Professional Licensure Digital Signing and Sealing

FDOT is now utilizing PKI based digital signatures for signing and sealing electronically produced plan sets and other documents requiring professional signature.

Laws & Rules set by the Florida Board of Professional Engineers in Florida Statutes 471 and as implemented in Florida Administrative Code 61G15-23 allow Florida Professionally Registered Engineers to use digital signature for signing and sealing documents that are delivered electronically. Other professions are directed to their respective Boards of Professional Regulation for rules concerning the use of digital signature. The digital certificates can be purchased from IdenTrust Services, LLC using the links below. Both FDOT staff and consultants can purchase the digital certificates from IdenTrust. Consultants will be responsible for purchasing their own certificates. Signatories may utilize Adobe Acrobat 9 (or newer), Bluebeam 10 (or newer), or other equivalent software as the signing solution to place the seal and digital signature in PDF files and recommend consultants use the same for consistent, predictable and repeatable (CPR) results.

FDOT recognizes the need for entities, citizens, and public employees to interoperate with the department for the purpose of conducting business electronically. The agency will be using IdenTrust Services to provide such persons and entities with X.509 v.3 Digital Certificates. The digital certificates will be managed and controlled by IdenTrust Services as part of the Access Certificates for Electronic Services (ACES) program. IdenTrust Services, LLC will supply Certification Authority (CA) service to entities and citizens located within or desiring to interface with the department in a Public Key Infrastructure (PKI).

  • IdenTrust digital certificates are NIST Level 3 assurance for verifying your identity.
  • IdenTrust digital certificates can support images of signatures or seals and instructions are included under "Related Content" on the right side of this page.
  • IdenTrust digital certificates can be applied using PDF software (purchased separately).

    Please note: ONLY THE SUBSCRIBER OF THE CERTIFICATE SHOULD HAVE EXCLUSIVE USE - THE DIGITAL CERTIFICATE IS YOUR FORM OF IDENTIFICATION, SIMILAR TO YOUR PASSPORT OR DRIVERS LICENSE. Under the GSA Certificate Policy, it is our responsibility as an Authorized Certification Authority to revoke the certificate in a case of loss or disclosure of the private key (Password) to anyone other than the subscriber.

ACES Digital Certificate:

Access Certificates for Electronic Services (ACES)
Business Representative Employee authorized to act on behalf of a company Identity Authentication Digital Signature/Signing
Usage: authenticate yourself as an employee (affiliated) of a valid business when signing emails and documents, and identifying yourself to gain access to restricted web sites.
two years

Unaffiliated Individual Individual representing him/herself Individual Certificates are sold to those who are acting as representatives of themselves, not on behalf of a company.

If you are a sole proprietor and wish to have your identity authenticated independently from your company, more personal information is required, including social security number, credit card number, driver's license number, and home phone number.
two years

How to Trust IdenTrust ACES Root Certificate in Adobe Reader:

Adobe Reader requires one-time trusting of the IdenTrust ACES Root certificate. This can be accomplished by installing the attached .fdf on the computer that is being used. In order to "trust" the IdenTrust ACES Root Certificate, you will need to follow these instructions:

  1. CLICK on the IdenTrust-ACES-CA.fdf file
  2. Click "Set Contact Trust" to add the Certificate to the List of Trusted Identities
  3. Check the box next to:
    1. In Adobe 6 - "Trust Signatures created with this Certificate"
    2. In Adobe 7, 8 - "Trust this Certificate for: Signatures and as a Trusted Root"
    3. In Adobe 9 - Choose the "Use this certificate as a trusted root" checkbox
  4. Check the box next to "Certified documents"
  5. Click "OK" or "Import", click "OK" again, then click "Close"

If you have any questions about the implementation of digital signatures at FDOT, please email FDOT’s Production Support Office | CADD at