District of Columbia

Licensing (PV)
Electrical contractors are required to hold an electrician’s license. Building permits are required for installations.

Applicants for master and journeyman licenses are required to pass an examination prior to licensure.

Licensing (Solar thermal)
Plumbers/gasfitters are required to hold a plumbers/gasfitters license and refrigeration and air conditioning mechanics contractors are required to hold a mechanical license. Building permits are required for installations.

Electric code: Installations must conform to the 2005 National Electrical Code.

Reciprocity: None

Resources: District of Columbia Department of Consumer and Regulatory Affairs



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