1. [Means of Transmittal and Form of Communications] Any Contracting Party may choose the means of transmittal of communications and whether it accepts communications on paper, communications in electronic form or any other form of communication.
2. [Language of Communications]
(a) Any Contracting Party may require that any communication be in a language admitted by the Office. Where the Office admits more than one language, the applicant, holder or other interested person may be required to comply with any other language requirement applicable with respect to the Office, provided that no indication or element of the communication may be required to be in more than one language.
(b) No Contracting Party may require the attestation, notarization, authentication, legalization or any other certification of any translation of a communication other than as provided under this Treaty.
(c) Where a Contracting Party does not require a communication to be in a language admitted by its Office, the Office may require that a translation of that communication by an official translator or a representative, into a language admitted by the Office, be supplied within a reasonable time limit.
3. [Signature of Communications on Paper]
(a) Any Contracting Party may require that a communication on paper be signed by the applicant, holder or other interested person. Where a Contracting Party requires a communication on paper to be signed, that Contracting Party shall accept any signature that complies with the requirements prescribed in the Regulations.
(b) No Contracting Party may require the attestation, notarization, authentication, legalization or other certification of any signature except, where the law of the Contracting Party so provides, if the signature concerns the surrender of a registration.
(c) Notwithstanding subparagraph (b), a Contracting Party may require that evidence be filed with the Office where the Office may reasonably doubt the authenticity of any signature of a communication on paper.
4. [Communications Filed in Electronic Form or by Electronic Means of Transmittal] Where a Contracting Party permits the filing of communications in electronic form or by electronic means of transmittal, it may require that any such communications comply with the requirements prescribed in the Regulations.
5. [Presentation of a Communication] Any Contracting Party shall accept the presentation of a communication the content of which corresponds to the relevant Model International Form, if any, provided for in the Regulations.
6. [Prohibition of Other Requirements] No Contracting Party may demand that, in respect of paragraphs (1) to (5), requirements other than those referred to in this Article be complied with.
7. [Means of Communication with Representative] Nothing in this Article regulates the means of communication between an applicant, holder or other interested person and its representative.