Md. Code, Environment § 9–204.1

The Secretary may not issue a permit to install, materially alter, or materially extend an incinerator for disposal of a solid waste stream, as defined in § 9-1701 of this title, unless the county where the proposed incinerator is to be installed, materially altered, or materially extended has a recycling plan submitted and approved in accordance with § 9-505 of this title.