50-State Engineering Licensing Compliance Guide
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Connecticut Engineering Industry Licensing

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Licensing requirements for engineering industry firms and individuals in Connecticut.

This page provides an overview of engineering industry licensing in Connecticut for individuals and firms. You will find state requirements, application fees, filing instructions, and more. For assistance with licensing, please contact us to learn about our software and managed license services.

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Company Licenses

Connecticut Engineering Company Licenses

Connecticut Certificate of Registration for Engineering Company

Agency:Connecticut Department of Consumer Protection - Occupational and Professional Licensing Division
Law:

Conn. Gen. Stat. §§ 20-299 to 20-310

Eligible Entity Types:
  • Business Corporations
  • Professional Service Corporations
  • Limited Liability Companies
  • Professional Associations
  • Partnerships
Foreign Qualification is Prerequisite:Yes
Ownership Requirements:

Business Corporations:

  • Officers and directors need not be licensed, but the corporation must appoint a Connecticut licensed individual to be responsible for all professional activities undertaken by the firm.

Professional Service Corporations:

  • At least two-thirds of the individual owners of a PC must be individually licensed and must own at least two-thirds of the voting interests.

Limited Liability Companies:

  • At least two-thirds of the individual members of an LLC must be individually licensed and must own at least two-thirds of the voting interests.

Professional Associations:

  • Each member of the association must be a licensed engineer.

Partnerships:

  • All partners must be licensed engineers.

Initial Registration

Form:

Application for Certificate of Registration for Professional Engineering Company

Filing Method:

Mail or online.

Agency Fee:

$565

Turnaround:

Online is immediate with processing or deliberation required for certain issues. Mail-in may take up to 2 weeks.

Notarize:Required
Before you Apply:

Domestic Applicants:

  • Ensure that your business entity will meet ownership requirements.

Foreign Applicants:

  • Ensure that your Connecticut entity meets ownership requirements.
  • Obtain a certificate of good standing from your business entity's home state (to be filed during the foreign qualification process). The certificate cannot be more than 90 days old when filing foreign qualification documents.
How to Apply:

Domestic Applicants:

  1. File entity formation documents with the Connecticut Secretary of State.
  2. Obtain a Certificate of Legal Existence (good standing) from the Connecticut Secretary of State to be filed with the license application.
  3. Submit an Application for Certificate of Registration for Professional Engineering Company to the Connecticut Department of Consumer Protection.

Foreign Applicants:

  1. File a foreign qualification application with the Connecticut Secretary of State.
  2. Submit an Application for Certificate of Registration for Professional Engineering Company to the Connecticut Department of Consumer Protection along with your Connecticut-issued foreign qualification certificate.
Required Attachments:
  • A Certificate of Good Standing issued by the state of incorporation dated not more than 30 days prior to filing the application
  • List of directors, officers, managers or members including address, title, and Connecticut license number (if applicable)
  • List of holders of ownership interest (including license number and ownership interest %)
  • List of the personnel in responsible charge of the engineering or land surveying services provided by the firm (include address, title, and Connecticut license number)

Registration Renewal

Filing Method:

Online

Agency Fee:

$375

Due:

Annually by the day prior to the date of initial registration.

Notes:

Renewal notices are sent 30-45 days prior to expiration by either mail or email.

Required Attachments:
  • List of directors, officers, managers, or members of the firm including addresses
  • List of licensees in responsible charge of the firm's professional services
  • List of holders of voting stock or voting interest showing ownership percentage

Amendment

Form:

Request for Revision of Certificate of Registration for a Corporation

Agency Fee:

$0

Notes:

The amendment form is used to report:

  • Name change
  • Change in Corporate Structure
  • Deletions or Additions of Connecticut Licensees responsible for signing and sealing
  • Changes in ownership
Required Attachments:
  • Attach a Certificate of Good Standing or Authority (the form may also be known as “Certificate of Legal Existence, which is not more than 3 months old. This must be obtained from the Office of the Secretary of State-Certification Unit.
  • If changes in corporate structure or merger, please attach a letter giving a history of this change along with copies of supporting documentation. Please note the ownership requirements for PC and LLCs.

Connecticut Certificate of Registration for Land Surveying Company

Agency:Connecticut Department of Consumer Protection - Occupational and Professional Licensing Division
Law:

Conn. Gen. Stat. §§ 20-299 to 20-310 

Eligible Entity Types:

Connecticut allows land surveying firms to practice under most entity types, including corporations, professional corporations, and LLCs

Ownership Requirements:

At least two-thirds of the individual members of an LLC must be individually licensed and must own at least two-thirds of the voting interests. At least two-thirds of the individual members of a PC must be individually licensed and must own at least two-thirds of the voting interests. Business corporations do not have ownership requirements.

Initial Registration

Form:

Certificate of Registration Application

Agency Fee:

$565

How to Apply:
  1. Secretary of State: Application for Certificate of Authority
  2. Department of Consumer Protection: Application for Certificate of Registration for Professional Land Surveying Company

Registration Renewal

Agency Fee:

$375

Due:

Annually

Connecticut Geology Firm License

Not required



Geoscience Firm licensure is not required on the State level in Connecticut.

Connecticut Joint Practice License

Agency:Connecticut Department of Consumer Protection - Occupational and Professional Licensing Division
Law:

Conn Gen Stat § 20-306b

Eligible Entity Types:
  • Business Corporations
  • Professional Service Corporations
  • Limited Liability Companies
  • Professional Associations
  • Partnerships
Foreign Qualification is Prerequisite:Yes
Ownership Requirements:

Business Corporations:

  • Persons licensed as architects, landscape architects, professional engineers, or land surveyors must own not
    less than 2/3 of the voting stock of the corporation.
  • Each profession must own a minimum of 20% of the voting stock of the
    company.

Professional Service Corporations:

  • Persons licensed as architects, landscape architects, professional engineers, or land surveyors must own not
    less than 2/3 of the voting stock of the corporation.
  • Each profession must own a minimum of 20% of the voting stock of the
    company.

Limited Liability Companies:

  • Persons licensed as architects, landscape architects, professional engineers, or land surveyors must own not
    less than 2/3 of the voting interest of the LLC.
  • Each profession must own a minimum of 20% of the voting interest of the
    company.

Professional Associations:

  • Each member of the association must be a licensed in one of the professions offered by the association.

Partnerships:

  • At least 1/2 of the partners or principals must be licensed architects and each member engaged in the practice of engineering must be licensed.

Initial Registration

Form:

Application for Joint Practice of Architecture, Landscape Architecture, Professional Engineering, & Land Surveying

Filing Method:

Mail or online.

Agency Fee:

$565

Notarize:Required
Before you Apply:

Domestic Applicants:

  • Ensure that your business entity will meet ownership requirements and that the firm has at least one licensed individual to act as the responsible party for each professional service.

Foreign Applicants:

  • Ensure that your Connecticut business entity will meet ownership requirements and that the firm has at least one Connecticut licensed individual to act as the responsible party for each professional service.
  • Obtain a certificate of good standing from your business entity's home state (to be filed during the foreign qualification process). The certificate cannot be more than 90 days old when filing foreign qualification documents.
How to Apply:

Domestic Applicants:

  1. File entity formation documents with the Connecticut Secretary of State.
  2. Obtain a Certificate of Legal Existence (good standing) from the Connecticut Secretary of State to be filed with the license application.
  3. Submit an Application for Architecture Corporation to the Connecticut Architectural Licensing Board.

Foreign Applicants:

  1. File a foreign qualification application with the Connecticut Secretary of State.
  2. Submit an Application for Architecture Corporation to the Connecticut Architectural Licensing Board along with a certificate of good standing from the secretary of state of your entity's home state.
Required Attachments:
  • A Certificate of Good Standing issued by the state of incorporation dated not more than 30 days prior to filing the application
  • List of directors, officers, managers or members including address, title, and Connecticut license number (if applicable)
  • List of holders of voting stock or voting shares (include address, title, and Connecticut license number)
  • List of the personnel in responsible charge of the architectural, engineering, landscape architecture, or land surveying services provided by the firm (include address, title, and Connecticut license number)

Registration Renewal

Filing Method:

Online

Agency Fee:

$375

Due:

Annually by April 30.

Notes:

Renewal notices are sent approximately 30-45 days prior to the expiration date.

Required Attachments:
  • List of directors, officers, managers, or members of the firm including addresses
  • List of licensees in responsible charge of the firm's professional services
  • List of holders of voting stock or voting interest

Individual Licenses

Connecticut Individual Engineering Licenses

Connecticut Combined Professional Engineer and Land Surveyor License

Agency:Connecticut Department of Consumer Protection - Occupational and Professional Licensing Division
Allow Digital Signatures?Yes
Digital Signature Guidelines:

(c) In lieu of a handwritten signature and live seal on paper documents, a licensee shall be permitted to place a digital signature on electronic documents if all of the following criteria are met:

(1) The digital signing process satisfies the requirements of the Digital Signature Standard (“DSS”) established by the National Institute of Standards and Technology. This standard may be obtained at the following website: http://csrc.nist.gov/publications/;

(2) The digital signature keys are unique to the licensee;

(3) The digital signature keys can be verified by a trusted third party or some other approved process as belonging to the licensee;

(4) The private key used for signing electronic documents is under the licensee's direct and exclusive control; and

(5) An electronic document that is altered in any way after being digitally signed fails the verification process.

(6) A licensee may transmit an electronic document without a digital signature provided that any graphical facsimile of the licensee's handwritten signature or stamp does not appear on the document. For cases where the facsimile signature or stamp cannot be erased or removed, a note shall be placed on the document in a prominent location stating that “This shall not be considered a sealed document.”

(d) An electronic document, digitally signed according to the criteria described in subsection (c) of this section, shall be considered “sealed by” or “stamped with a seal of” a licensed surveyor or a licensed professional engineer.

CT Reg. § 20-300-10

Allow Digital Sealing?Yes
Digital Sealing Guidelines:

See digital signing guidelines.

Initial Registration

Form:

Professional Engineer and Land Surveyor License Application

Filing Method:

Mail or online.

Agency Fee:

$80

Registration Renewal

Filing Method:

Online

Agency Fee:

$225

Due:

Annually by January 31. Licenses issued in November and December do not need to be renewed in the first January after their issuance.

Connecticut Engineer-in-Training Certification

Agency:Connecticut Department of Consumer Protection - Occupational and Professional Licensing Division

Initial Registration

Form:

Professional Engineer-in-Training Application

Filing Method:

Mail or online.

Agency Fee:

$76

Renewal Not Required

Not required



A license as an engineer-in-training shall remain valid for a period of ten years from the date upon which the applicant's first such license was issued by any state toward meeting in part the requirements in professional engineering or land surveying.

Connecticut Geologist License

Not required



Professional Geoscientist licensure is not required on the State level in Connecticut.

Connecticut Land Surveyor License

Agency:Connecticut Department of Consumer Protection - Occupational and Professional Licensing Division

Initial Registration

Form:

Land Surveyor License Application

Filing Method:

Mail or online.

Agency Fee:

$80

Registration Renewal

Filing Method:

Online

Agency Fee:

$225

Due:

Annually by January 31. Licenses issued in November and December do not need to be renewed in the first January after their issuance.

Connecticut Land Surveyor-in-Training License

Agency:Connecticut Department of Consumer Protection - Occupational and Professional Licensing Division

Initial Registration

Form:

Land Surveyor-in-Training License Application

Filing Method:

Mail or online.

Agency Fee:

$64

Renewal Not Required

Not required



A license as a surveyor-in-training shall remain valid for a period of ten years from the date upon which the applicant's first such license was issued by any state toward meeting in part the requirements in professional engineering or land surveying.

Connecticut Professional Engineer License

Agency:Connecticut Department of Consumer Protection - Occupational and Professional Licensing Division
Allow Digital Signatures?Yes
Digital Signature Guidelines:

(c) In lieu of a handwritten signature and live seal on paper documents, a licensee shall be permitted to place a digital signature on electronic documents if all of the following criteria are met:

(1) The digital signing process satisfies the requirements of the Digital Signature Standard (“DSS”) established by the National Institute of Standards and Technology. This standard may be obtained at the following website: http://csrc.nist.gov/publications/;

(2) The digital signature keys are unique to the licensee;

(3) The digital signature keys can be verified by a trusted third party or some other approved process as belonging to the licensee;

(4) The private key used for signing electronic documents is under the licensee's direct and exclusive control; and

(5) An electronic document that is altered in any way after being digitally signed fails the verification process.

(6) A licensee may transmit an electronic document without a digital signature provided that any graphical facsimile of the licensee's handwritten signature or stamp does not appear on the document. For cases where the facsimile signature or stamp cannot be erased or removed, a note shall be placed on the document in a prominent location stating that “This shall not be considered a sealed document.”

(d) An electronic document, digitally signed according to the criteria described in subsection (c) of this section, shall be considered “sealed by” or “stamped with a seal of” a licensed surveyor or a licensed professional engineer.

CT Reg. § 20-300-10

Allow Digital Sealing?Yes
Digital Sealing Guidelines:

See digital signing guidelines.

Initial Registration

Form:

Professional Engineer License Application

Filing Method:

Mail or online.

Agency Fee:

$80

Registration Renewal

Filing Method:

Online

Agency Fee:

$285

Due:

Annually by January 31. Licenses issued in November and December do not need to be renewed in the first January after their issuance.

Learn about engineering licensing in other states:

Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho
Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri
Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania
Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming

Design Firm - Engineering firm registration is sometimes grouped with architecture and land surveying on a single “design firm” application form.

EI (Engineering Intern) - A term also used to describe an Engineer in Training.

EIT (Engineer in Training) - A professional designation granted upon having completed at least 3 years of school at an ABET-accredited university and having passed the FE exam.

FE (Fundamentals of Engineering) - An exam testing on basic engineering principles that is required to become an engineer in training.

PE (Professional Engineer or 'Principles and Practice in Engineering') - Means either Professional Engineer or refers to the Principles and Practice in Engineering exam that is a prerequisite for an engineering license.

Reciprocity - When a licensed engineer in one state can provide documentation (often an NCEES Record) to more easily apply for a license in another jurisdiction.

Accreditation Board for Engineering and Technology (ABET)
Accrediting board that sets standards for university programs in a variety of applied science disciplines.

American Council of Engineering Companies (ACEC)
Engineering, architecture, and land surveying advocacy group.

American Society of Civil Engineers (ASCE)
Organization that provides continuing education, professional conferences, and advocacy efforts to the civil engineering community.

American Society of Mechanical Engineers (ASME)
Mechanical engineering organization that focuses on education and professional development.

Engineering Accreditation Commission (EAC)
Reviews accreditation requirements and makes final decisions regarding the accreditation process.

National Council of Examiners for Engineering & Surveying (NCEES)
Develops, administers, and scores the exams used for engineering licenses.

National Society of Professional Engineers (NSPE)
NSPE is an advocacy group for professional engineers.

Revised October 18, 2021. Complete data last reviewed July 03, 2018.
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