# Delaware — Septic system inspection at property sale: which states require it

For Delaware, inspection required at sale? is For all properties utilizing an OWTDS that are sold or otherwise transferred to other ownership, the persons must have the system pumped out and inspected by a Class F and Class H licensee, respectively, prior to completion of the sale; exemptions is If an inspection has occurred within the previous 36 months and the property owner can provide proof of the pump out and inspection and the system is not a cesspool or seepage pit, then the inspections referred to in Section 3.31.13 will suffice; authority is 7 Del. Admin. Code § 7101-3.0, verified against its source on 2026-08-18.

- **State:** Delaware _(our reading, not quoted from the source)_
- **Inspection required at sale?:** For all properties utilizing an OWTDS that are sold or otherwise transferred to other ownership, the persons must have the system pumped out and inspected by a Class F and Class H licensee, respectively, prior to completion of the sale _(verified: appears in the quote below)_
- **Exemptions:** If an inspection has occurred within the previous 36 months and the property owner can provide proof of the pump out and inspection and the system is not a cesspool or seepage pit, then the inspections referred to in Section 3.31.13 will suffice _(verified: appears in the quote below)_
- **Authority:** 7 Del. Admin. Code § 7101-3.0 _(verified: appears in the quote below)_

## What the source says

> 3.31.13 For all properties utilizing an OWTDS that are sold or otherwise transferred to other ownership, the persons must have the system pumped out and inspected by a Class F and Class H licensee, respectively, prior to completion of the sale. An extension will be given to sheriff sales, auctions, short sales and cash sales for a period not to exceed 90 calendar days from date of sale. All inspections of on-site wastewater treatment and disposal systems shall be submitted to the Department on forms approved by the Department (see Exhibit A). These forms shall be submitted within 72 hours of inspection completion. 3.31.13.1 For transfers of new property, the certificate of completion will suffice if issued within the previous 24 months, or; 3.31.13.2 If an inspection has occurred within the previous 36 months and the property owner can provide proof of the pump out and inspection and the system is not a cesspool or seepage pit, then the inspections referred to in Section 3.31.13 will suffice, or;

## Source

- https://www.law.cornell.edu/regulations/delaware/7-Del-Admin-Code-SS-7101-3.0

Last verified: 2026-08-18. Review by: 2027-08-18.
Part of [Septic system inspection at property sale: which states require it](https://referencesource.org/septic-inspection-at-property-transfer/).