On February 2, 2018, the Maryland Department of the Environment (MDE) published the final revisions to Maryland's distributed generation regulations codified in Title 26, Subtitle 11, Chapter 36 of the Code of Maryland Regulations (COMAR 26.11.36) in the Maryland Register. The changes align Maryland's definitions of "emergency engine" and "nonemergency engine" with federal regulations and repeals state-only emissions requirements for engines. The updated regulations are effective as of February 12, 2018.

The engines most impacted by this regulatory update are engines that participate in emergency demand response programs. Under the old Maryland regulations, these units were classified as emergency generators. However, under the updated regulations, these units are now classified as non-emergency generators under Maryland regulations in addition to under the federal regulations. With this change, any generator participating in emergency demand response will now be required to obtain a Permit to Construct, regardless of unit size.

For more information on the updates to the regulations refer to:

If you need assistance in determining how these changes will impact your facility or in preparing an engine permit to construct application, please contact Trinity's office in Frederick, Maryland at (240) 379-7490.