Contact Us

Thank you for your interest in contacting Sustainable Maryland.

General Information

You can also call us during our normal business hours Monday–Friday 9:00 a.m.– 5:00 p.m. at 301-405-7956.

To report a problem with the website or for general inquiries, contact Mike Hunninghake at

If you have a question about the certification program call 301-405-7956 or email


Media Inquiries

If you are a member of the media and are looking for information or would like to contact our public relations staff, visit our Media and Publications page and/or call 301-405-7956 or email

Mailing Address

If you would like to send something to Sustainable Maryland via Mail, Fed Ex, UPS or other service, please use the following address:

Sustainable Maryland
C/o Environmental Finance Center
7480 Preinkert Drive
College Park, MD 20742