Sign In
Maryland State Government Maryland Department of the Environment

Above Ground Storage Tanks

The Oil Control Program (OCP) has highly trained staff to help owners ensure that their aboveground storage tanks (ASTs) are in compliance with State and federal regulations.  Facilities storing oil in ASTs with aggregate capacities of 1,000 gallons of used oil or 10,000 gallons or more of virgin oil are required to have an oil operations permit (OOP) issued by the OCP.  All regulated ASTs are required to have secondary containment, such as dikes.  Other requirements for regulated ASTs can be found in COMAR 26.10.01.  The OCP is available to assist in reviewing plans.  OOPs are also required for various types of transportation of oil into and within Maryland by truck.  Please visit the Oil Transportation Licenses and Permits page for more details. 

Permit Types

For information on the following types of permits administered by the OCP and a link to the MDE Permit Guide, please visit the Land Permits page.

  • Oil Operations Permits - These include:
    • Oil Storage, transfer, and delivery;
    • Delivery from outside the State;
    • Oil-contaminated soil storage and treatment; and
    • Solidification of oil sludge, refuse, and/or oil mixed with other wastes
  • Discharge Permits - These include:
    • Discharge of treated oil contaminated groundwater to surface or ground waters of the State; and
    • Discharge of storm water and hydrostatic test water from oil terminals to surface or ground waters of the State

For Further Information

Oil Control Program

(410) 537-3442; (800) 633-6101 x3442

To Report Oil Spills Call (Available 24 hours a day)


Related Links