There are two types of electronic signature: (i) standard e-signature ("SES"); and (ii) advanced e-signature ("AES").

Requirements of an AES:

  1. it is uniquely linked to the signatory;
  2. it is capable of identifying the signatory;
  3. it is created using means that are under the signatory’s sole control; and
  4. it is linked to other electronic data in such a way that any alteration to the said data can be detected.

AES can only be provided by a provider certified by the relevant authorities.

E-signatures are not permitted to be used for documents which require notarization, for example for any of the following: 

  • Real estate property transfer contracts and deeds;
  • inheritance contracts;
  • granting powers of attorney;
  • articles of incorporation for civil/mercantile companies;
  • promissory notes and guarantees; and
  • mortgage or guarantor agreements.

As a general rule, all documents containing rights and obligations must be kept for 10 years from the date of their validity. This includes electronic documents, which can be stored electronically.

In accordance with article 13 of the Advanced Electronic Signature Act ("AESA"), each unit and entity will create and administer an electronic transaction system to establish access control, backups and information retrieval, with security mechanisms, availability, integrity, authenticity, confidentiality and custody.

4. Main and relevant court practices

AES have the same evidentiary properties as regular signatures. Article 7 of the AESA states that electronic documents and data messages with AES will have the same effects as those presented with an autograph signature. 

5. In which cases are documents only with wet ink signatures accepted?

  1. Real estate property transfer contracts and; 
  2. Inheritance/probate contracts;
  3. Documents granting powers of attorney; and 
  4. Articles of incorporation for civil/mercantile companies.

6. List of the relevant national legislation

  1. Advanced E-signature Law and its Regulation;
  2. Federal Commerce Code; and
  3. Federal Civil Code.

Many states have also enacted their own e-signature laws in addition to the Federal laws noted above.

7.1 Remarks/Comments to use cases (if yes/no answer is not sufficient)

The Yes/No requirement depends greatly on the nature of the document. A standard electronic signature may, legally, be sufficient but contrary to industry practices and / or viewed unfavourably by a judge.