On-site Systems - Property Transfer Inspectors

​​​Information for ​​​On-site Sewage Disposal System Property Transfer Inspectors (PTIs)​​​

The law surrounding property transfer inspections for on-site sewage disposal systems change​d significantly in 2021 and 2022. Please refer to this page to make sure you are in compliance with the new requirements.

Prior Training Course Requirement (1999 to 2021) - Now VOID

Until October 1, 2021, § 9-217.1 of the Environment Article required any person engaged in the business of inspecting on-site sewage disposal systems for the purposes of a property transfer to complete a training course approved by the Maryland Department of the Environment (Department). Individuals that had taken an approved course were listed on the Department's website (click here).

Licensing Requirements and Fee (2021)

During the 2021 legislative session, the Maryland General Assembly passed legislation creating new licensing requirements for all persons providing services for the inspection of on-site sewage disposal systems for property transfers in the State. The legislation repealed § 9-217.1 and added § 9-217.2 which required, as of July 1, 2022, any individual engaged in inspecting an on-site sewage disposal system to be licensed by the Department. In response to the legislation, the Department developed regulations under COMAR 26.04.12. These regulations detail the terms, conditions, and requirements for licensure. Specific conditions (COMAR allow for an individual previously listed on the Department’s website to become licensed. The license is valid for a two (2) year period. 


Once the Department receives an application and fee, the applicant will receive a license, a standard inspection form (MS Excel), and guidance document. The Department will, as of January 1, 2023, remove the previous list of approved individuals and replace it with the “Licensed Individuals for Property Transfer Inspections”.

Board of On-site Wastewater Professionals and Registration Fee (2022)

During the 2022 legislative session, the Maryland General Assembly passed legislation establishing a State Board of On-Site Wastewater Professionals under Title 9, Subtitle 11A of the Environment Article. The law requires an individual who provides an on-site wastewater service to be licensed by the Board. This includes a property transfer inspection of an on-site sewage disposal system. ​


Until the Board is created, §9-11A-15 requires any individual who provides on-site wastewater services in the State to pay a registration fee of $150 by December 31, 2022,  in order to continue providing these services. This $150 registration fee must be paid every two years thereafter until the Board is seated and sets its own licensing fees. Property transfer inspectors that have already paid the $150 licensing fee under the 2021 legislation do not have to pay the registration fee established under the 2022 legislation.


The Department will publish, starting January 1, 2023, on their website the list of Registered Individuals for On-Site Wastewater Services. As of January 1, 2023, any Department licensed property transfer Inspectors will automatically be listed, without the need to submit an application. Additional information pertaining to the registration can be found here​.

​Contact Info

If you have any questions, concerns, or comments, or you would like more information, please contact the On-Site Systems Division via email at onsitewastewater.mde@maryland.gov.  

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