Below you will find a comprehensive list of licenses and certificates issued by DPS. 

Electrical and mechanical applications should be submitted via DPS eServices. Commercial mechanical applications should be emailed to 
DPS.Electrical-Mechanical@MontgomeryCountyMD.gov.

Vendor license applications (with signed affidavits and supporting documents) should be emailed to DPS.Vendor-License@MontgomeryCountyMD.gov .