This chapter applies to an owner and an operator of a UST system or group of UST systems located at a regulated substance storage facility. This chapter establishes the Class A operator, the Class B operator, and the Class C operator classifications, and the required knowledge, duties, skills, training requirements, and certification requirements for each operator classification. This chapter: Does not apply to an owner and an operator of a UST system that stores only heating oil for consumptive use; Does not alter the definition of an operator set forth in COMAR 26.10.01.02B; Does not apply to an individual defined as an operator under COMAR 26.10.01.02B, unless an owner and an operator of a UST system or group of UST systems located at a regulated substance storage facility designates that individual to serve as the Class A operator, the Class B operator, or the Class C operator for the UST system or group of UST systems at the regulated substance storage facility; Does not relieve an owner and an operator of a UST system of the duty to comply with the legal responsibilities under: 40 CFR Part 280; Environment Article, Title 4, Annotated Code of Maryland; Environment Article, Title 7, Annotated Code of Maryland; and COMAR 26.10.01—26.10.12; and Does not alter or transfer the legal responsibilities for, between, or among an owner and an operator of a UST system under: 40 CFR Part 280; Environment Article, Title 4, Annotated Code of Maryland; Environment Article, Title 7, Annotated Code of Maryland; and COMAR 26.10.01—26.10.12.