An educational, cited reference for homeowners — not a claim that ClickCesspool services Maryland today.
Short answer: Maryland sets statewide minimum standards for septic systems through COMAR 26.04.02, administered by MDE, with permits for individual systems issued by county health departments.
Last updated: September 2026. This page summarizes public Maryland regulatory information for homeowner reference and is not legal advice — always confirm current requirements directly with the state or local agency cited below. This is a reference/educational page: ClickCesspool's licensed operator network currently covers Suffolk & Nassau County, NY only, and this page does not claim ClickCesspool provides service in Maryland.
Maryland sets statewide minimum standards for septic systems through COMAR 26.04.02, administered by MDE, with permits for individual systems issued by county health departments.
No statewide law requiring a septic inspection at time of sale was found. MDE and University of Maryland Extension recommend inspection every 3-5 years based on tank/household size, but this is guidance, not a sale-triggered mandate.
No fixed statewide interval (like "every 3 years") is codified for conventional septic tanks -- COMAR 26.04.02 instead requires septage be removed "as needed" to prevent nuisance conditions. However, for Best Available Technology (BAT) nitrogen-reducing units specifically, COMAR 26.04.02.07(E) does codify a mandatory annual operation & maintenance visit by a certified provider.
Permits for individual systems are issued by county health departments under COMAR standards. Separately, Maryland runs a statewide professional licensure board -- the State Board of On-Site Wastewater Professionals (MDE), requiring registration (~$150/2 years) to work on septic systems statewide.
Maryland's statewide licensure board for septic professionals is more centralized than most states' county-by-county contractor licensing (e.g. Suffolk's Liquid Waste license or Nassau's Home Improvement license), and its codified annual-maintenance mandate for BAT/nitrogen-reducing systems specifically parallels Suffolk's Article 19 I/A OWTS maintenance-contract requirement.
ClickCesspool connects Suffolk & Nassau County, NY homeowners with licensed, bonded operators. Outside Long Island, use this page as a reference and contact your state or local agency listed above.
Request Service (Suffolk & Nassau, NY) →