An owner, an operator, and a person in charge of an AST system with a field-erected AST shall: If installing or relocating a field-erected AST on or after June 13, 2022, install piping that does not penetrate a secondary containment dike, unless otherwise approved by the Department; Ensure an existing field-erected AST meets the following requirements: For piping connected to an AST penetrating a secondary containment dike: Obtain approval of the Department to leave the piping in place; or Properly abandon and replace the piping not later than 1 year after June 13, 2022 with piping that does not penetrate the secondary containment dike; and For underground piping connected to an AST, ensure the piping complies with the underground piping requirements in §E of this regulation not later than 1 year after June 13, 2022; Ensure an aboveground piping system connected to a field-erected AST is: Constructed of carbon steel, alloy steel, or stainless steel piping; Compatible with the type of oil being transferred; Designed and constructed in accordance with industry recognized standards; Liquid tight; Properly supported by permanent bracing to prevent structural weaknesses; and Protected against physical damage; Ensure a piping system installed aboveground or inside of a building is not constructed with: Low melting point materials, such as aluminum, copper, or brass; Materials that soften on fire exposure, such as plastics; or Non-ductile materials, such as cast iron; and If installing an underground piping system, comply with the following requirements: Install the piping system, including containment sumps, in accordance with the performance standards in COMAR 26.10.03.02 and .03A(3); Installation of the piping system is performed in the continuous on-site presence and under the direction of a certified UST system technician, as required under COMAR 26.10.02.03D; Test the piping system for tightness in accordance with COMAR 26.10.03.05 and 26.10.05.02D; Test the containment sumps for tightness in accordance with COMAR 26.10.03.03A(3); Provide a method of leak detection in accordance with COMAR 26.10.05.02D; Maintain the containment sumps clean and free of liquid; and If a test for tightness conducted in accordance with §E(3) or (4) of this regulation results in a failed test result or a leak is found: Report the failed test result to the Department within 2 hours in accordance with COMAR 26.10.08.01; and Follow the investigation and confirmation procedures in 26.10.08.03, including making repairs and retesting the piping system and containment sumps for tightness.