We have not verified a statewide law in Maryland requiring a septic inspection at the time a property transfers. That does not mean no requirement applies where you're buying: county and municipal time-of-transfer ordinances exist in various places around the country outside the states with a statewide law. Check the county page below, and ask the local health department directly — that is the authoritative source for a local ordinance, and this page is not.
No statewide Maryland law requiring septic inspection at time of transfer. Three states do have a real, verified one — Massachusetts, Iowa, and a waterfront-only law in New Hampshire — for comparison; Maryland is not one of them, at least not at the state level. A county or municipality in Maryland could still have its own ordinance we have not audited; the local health department for the specific county is the authoritative source.
Maryland Department of the Environment (MDE), Wastewater Permits Program — Onsite Disposal Systems; professional licensing via the State Board of On-Site Wastewater Professionals. See the full Maryland septic regulation page for the permit sequence and licensing.
Wherever you're transacting in Maryland, the septic permit or as-built (where one exists) is almost always held by the county or district health office, not the state. How to find septic records before closing covers how to pull it; below is the county-by-county index of what we hold for Maryland.
| County | Records held |
|---|---|
| Howard | 44,795 |
| Wicomico | 163 |
| Calvert | 50 |
| Cecil | 32 |
| St. Mary's | 24 |
| Caroline | 15 |
| Charles | 11 |
| Frederick | 6 |
| Talbot | 5 |
| Harford | 1 |
| Somerset | 1 |
| Anne Arundel | 1 |
Full Maryland county index · Maryland regulations · Maryland septic companies · Open the parcel map
We have not verified a statewide law requiring one in Maryland. A county or municipal ordinance could still apply; check with the local health department where the property is located.
Maryland Department of the Environment (MDE), Wastewater Permits Program — Onsite Disposal Systems; professional licensing via the State Board of On-Site Wastewater Professionals
At the county or district health office that issued the permit, in almost every case. See the county-by-county index on this page for Maryland, and our general guide to finding records before closing.
Reviewed 2026-08-31 against the official sources linked above (where a source is cited) or, where none is cited, left deliberately general. Laws, lender overlays and local ordinances change; confirm current requirements with the county or state agency, your lender, and a licensed inspector before you rely on this for a closing.