Architects are increasingly using new technologies in their daily work, and the documents they produce remain subject to high standards of reliability. Architects who wish to produce legally reliable digital documents in compliance with the NWTAA requirements can now accomplish this task with CertifiO for Professionals – the NWTAA's Digital Signature.

NOTE: Digital Signatures are not to be confused with an electronic impression (scanned image) of a physical stamp.

The NWTAA Digital Signature issued to NWTAA authorized practitioners is provided through Notarius.


Notarius provides the framework and platform to allow its 45+ partners to issue trusted Digital Signatures to their members. NWTAA has joined OAA, AIBC, AAA, MAA, SAA, OAQ and AANB in partnering with Notarius to be the exclusive issuer of a Digital Signature.

Architects who wish to avail themselves of the NWTAA Digital Signature will begin the process of creating electronic originals and authenticate final document using proven technology solutions that meet NWTAA and government standards and archiving best practices for electronic documents.

Features and Benefits

The NWTAA Digital Signature affixed to a document by an architect:

  • guarantees the identity of the document. The origin of the document includes proof of the signer’s identity, the NWTAA professional affiliation (at the time of the signature) as well as the date and time of the document’s finalization;

  • ensures the integrity of the document (as well as its data contents), so that the document cannot be altered once it is sealed; and

  • establishes the authenticity of the document. The authenticity implies that everything necessary to prove its origin and integrity is embedded in the document.

The NWTAA Digital Signature must remain under the sole control of its holder. It cannot be shared nor delegated under any circumstances.

Understanding Digital Signatures

  • What is an electronic document?
    An electronic document is a document carried by electronic, logical and visual media.
  • What is a digital signature?
    It is the affixing of a digital signature certificate that cryptographically secures an electronic file, thus proving the origin, the authenticity of the signer, and confirm the integrity of the signed document.
  • What is a digital signature certificate?
    It is a computer artefact issued and cryptographically protected by a Certificate Authority (Notarius) attesting to the veracity of the information declared in the certificate. This information may include their full name, email address, professional title, membership number, public key, and the validity period and serial number of their certificate.
Get Your Digital Signature Today

To obtain your NWTAA digital signature, please visit


Additional Resources


For more information about the NWTAA Digital Signature, contact the NWTAA office.

For more information about about digital signatures or the reception of digitally signed documents, please contact Olivier Jaar, Business Solutions Director at Notarius.

For technical assistance, please please contact Notarius Customer support:
[email protected]