This part applies to owners and operators of storage tanks as defined in 20.5.101 NMAC. This part also applies to owners and operators of AST systems with capacities of 55,000 gallons or more associated with airport hydrant fuel distribution systems and owners and operators of AST systems with capacities of 55,000 gallons or more associated with UST systems with field-constructed tanks as these terms are defined in 20.5.1 NMAC. If the owner and operator of a storage tank are separate persons, only one person is required to comply with the requirements of this part, including any notice and reporting requirements; however, both parties are liable in the event of noncompliance.
N.M. Admin. Code § 20.5.118.2