CMR 15.000 (Title 5), sections 15.300-15.305. Retrieved 2026-10-12. General information, not legal advice; local Boards of Health can have stricter rules.
Sources
- Mass.gov: Buying or Selling Property with a Septic System (mass.gov)
- 310 CMR 15.000 (Title 5) (mass.gov)
How do I find a MassDEP-approved Title 5 inspector?
Browse approved inspectors by town or county below; every listing comes from NEIWPCC's list of MassDEP-approved System Inspectors.
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