standards for underground storage tank systems and dispenser systems that are brought into use on or after January 1, 2026, to require that those systems be compatible with automotive fuel consisting of gasoline and at least 40 percent ethanol by volume. (3) Compatibility An owner or operator may demonstrate the compatibility of an underground storage tank system with automotive fuel containing any concentration of ethanol through the use of a secondary containment system that is able— (A) to contain regulated substances leaked from the primary containment system until the regulated substances are detected and removed