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Filing Date

(1)

[Elements of Application]

(a)

Except as otherwise prescribed in the Regulations, and subject to paragraphs (2) to (8) , a Contracting Party shall provide that the filing date of an application shall be the date on which its Office has received all of the following elements, filed, at the option of the applicant, on paper or as otherwise permitted by the Office for the purposes of the filing date:

(i)

an express or implicit indication to the effect that the elements are intended to be an application;

(ii)

indications allowing the identity of the applicant to be established or allowing the applicant to be contacted by the Office;

(iii) a part which on the face of it appears to be a description.

(b)

A Contracting Party may, for the purposes of the filing date, accept a drawing as the element referred to in subparagraph (a)(iii) .

(c)

For the purposes of the filing date, a Contracting Party may require both information allowing the identity of the applicant to be established and information allowing the applicant to be contacted by the Office, or it may accept evidence allowing the identity of the applicant to be established or allowing the applicant to be contacted by the Office, as the element referred to in subparagraph (a)(ii) .

(2)

[Language]

(a)

A Contracting Party may require that the indications referred to in paragraph (1)(a)(i) and (ii) be in a language accepted by the Office.

(b)

The part referred to in paragraph (1)(a)(iii) may, for the purposes of the filing date, be filed in any language.

(3)

[Notification] Where the application does not comply with one or more of the requirements applied by the Contracting Party under paragraphs (1) and (2) , the Office shall, as soon as practicable, notify the applicant, giving the opportunity to comply with any such requirement, and to make observations, within the time limit prescribed in the Regulations.

(4)

[Subsequent Compliance with Requirements]

(a)

Where one or more of the requirements applied by the Contracting Party under paragraphs (1) and (2) are not complied with in the application as initially filed, the filing date shall, subject to subparagraph (b) and paragraph (6) , be the date on which all of the requirements applied by the Contracting Party under paragraphs (1) and (2) are subsequently complied with.

(b)

A Contracting Party may provide that, where one or more of the requirements referred to in subparagraph (a) are not complied with within the time limit prescribed in the Regulations, the application shall be deemed not to have been filed. Where the application is deemed not to have been filed, the Office shall notify the applicant accordingly, indicating the reasons therefor.

(5)

[Notification Concerning Missing Part of Description or Drawing] Where, in establishing the filing date, the Office finds that a part of the description appears to be missing from the application, or that the application refers to a drawing which appears to be missing from the application, the Office shall promptly notify the applicant accordingly.

(6)

[Filing Date Where Missing Part of Description or Drawing Is Filed]

(a)

Where a missing part of the description or a missing drawing is filed with the Office within the time limit prescribed in the Regulations, that part of the description or drawing shall be included in the application, and, subject to subparagraphs (b) and (c) , the filing date shall be the date on which the Office has received that part of the description or that drawing, or the date on which all of the requirements applied by the Contracting Party under paragraphs (1) and (2) are complied with, whichever is later.

(b)

Where the missing part of the description or the missing drawing is filed under subparagraph (a) to rectify its omission from an application which, at the date on which one or more elements referred to in paragraph (1)(a) were first received by the Office, claims the priority of an earlier application, the filing date shall, upon the request of the applicant filed within a time limit prescribed in the Regulations, and subject to the requirements prescribed in the Regulations, be the date on which all the requirements applied by the Contracting Party under paragraphs (1) and (2) are complied with.

(c)

Where the missing part of the description or the missing drawing filed under subparagraph (a) is withdrawn within a time limit fixed by the Contracting Party, the filing date shall be the date on which the requirements applied by the Contracting Party under paragraphs (1) and (2) are complied with.

(7)

[Replacing Description and Drawings by Reference to a Previously Filed Application]

(a)

Subject to the requirements prescribed in the Regulations, a reference, made upon the filing of the application, in a language accepted by the Office, to a previously filed application shall, for the purposes of the filing date of the application, replace the description and any drawings.

(b)

Where the requirements referred to in subparagraph (a) are not complied with, the application may be deemed not to have been filed. Where the application is deemed not to have been filed, the Office shall notify the applicant accordingly, indicating the reasons therefor.

(8)

[Exceptions] Nothing in this Article shall limit:

(i)

the right of an applicant under Article 4G(1) or (2) of the Paris Convention to preserve, as the date of a divisional application referred to in that Article, the date of the initial application referred to in that Article and the benefit of the right of priority, if any;

(ii)

the freedom of a Contracting Party to apply any requirements necessary to accord the benefit of the filing date of an earlier application to an application of any type prescribed in the Regul ations.

Article 6

Application

(1)

[Form or Contents of Application] Except where otherwise provided for by this Treaty, no Contracting Party shall require compliance with any requirement relating to the form or contents of an app lication different from or additional to:

(i)

the requirements relating to form or contents which are provided for in respect of international applications under the Patent Cooperation Treaty;

(ii)

the requirements relating to form or contents compliance with which, under the Patent Cooperation Treaty, may be required by the Office of, or acting for, any State party to that Treaty once the processing or examination of an international application, as referred to in Article 23 or 40 of the said Treaty, has started;

(iii) any further requirements prescribed in the Regulations.

(2)

[Request Form]

(a)

A Contracting Party may require that the contents of an application which correspond to the contents of the request of an international application under the Patent Cooperation Treaty be presented on a request Form prescribed by that Contracting Party. A Contracting Party may also require that any further contents allowed under paragraph (1)(ii) or prescribed in the Regulations pursuant to paragraph (1)(iii) be contained in that request Form.

(b)

Notwithstanding subparagraph (a) , and subject to Article 8(1) , a Contracting Party shall accept the presentation of the contents referred to in subparagraph (a) on a request Form provided for in the Regulations.

(3)

[Translation] A Contracting Party may require a translation of any part of the application that is not in a language accepted by its Office. A Contracting Party may also require a translation of the parts of the application, as prescribed in the Regulations, that are in a language accepted by the Office, into any other languages accepted by that Office.

(4)

[Fees] A Contracting Party may require that fees be paid in respect of the application. A Contracting Party may apply the provisions of the Patent Cooperation Treaty relating to payment of application fees.

(5)

[Priority Document] Where the priority of an earlier application is claimed, a Contracting Party may require that a copy of the earlier application, and a translation where the earlier application is not in a language accepted by the Office, be filed in accordance with the requirements prescribed in the Regulations.

(6)

[Evidence] A Contracting Party may require that evidence in respect of any matter referred to in paragraph (1) or (2) or in a declaration of priority, or any translation referred to in paragraph (3) or (5) , be filed with its Office in the course of the processing of the application only where that Office may reasonably doubt the veracity of that matter or the accuracy of that translation.

(7)

[Notification] Where one or more of the requirements applied by the Contracting Party under paragraphs (1) to (6) are not complied with, the Office shall notify the applicant, giving the opportunity to comply with any such requirement, and to make observations, within the time limit prescr ibed in the Regulations.

(8)

[Non-Compliance with Requirements]

(a)

Where one or more of the requirements applied by the Contracting Party under paragraphs (1) to (6) are not complied with within the time limit prescribed in the Regulations, the Contracting Party may, subject to subparagraph (b) and Articles 5 and 10 , apply such sanction as is provided for in its law.

(b)

Where any requirement applied by the Contracting Party under paragraph (1) ,

(5)

or (6) in respect of a priority claim is not complied with within the time limit prescribed in the Regulations, the priority claim may, subject to Article 13 , be deemed non-existent. Subject to Article 5(7)(b) , no other sanctions may be applied.

Article 7

Representation

(1)

[Representatives]

(a)

A Contracting Party may require that a representative appointed for the purposes of any procedure before the Office:

(i)

have the right, under the applicable law, to practice before the Office in respect of applications and patents;

(ii)

provide, as his address, an address on a territory prescribed by the Contracting Party.

(b)

Subject to subparagraph (c) , an act, with respect to any procedure before the Office, by or in relation to a representative who complies with the requirements applied by the Contracting Party under subparagraph (a) , shall have the effect of an act by or in relation to the applicant, owner or other interested person who appointed that representative.

(c)

A Contracting Party may provide that, in the case of an oath or declaration or the revocation of a power of attorney, the signature of a representative shall not have the effect of the signature of the applicant, owner or other interested person who appointed that representative.

(2)

[Mandatory Representation]

(a)

A Contracting Party may require that an applicant, owner or other interested person appoint a representative for the purposes of any procedure before the Office, except that an assignee of an application, an applicant, owner or other interested person may act himself before the Office for the following procedures:

(i)

the filing of an application for the purposes of the filing date;

(ii)

the mere payment of a fee;

(iii) any other procedure as prescribed in the Regulations;

(iv)

the issue of a receipt or notification by the Office in respect of any procedure referred to in items (i) to (iii) .

(b)

A maintenance fee may be paid by any person.

(3)

[Appointment of Representative] A Contracting Party shall accept that the appointment of the representative be filed with the Office in a manner prescribed in the Regulations.

(4)

[Prohibition of Other Requirements] No Contracting Party may require that formal requirements other than those referred to in paragraphs (1) to (3) be complied with in respect of the matters dealt with in those paragraphs, except where otherwise provided for by this Treaty or prescribed in the Regulations.

(5)

[Notification] Where one or more of the requirements applied by the Contracting Party under paragraphs (1) to (3) are not complied with, the Office shall notify the assignee of the application, applicant, owner or other interested person, giving the opportunity to comply with any such requirement, and to make observations, within the time limit prescribed in the Regulations.

(6)

[Non-Compliance with Requirements] Where one or more of the requirements applied by the Contracting Party under paragraphs (1) to (3) are not complied with within the time limit prescribed in the Regulations, the Contracting Party may apply such sanction as is provided for in its law.

Article 8

Communications; Addresses

(1)

[Form and Means of Transmittal of Communications]

(a)

Except for the establishment of a filing date under Article 5(1) , and subject to Article 6(1) , the Regulations shall, subject to subparagraphs (b) to (d) , set out the requirements which a Contracting Party shall be permitted to apply as regards the form and means of transmittal of communications.

(b)

No Contracting Party shall be obliged to accept the filing of communications other than on paper.

(c)

No Contracting Party shall be obliged to exclude the filing of communications on paper.

(d)

A Contracting Party shall accept the filing of communications on paper for the purpose of complying with a time limit.

(2)

[Language of Communications] A Contracting Party may, except where otherwise provided for by this Treaty or the Regulations, require that a communication be in a language accepted by the Office.

(3)

[Model International Forms] Notwithstanding paragraph (1)(a) , and subject to paragraph (1)(b) and Article 6(2)(b) , a Contracting Party shall accept the presentation of the contents of a communication on a Form which corresponds to a Model International Form in respect of such a communication provided for in the Regulations, if any.

(4)

[Signature of Communications]

(a)

Where a Contracting Party requires a signature for the purposes of any communication, 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 which is communicated to its Office, except in respect of any quasi-judicial proceedings or as prescribed in the Regulations.

(c)

Subject to subparagraph (b) , a Contracting Party may require that evidence be filed with the Office only where the Office may reasonably doubt the authenticity of any signature.

(5)

[Indications in Communications] A Contracting Party may require that any communication contain one or more indications prescribed in the Regulations.

(6)

[Address for Correspondence, Address for Legal Service and Other Address] A Contracting Party may, subject to any provisions prescribed in the Regulations, require that an applicant, owner or other interested person indicate in any communication:

(i)

an address for correspondence;

(ii)

an address for legal service;

(iii) any other address provided for in the Regulations.

(7)

[Notification] Where one or more of the requirements applied by the Contracting Party under paragraphs (1) to (6) are not complied with in respect of communications, the Office shall notify the applicant, owner or other interested person, giving the opportunity to comply with any such requirement, and to make observations, within the time limit prescribed in the Regulations.

(8)

[Non-Compliance with Requirements] Where one or more of the requirements applied by the Contracting Party under paragraphs (1) to (6) are not complied with within the time limit prescribed in the Regulations, the Contracting Party may, subject to Articles 5 and 10 and to any exceptions prescribed in the Regulations, apply such sanction as is provided for in its law.

Article 9

Notifications

(1)

[Sufficient Notification] Any notification under this Treaty or the Regulations which is sent by the Office to an address for correspondence or address for legal service indicated under Article 8(6) , or any other address provided for in the Regulations for the purpose of this provision, and which complies with the provisions with respect to that notification, shall constitute a sufficient notification for the purposes of this Treaty and the Regulations.

(2)

[If Indications Allowing Contact Were Not Filed] Nothing in this Treaty and in the Regulations shall oblige a Contracting Party to send a notification to an applicant, owner or other interested person, if indications allowing that applicant, owner or other interested person to be contacted have not been filed with the Office.

(3)

[Failure to Notify] Subject to Article 10(1) , where an Office does not notify an applicant, owner or other interested person of a failure to comply with any requirement under this Treaty or the Regulations, that absence of notification does not relieve that applicant, owner or other interested person of the obligation to comply with that requirement.

Article 10

Validity of Patent; Revocation

(1)

[Validity of Patent Not Affected by Non-Compliance with Certain Formal Requirements] Non-compliance with one or more of the formal requirements referred to in Articles 6(1) , (2) , (4) and (5) and 8(1) to (4) with respect to an application may not be a ground for revocation or invalidation of a patent, either totally or in part, except where the non-compliance with the formal requirement occurred as a result of a fraudulent intention.

(2)

[Opportunity to Make Observations, Amendments or Corrections in Case of Intended Revocation or Invalidation] A patent may not be revoked or invalidated, either totally or in part, without the owner being given the opportunity to make observations on the intended revocation or invalidation, and to make amendments and corrections where permitted under the applicable law, within a reasonable time limit.

(3)

[No Obligation for Special Procedures] Paragraphs (1) and (2) do not create any obligation to put in place judicial procedures for the enforcement of patent rights distinct from those for the enforcement of law in general.

Article 11

Relief in Respect of Time Limits

(1)

[Extension of Time Limits] A Contracting Party may provide for the extension, for the period prescribed in the Regulations, of a time limit fixed by the Office for an action in a procedure before the Office in respect of an application or a patent, if a request to that effect is made to the Office in accordance with the requirements prescribed in the Regulations, and the request is filed, at the option of the Contracting Party:

(i)

prior to the expiration of the time limit; or

(ii)

after the expiration of the time limit, and within the time limit prescribed in the Regulations.

(2)

[Continued Processing] Where an applicant or owner has failed to comply with a time limit fixed by the Office of a Contracting Party for an action in a procedure before the Office in respect of an application or a patent, and that Contracting Party does not provide for extension of a time limit under paragraph (1)(ii) , the Contracting Party shall provide for continued processing with respect to the application or patent and, if necessary, reinstatement of the rights of the applicant or owner with respect to that application or patent, if:

(i)

a request to that effect is made to the Office in accordance with the requirements prescribed in the Regulations;

(ii)

the request is filed, and all of the requirements in respect of which the time limit for the action concerned applied are complied with, within the time limit prescribed in the Regulations.

(3)

[Exceptions] No Contracting Party shall be required to provide for the relief referred to in paragraph (1) or (2) with respect to the exceptions prescribed in the Regulations.

(4)

[Fees] A Contracting Party may require that a fee be paid in respect of a request under paragraph (1) or (2) .

(5)

[Prohibition of Other Requirements] No Contracting Party may require that requirements other than those referred to in paragraphs (1) to (4) be complied with in respect of the relief provided for under paragraph (1) or (2) , except where otherwise provided for by this Treaty or prescribed in the Regulations.

(6)

[Opportunity to Make Observations in Case of Intended Refusal] A request under paragraph (1) or (2) may not be refused without the applicant or owner being given the opportunity to make observations on the intended refusal within a reasonable time limit.

Article 12

Reinstatement of Rights After a Finding of Due Care or Unintentionality by the Office

(1)

[Request] A Contracting Party shall provide that, where an applicant or owner has failed to comply with a time limit for an action in a procedure before the Office, and that failure has the direct consequence of causing a loss of rights with respect to an application or patent, the Office shall reinstate the rights of the applicant or owner with respect to the application or patent concerned, if:

(i)

a request to that effect is made to the Office in accordance with the requirements prescribed in the Regulations;

(ii)

the request is filed, and all of the requirements in respect of which the time limit for the said action applied are complied with, within the time limit prescribed in the Regulations;

(iii) the request states the reasons for the failure to comply with the time limit; and

(iv)

the Office finds that the failure to comply with the time limit occurred in spite of due care required by the circumstances having been taken or, at the option of the Contracting Party, that any delay was unintentional.

(2)

[Exceptions] No Contracting Party shall be required to provide for the reinstatement of rights under paragraph (1) with respect to the exceptions prescribed in the Regulations.

(3)

[Fees] A Contracting Party may require that a fee be paid in respect of a request under paragraph (1) .

(4)

[Evidence] A Contracting Party may require that a declaration or other evidence in support of the reasons referred to in paragraph (1)(iii) be filed with the Office within a time limit fixed by the Office.

(5)

[Opportunity to Make Observations in Case of Intended Refusal] A request under paragraph (1) may not be refused, totally or in part, without the requesting party being given the opportunity to make observations on the intended refusal within a reasonable time limit.

Article 13

Correction or Addition of Priority Claim; Restoration of Priority Right

(1)

[Correction or Addition of Priority Claim] Except where otherwise prescribed in the Regulations, a Contracting Party shall provide for the correction or addition of a priority claim with respect to an application (“the subsequent application”), if:

(i)

a request to that effect is made to the Office in accordance with the requirements prescribed in the Regulations;

(ii)

the request is filed within the time limit prescribed in the Regulations; and

(iii) the filing date of the subsequent application is not later than the date of the expiration of the priority period calculated from the filing date of the earliest application whose priority is claimed.

(2)

[Delayed Filing of the Subsequent Application] Taking into consideration Article 15 , a Contracting Party shall provide that, where an application (“the subsequent application”) which claims or could have claimed the priority of an earlier application has a filing date which is later than the date on which the priority period expired, but within the time limit prescribed in the Regulations, the Office shall restore the right of priority, if:

(i)

a request to that effect is made to the Office in accordance with the requirements prescribed in the Regulations;

(ii)

the request is filed within the time limit prescribed in the Regulations;

(iii) the request states the reasons for the failure to comply with the priority period; and

(iv)

the Office finds that the failure to file the subsequent application within the priority period occurred in spite of due care required by the circumstances having been taken or, at the option of the Contracting Party, was unintentional.

(3)

[Failure to File a Copy of Earlier Application] A Contracting Party shall provide that, where a copy of an earlier application required under Article 6(5) is not filed with the Office within the time limit prescribed in the Regulations pursuant to Article 6 , the Office shall restore the right of priority, if:

(i)

a request to that effect is made to the Office in accordance with the requirements prescribed in the Regulations;

(ii)

the request is filed within the time limit for filing the copy of the earlier application prescribed in the Regulations pursuant to Article 6(5) ;

(iii) the Office finds that the request for the copy to be provided had been filed with the Office with which the earlier application was filed, within the time limit prescribed in the Regulations; and

(iv)

a copy of the earlier application is filed within the time limit prescribed in the Regulations.

(4)

[Fees] A Contracting Party may require that a fee be paid in respect of a request under paragraphs (1) to (3) .

(5)

[Evidence] A Contracting Party may require that a declaration or other evidence in support of the reasons referred to in paragraph (2)(iii) be filed with the Office within a time limit fixed by the Office.

(6)

[Opportunity to Make Observations in Case of Intended Refusal] A request under paragraphs (1) to (3) may not be refused, totally or in part, without the requesting party being given the opportunity to make observations on the intended refusal within a reasonable time limit.

Article 14

Regulations

(1)

[Content]

(a)

The Regulations annexed to this Treaty provide rules concerning:

(i)

matters which this Treaty expressly provides are to be “prescribed in the Regulations”;

(ii)

details useful in the implementation of the provisions of this Treaty;

(iii) administrative requirements, matters or procedures.

(b)

The Regulations also provide rules concerning the formal requirements which a Contracting Party shall be permitted to apply in respect of requests for:

(i)

recordation of change in name or address;

(ii)

recordation of change in applicant or owner;

(iii) recordation of a license or a security interest;

(iv)

correction of a mistake.

(c)

The Regulations also provide for the establishment of Model International Forms, and for the establishment of a request Form for the purposes of Article 6(2)(b) , by the Assembly, with the assistance of the International Bureau.

(2)

[Amending the Regulations] Subject to paragraph (3) , any amendment of the Regulations shall require three-fourths of the votes cast.

(3)

[Requirement of Unanimity]

(a)

The Regulations may specify provisions of the Regulations which may be amended only by unanimity.

(b)

Any amendment of the Regulations resulting in the addition of provisions to, or the deletion of provisions from, the provisions specified in the Regulations pursuant to subparagraph (a) shall require unanimity.

(c)

In determining whether unanimity is attained, only votes actually cast shall be taken into consideration. Abstentions shall not be considered as votes.

(4)

[Conflict Between the Treaty and the Regulations] In the case of conflict between the provisions of this Treaty and those of the Regulations, the former shall prevail.

Article 15 Relation to the Paris Convention

(1)

[Obligation to Comply with the Paris Convention] Each Contracting Party shall comply with the provisions of the Paris Convention which concern patents.

(2)

[Obligations and Rights Under the Paris Convention]

(a)

Nothing in this Treaty shall derogate from obligations that Contracting Parties have to each other under the Paris Convention.

(b)

Nothing in this Treaty shall derogate from rights that applicants and owners enjoy under the Paris Convention.

Article 16

Effect of Revisions, Amendments and Modifications of the Patent Cooperation Treaty

(1)

[Applicability of Revisions, Amendments and Modifications of the Patent Cooperation Treaty] Subject to paragraph (2) , any revision, amendment or modification of the Patent Cooperation Treaty made after June 2, 2000, which is consistent with the Articles of this Treaty, shall apply for the purposes of this Treaty and the Regulations if the Assembly so decides, in the particular case, by three-fourths of the votes cast.

(2)

[Non-Applicability of Transitional Provisions of the Patent Cooperation Treaty] Any provision of the Patent Cooperation Treaty, by virtue of which a revised, amended or modified provision of that Treaty does not apply to a State party to it, or to the Office of or acting for such a State, for as long as the latter provision is incompatible with the law applied by that State or Office, shall not apply for the purposes of this Treaty and the Regulations.

Article 17

Assembly

(1)

[Composition]

(a)

The Contracting Parties shall have an Assembly.

(b)

Each Contracting Party shall be represented in the Assembly by one delegate, who may be assisted by alternate delegates, advisors and experts. Each delegate may represent only one Contracting Party.

(2)

[Tasks] The Assembly shall:

(i)

deal with matters concerning the maintenance and development of this Treaty and the application and operation of this Treaty;

(ii)

establish Model International Forms, and the request Form, referred to in Article 14(1)(c) , with the assistance of the International Bureau;

(iii) amend the Regulations;

(iv)

determine the conditions for the date of application of each Model International Form, and the request Form, referred to in item (ii) , and each amendment referred to in item (iii) ;

(v)

decide, pursuant to Article 16(1) , whether any revision, amendment or modification of the Patent Cooperation Treaty shall apply for the purposes of this Treaty and the Regulations;

(vi)

perform such other functions as are appropriate under this Treaty.

(3)

[Quorum]

(a)

One-half of the members of the Assembly which are States shall constitute a quorum.

(b)

Notwithstanding subparagraph (a) , if, in any session, the number of the members of the Assembly which are States and are represented is less than one-half but equal to or more than one-third of the members of the Assembly which are States, the Assembly may make decisions but, with the exception of decisions concerning its own procedure, all such decisions shall take effect only if the conditions set forth hereinafter are fulfilled. The International Bureau shall communicate the said decisions to the members of the Assembly which are States and were not represented and shall invite them to express in writing their vote or abstention within a period of three months from the date of the communication. If, at the expiration of this period, the number of such members having thus expressed their vote or abstention attains the number of the members which was lacking for attaining the quorum in the session itself, such decisions shall take effect, provided that at the same time the required majority still obtains.

(4)

[Taking Decisions in the Assembly]

(a)

The Assembly shall endeavor to take its decisions by consensus.

(b)

Where a decision cannot be arrived at by consensus, the matter at issue shall be decided by voting. In such a case:

(i)

each Contracting Party that is a State shall have one vote and shall vote only in its own name; and

(ii)

any Contracting Party that is an intergovernmental organization may participate in the vote, in place of its Member States, with a number of votes equal to the number of its Member States which are party to this Treaty. No such intergovernmental organization shall participate in the vote if any one of its Member States exercises its right to vote and vice versa. In addition, no such intergovernmental organization shall participate in the vote if any one of its Member States party to this Treaty is a Member State of another such intergovernmental organization and that other intergovernmental organization participates in that vote.

(5)

[Majorities]

(a)

Subject to Articles 14(2) and (3) , 16(1) and 19(3) , the decisions of the Assembly shall require two-thirds of the votes cast.

(b)

In determining whether the required majority is attained, only votes actually cast shall be taken into consideration. Abstentions shall not be considered as votes.

(6)

[Sessions] The Assembly shall meet in ordinary session once every two years upon convocation by the Director General.

(7)

[Rules of Procedure] The Assembly shall establish its own rules of procedure, including rules for the convocation of extraordinary sessions.

Article 18 International Bureau

(1)

[Administrative Tasks]

(a)

The International Bureau shall perform the administrative tasks concerning this Treaty.

(b)

In particular, the International Bureau shall prepare the meetings and provide the secretariat of the Assembly and of such committees of experts and working groups as may be established by the Assembly.

(2)

[Meetings Other than Sessions of the Assembly] The Director General shall convene any committee and working group established by the Assembly.

(3)

[Role of the International Bureau in the Assembly and Other Meetings]

(a)

The Director General and persons designated by the Director General shall participate, without the right to vote, in all meetings of the Assembly, the committees and working groups established by the Assembly.

(b)

The Director General or a staff member designated by the Director General shall be ex officio secretary of the Assembly, and of the committees and working groups referred to in subparagraph (a) .

(4)

[Conferences]

(a)

The International Bureau shall, in accordance with the directions of the Assembly, make the preparations for any revision conferences.

(b)

The International Bureau may consult with member States of the Organization, intergovernmental organizations and international and national non-governmental organizations concerning the said preparations.

(c)

The Director General and persons designated by the Director General shall take part, without the right to vote, in the discussions at revision conferences.

(5)

[Other Tasks] The International Bureau shall carry out any other tasks assigned to it in relation to this Treaty.

Article 19

Revisions

(1)

[Revision of the Treaty] Subject to paragraph (2) , this Treaty may be revised by a conference of the Contracting Parties. The convocation of any revision conference shall be decided by the Assembly.

(2)

[Revision or Amendment of Certain Provisions of the Treaty] Article 17(2) and (6) may be amended either by a revision conference, or by the Assembly according to the provisions of paragraph (3) .

(3)

[Amendment by the Assembly of Certain Provisions of the Treaty]

(a)

Proposals for the amendment by the Assembly of Article 17(2) and (6) may be initiated by any Contracting Party or by the Director General. Such proposals shall be communicated by the Director General to the Contracting Parties at least six months in advance of their consideration by the Assembly.