Montgomery County's Benchmarking Law requires public and privately-owned buildings 25,000 gross square feet and larger to benchmark their annual energy use into ENERGY STAR's Portfolio Manager and disclose those data to the County by June 1st annually. To learn more about the benchmarking law and requirements, please click on the first link below.

Online users who have additional questions, and would like to speak with a DEP specialist, please see the topic entitled: "Request to Speak to a DEP Specialist about Building Energy Benchmarking" or click on the third link below.