Md. Code, Land Use § 24–307

During the term of an agreement:

(1) development may occur in accordance with the law and regulations governing the use, density, or intensity of the real property:

(i) enacted by the district council and administered by the county planning board or county; and

(ii) if applicable, enacted by a reviewing entity and in effect when the project was reviewed and approved by the county planning board and reviewing entity; and

(2) except as provided in § 24–305(c) of this subtitle, changes to the law and regulations described in paragraph (1) of this section enacted after the parties execute an agreement do not apply to development under the agreement.