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Electrical Permits

When is an Electrical Permit Required?

A Electrical Permit is required for work that involves installing, relocating, repairing, or maintaining any electrical wiring or device designed for conducting, consuming or converting electrical current.

How is an Electrical Permit Obtained and Who may Apply for these Permits?

Anyone may apply for an electrical permit. However, the application must be signed by a master electrician who is licensed in Montgomery County. Homeowners who intend to do their own electrical work, and meet the criteria for doing so, may take a test to obtain a permit (see: Homeowners Electrical Exam.)

What is the Cost?

The minimum processing fee for residential installations is $90.00 and the minimum processing fee for commercial installations is $150.00. The total fee will be the sum of the processing fee plus the price of the items/work which is printed on the back application, plus a 5% automation enhancement fee assessed to the sum of the processing fee and items/work prices. 

What is the Application Process?

Electricians or their authorized representatives may apply in person or by mail. We must have on file the signatures of all Electricians and Authorized Agents.

The application will be checked for the following:

  • Completeness
  • Valid and current business and master’s license numbers
  • Up-to-date insurance certificate
  • Outstanding Notices of Violation for the premise (outstanding fines will collected with the permit fee)
  • Building permit (if required for the work being done), has been issued prior to the electrical permit application
  • Site plans, as appropriate, showing approval for zoning setbacks

If all conditions are met:

  • Fees are calculated and collected
  • A receipt is issued
  • A permit number is assigned
  • The permit is issued while the customer waits


  1. All plans must be signed and sealed by a Maryland Licensed Professional Engineer; 
  2. Power riser diagram, including wiring method type, feeder sizes proper grounding and
    bonding jumper sizes, including over-current protection device, size and rating;
  3. Fire alarm riser diagram, descriptive notes, annunciator panel and control panel if applicable;
  4. Symbols list, lighting and panel schedules;
  5. Reflective ceiling plan, including show window and track lighting;
  6. Power plan showing the floor layout and electrical equipment location;
  7. Working clearances for the electrical equipment in accordance with Article 110, Part II;
  8. Demand load calculations, including existing loads added to new additions;
  9. Fire pumps, if applicable, include size and source of supply, full load current rating of the
    fire pump motor and AIC rating of the motor and transfer switch.
  10. Emergency distribution equipment, include transfer equipment and panel locations.

Certification of modified drawings. (Click here)

Plan submittal changes which result from the suspension of a plan review must include a "Certification Of Modified Drawings". The design professional(s) responsible for the design of the project shall review all the changes from each of the disciplines and certify that the resubmitted design documents prepared under their license did, or did not, require modification as a result of any changes made.

How Long will the Process Take?

Walk-in transactions usually take no more than ten minutes per applicant. Mail-in applications are usually processed within two work days.

Application Package
Electrical Application Application for Electrical Permit
Home Owner Electrical Application Home Owner's Electrical Exam
Fees and Taxes
Fees Executive Regulations
Automation Fee Automation Enhancement Fee
Credit Card Authorization Form Credit Card Authorization Form
None at This Time General Bond Information
Codes, Standards, Executive Regulations
National Electrical Code NFPA National Electrical Code / 2008
Montgomery County Code Chapter 17 Montgomery County Code
Guidelines, Memorandum of Understandings, Interpretations
Permit Guidelines for Photovoltaic Systems Permit Guidelines for Photovoltaic Systems
Inspection Requirements
Residential Inspections Residential Inspections
Commercial Inspections Commercial Electrical Inspections
Residential Photovoltaic Systems Residential Photovoltaic Systems Installation Certification
Residential Generator Load Calculations Residential Generator Load Calculation Certificate
Frequently Asked Questions
311 Web Portal: Enter key word "Electical"
Online Permitting Status Information and Inspections
Online Data Search Search DPS
Call for More Information
In Montgomery County 311
Outside of Montgomery County 240-777-0311
Other Agencies to Contact
Other Agencies and Utilities to Contact Allegheny Power
  American Institute of Architects (AIA)
  American National Standards Institute (ANSI)
  American Society of Heating, Refrigerating & Air Conditioning Engineers (ASHRAE)
  Baltimore Gas & Electric Co. (BG&E)
  Board of Appeals
  Historical Preservation
  International Code Council (ICC)
  Maryland Department of Assessments and Taxation
  Maryland Department of the Environment
  Maryland Division of State Documents
  Masonry Institute of America (MIA)
  Miss Utility
  National Glass Association (NGA)
  MNCPPC: Historic Area Work Permits
  MNCPPC: MC Atlas
  MNCPPC: Zoning
  National Fire Protection Association (NFPA)
  Potomac Electric Power Company (PEPCO)
  U.S. Department of Energy (DOE) by Pacific Northwest National Laboratory (PNNL)
  Washington Gas Light Co.