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.
Permits applications and information may be obtained from the permit division at www.dcra.dc.gov.
Applications, instructions, and forms for electricians, operating engineers, plumbers/gasfitters, and refrigeration & air conditioning mechanics can be downloaded from the Board of Industrial Trades website at http://www.pearsonvue.com/dc/industrial_trades/.
Electric code: Installations must conform to the 2005 National Electrical Code.