302-323-4588 office@dape.org

Firm Applicants

Requirements to Apply

An Engineering corporation or partnership must have an active Certificate of Authorization in order to practice or offer to practice engineering in Delaware.

To receive a certificate, firms are required to:

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    Complete an online application below. If you are reapplying, please contact us before starting a new application.

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    Pay the application fee of $200

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    Provide your firms Federal Identification number

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    Provide names and addresses of all officers and board members

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    Provide a Delaware business license or letter of exemption issued by the Delaware Division of Revenue using the short questionnaire to determine if you need a business license. If you answer “No” to all 4 questions, follow the instructions on the questionnaire to obtain a Letter of Exemption from the Division of Revenue. If you answer “yes” to any of the questions, apply for a Delaware business license here.

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    Upload a signed and sealed affidavit (a custom affidavit will be generated during the application process). 

    Refer to Sections 2821 & 2825 of the Delaware Professional Engineers’ Act for more information.