Contractors Registration

Learn about special registration and certifications required for Construction Contractors.

In addition to registering and licensing your business with the Division of Revenue and reporting hiring with the Department of Labor, Delaware State law requires businesses who perform "Construction Services" to also be registered with the Delaware Department of Labor's, Office of Contractor Registration BEFORE their work begins in the State. For additional details around the Delaware State law please access the following links: Delaware Contractor Registration Act and Delaware Workplace Fraud Act.

To review what you need before starting the applications please review the following checklist: Delaware Contractor Registration Checklist.

Frequently Asked Questions

All fees are non-refundable.

For a one year registration:

  • $200.00 if you perform Private Construction
  • $300.00 if you perform Public Construction
  • $500.00 if you perform Public and Private Construction

For a two year registration:

This option is only available to contractors who meet the following criteria:

  1. Must have been continuously registered for the last two consecutive years
  2. Renewal application must be received timely prior to expiration date
  3. No prior violations of State or Federal Labor Laws
    • $300.00 if you perform Private Construction
    • $500.00 if you perform Public Construction

Please have the following items ready the for the registration process:

  • FEIN / ITIN or full social security number(s) for Limited Liability Corporations
  • NAICS Code(s)
  • Full business name, address, telephone facsimile and email address
  • Name Business Type (i.e. Corporation, Limited Liability Corporation, etc.)
  • Out of State Business must provide full contact information for custodian of records Delaware registered agent
  • Contact information for each person with financial interest in business
  • Delaware Business License and Number
  • Workers Compensation Policy coverage for Delaware
  • Policy number
  • Digital Copy
  • Delaware Unemployment Insurance SUI number
  • Safety Plan compliant with Occupational Safety and Health Administration (OSHA) or evidence you are creating a compliant plan
  • Listing of any Labor Law violations or Fraud that occurred in last two (2) years. Will need to provide the dates and outcome of each violations (ie. Settlement, Compliance, fines/penalties, and/or court decisions)
  • Valid Credit Card for Payment (online) or check for paper registration form

Delaware’s Contractor Registration Act 19 Del.C. Chapter 36 requires all businesses who do construction services and/or maintenance in Delaware must register with the Delaware Department of Labor.

Fees for registration are based upon the type or types of work you do under the Act.

"Public Works" are projects that are under the jurisdiction of Delaware’s Prevailing Wage Law 29 Del.C. §6960. These projects are financed by Delaware State and/or Federal agencies and include public buildings (municipal buildings, hospitals, schools) transport infrastructure (roads, railroads, bridges, pipelines, canals, ports, airports) public services (water supply and treatment, sewage treatment, electrical grids, dams) etc.

"Private Work" is all other construction services or maintenance work being performed in the State of Delaware that are owned, controlled, or commissioned by a private party. Private parties include individuals, homeowners, other business entities, nonprofit associations, privately funded schools, hospitals, publicly traded companies, etc.

Delaware Office of Worker's Compensation

Delaware law, with limited exceptions, requires all employers to secure workers' compensation insurance to cover all their full-time, part-time, seasonal or occasional employees prior to hiring and working in the State.

If you have any questions on these requirements, please contact the Departments Office of Worker's Compensation at 302-761-8200.

Delaware Office of Unemployment Insurance

State and Federal Law requires employers to provide unemployment insurance coverage for their workers if they meet certain criteria. To find out if your business needs to register with the Office of Unemployment Insurance call 302-761-6576 for New Castle County or 800-794-3232 for Kent/ Sussex Counties.

Delaware Office of Safety & Health (OSHA Consultation)

Delaware State law requires those who perform construction services to have a Safety Plan that is compliant with OSHA. If you do not have a plan, please contact 302-761-8200.

After the Delaware Office of Contractor Registration receives a fully completed application and the corresponding fee, and assuming that there are no outstanding issues or violations, the Office of Contractor Registration will issue a Certificate of Registration.

Email: If you filed online, the certificate will be emailed to the business email address.

By Mail: If you submitted your application by mail, the certificate will be mailed to the mailing address provided on the application.

If you submitted your application online, you can check the status of your application from your account.

If you submitted by mail please reach out to the Office of Contractor Registration at 302-430-7739 or

You can find construction contractors who are compliant with Delaware’s Contractor Registration Act at:

To learn more about Contractor Registration please contact the Delaware Department of Labor, Office of Contractor Registration at 302-430-7739 or

NAICS codes

Code Industry title
238220 Air system balancing and testing
238290 Elevators
237310 Paving
562910 Asbestos Removal
238910 Excavation
237120 Pipeline Construction
238910 Boring
238990 Fencing
238220 Plumbing
238140 Brick and Block
238330 Flooring/Tile
238220 Refrigeration
237990 Bulkheads & Docks
236220 General Construction
238160 Roofing
238350 Carpentry (general)
237310 Road and Heavy Highway
237110 Sewer Piping & Storm Drains
238330 Carpeting
484110 Hauling
238221 Sheet Metal (Mechanical)
238390 Caulking & Water Proofing
238220 HVAC
238220 Sprinkler Systems
238110 Concrete
238130 Iron and Steel Fabrications
517110 Telecommunications
213112 Core Drilling
238310 Insulation/Mechanical
238210 Traffic Signals
238910 Demolition
561720 Janitorial Services
562211 Waste Removal,Toxic/Hazardous
561990 Diving
541320 Landscape Construction
238190 Welding
237990 Dredging
238220 Mechanical Construction
213111 Well Drilling
238210 Electrical
238320 Painting