Definitions. In this regulation and in Regulations .15-1 through .15-3 of this chapter, the following terms have the meanings indicated. Terms Defined. “Major solar energy generating system” has the meaning stated in COMAR 27.01.14.01. “Minor solar energy generating system” has the meaning stated in COMAR 27.01.14.01. “Modified buffer area” has the meaning stated in COMAR 27.01.01.01. “Planting plan” has the meaning stated in COMAR 27.01.14.01. “Project area” has the meaning stated in COMAR 27.01.14.01. “Solar energy generating system” has the meaning stated in COMAR 27.01.14.01. Authority of the Public Service Commission; Applicability. The provisions of this regulation may not be construed to limit the authority of the Public Service Commission under Public Utilities Article, §7-207, Annotated Code of Maryland. The requirements of this regulation are applicable to major and minor solar energy generating systems. General Provisions. A State agency may locate a solar energy generating system constructed or established in the Critical Area in accordance with Regulation .15-1 of this chapter. A State agency may locate a major solar energy generating system in the resource conservation area in accordance with Regulation .15-2 of this chapter. A State agency may locate a solar energy generating system in a modified buffer area if the project is located over existing, legally developed lot coverage as described in Natural Resources Article, §8-1808.3, Annotated Code of Maryland. Except for a regulated activity that is authorized by the Department of the Environment in accordance with COMAR 26.23.02, a State agency may not locate a solar energy generating system: In a habitat protection area designated under COMAR 27.01.09; or On a steep slope or a highly erodible soil.