The Director General is pleased to inform all Parties that the Forty-Second Meeting of the Assembly of Parties (AP-42) will be held in-person only from September 30 to October 2, 2026.
A convening letter and agenda was sent to ALL Parties on December 10th, 2025.
AP-42 is a paperless meeting. No printed documents are distributed to the participants during the meeting.
The Director General encourages the participants to bring their own laptop computer or tablet to access the AP documents.
In order to have access to ITSO’s restricted documents you will need a username and password to ITSO’s restricted website.

Convening Letter

AP-42 Documents

Program – Tentative Agenda

Practical Information

AP Rules and Procedures

The ITSO Agreement
ACCREDITATION
Each participating Party shall designate one individual to act as its Representative (Head of delegation) and may also designate such Alternate Representative(s) and Advisors as it deems necessary. The Party must communicate the name and title of each member of the delegation, together with the capacities in which they will attend the meeting, by e-mail, to the Director General as soon as possible. In addition, an official letter of accreditation signed by a duly empowered representative, as specified under rule V of the AP Rules of Procedure, must be mailed to the Director General or hand-carried to the meeting.

Sample Accreditation Letter AP-42

Sample Proxy Letter AP-42
ACCREDITATION FAQ’s
What is an Accreditation?
A credential issued on official stationery by a Party representative duly empowered to sign on behalf of an ITSO member country.
Who may sign the Accreditation?
The Head of State, the Head of Government, the Minister of Foreign Affairs, the official in charge of the sector of telecommunications, a representative of one of these entities duly empowered to sign on behalf of an ITSO member country.
What should be stated in the Accreditation?
The Accreditation must include the name and title of each representative of the delegation, together with the capacity in which they will attend the meeting (i.e. Representative, Alternate Representative(s) and Advisor(s)). There may be only one representative, but as many Alternate Representatives and Advisors as the Party deems necessary. The Accreditation must state that the members of this delegation are authorized to speak and vote on behalf of the Party.
When should I send the Accreditation letter?
As soon as the delegation is confirmed by your Administration and after pre-registration. Please email the accreditation letter to itsomail@itso.int.
Cannot attend AP-42?
You may accredit a representative from your diplomatic mission in Washington, D.C. to attend. Alternatively, another ITSO Party, with whom your Party shares similar views, may represent you at the meeting, to speak and vote in the name of your Party via Proxy.
A Proxy letter addressed to the Director General is required. Sample of Proxy letter can be found on this page above.
FORTY-SECOND MEETING OF THE ASSEMBLY OF PARTIES (AP-42)
/in Events /by Heloisa SiffertThe Director General is pleased to inform all Parties that the Forty-Second Meeting of the Assembly of Parties (AP-42) will be held in-person only from September 30 to October 2, 2026.
A convening letter and agenda was sent to ALL Parties on December 10th, 2025.
AP-42 is a paperless meeting. No printed documents are distributed to the participants during the meeting.
The Director General encourages the participants to bring their own laptop computer or tablet to access the AP documents.
In order to have access to ITSO’s restricted documents you will need a username and password to ITSO’s restricted website.
Convening Letter
AP-42 Documents
Program – Tentative Agenda
Practical Information
AP Rules and Procedures
The ITSO Agreement
ACCREDITATION
Each participating Party shall designate one individual to act as its Representative (Head of delegation) and may also designate such Alternate Representative(s) and Advisors as it deems necessary. The Party must communicate the name and title of each member of the delegation, together with the capacities in which they will attend the meeting, by e-mail, to the Director General as soon as possible. In addition, an official letter of accreditation signed by a duly empowered representative, as specified under rule V of the AP Rules of Procedure, must be mailed to the Director General or hand-carried to the meeting.
Sample Accreditation Letter AP-42
Sample Proxy Letter AP-42
ACCREDITATION FAQ’s
What is an Accreditation?
A credential issued on official stationery by a Party representative duly empowered to sign on behalf of an ITSO member country.
Who may sign the Accreditation?
The Head of State, the Head of Government, the Minister of Foreign Affairs, the official in charge of the sector of telecommunications, a representative of one of these entities duly empowered to sign on behalf of an ITSO member country.
What should be stated in the Accreditation?
The Accreditation must include the name and title of each representative of the delegation, together with the capacity in which they will attend the meeting (i.e. Representative, Alternate Representative(s) and Advisor(s)). There may be only one representative, but as many Alternate Representatives and Advisors as the Party deems necessary. The Accreditation must state that the members of this delegation are authorized to speak and vote on behalf of the Party.
When should I send the Accreditation letter?
As soon as the delegation is confirmed by your Administration and after pre-registration. Please email the accreditation letter to itsomail@itso.int.
Cannot attend AP-42?
You may accredit a representative from your diplomatic mission in Washington, D.C. to attend. Alternatively, another ITSO Party, with whom your Party shares similar views, may represent you at the meeting, to speak and vote in the name of your Party via Proxy.
A Proxy letter addressed to the Director General is required. Sample of Proxy letter can be found on this page above.
ITSO Webinar : WRC-27, SES Views and the Parties’ Common Heritage
/in Events /by PaulThe Director General of the International Telecommunications Satellite Organization (ITSO) presents her compliments and has the honor to invite all Parties to the ITSO Agreement to a webinar entitled “WRC-27, SES Views and the Parties’ Common Heritage.”
The ITU World Radiocommunication Conference 2027 (WRC-27) will address several Agenda Items with potential implications for satellite spectrum regulation. This webinar will provide an overview of key developments and their possible implications for the ITSO Parties, SES, and global connectivity.
Please note that this webinar will be delivered in English only.
Objectives:
Format:
26th Meeting of the ITSO Advisory Committee (IAC-26)
/in News, Uncategorized /by Shivali ShankarThe TWENTY-FIFTH Meeting of the ITSO Advisory Committee (IAC-25) met at American University Washington College of Law in Washington, D.C. […]
26th Meeting of the ITSO Advisory Committee (IAC-26)
/in Events /by Heloisa SiffertThe Director General would like to inform all Parties to the ITSO Agreement that the Twenty-Sixth Meeting of the ITSO Advisory Committee is scheduled for March 26-27, 2026 at American University Washington College of Law (AUWCL) located at 4300 Nebraska Ave NW. Yuma Building, Claudio Grossman Hall, Washington D.C., 20016. The meeting will start at 9.30 am on 26 March 2026.
IAC-26 will be a paperless meeting. No printed documents will be distributed to the participants during the meeting. The Director General encourages the participants to bring their own laptop computer or tablet to access the IAC documents.
In order to have access to ITSO’s restricted documents and register for the meeting you will need a username and password to ITSO’s restricted website. (Click on login at the top left of the page for the website registration form).
On-site registrations will begin on Thursday, 26th March at 8:00 am outside the Claudio Grossman Hall, Yuma Building, American University College of Law.
SIXTEENTH TRIPARTITE MEETING of EUTELSAT IGO, IMSO and ITSO on 4 December, 2025
/in News, Uncategorized /by Heloisa SiffertThe Sixteenth Tripartite Meeting of the Heads of the European Telecommunications Satellite Organization (EUTELSAT IGO), the International Mobile Satellite Organization […]
Dr. Renata Brazil-David, Director General
/in News, Uncategorized /by Heloisa SiffertDr. Renata Brazil-David assumes the position of Director General of ITSO, beginning an initial four-year term extending through July 2029.
Fifteenth Tripartite Meeting of EUTELSAT IGO, IMSO and ITSO on 25 November, 2024
/in DG Activities, DG Corner, News, Uncategorized /by Heloisa SiffertThe Fifteenth Tripartite Meeting of the Heads of the European Telecommunications Satellite Organization (EUTELSAT IGO), the International Mobile Satellite Organization […]
The USA Hosts ITSO at The Federal Communications Commission (FCC) to Discuss Implementation of AP-41 Decisions
/in DG Activities, DG Corner, News /by Heloisa SiffertThe Party of the United States, led by Mr. Douglas May and Mr. Stephen Duall, hosted the ITSO Secretariat at […]
1ST MEETING OF THE PANEL OF LEGAL EXPERTS (PLE-1) – Nov 2024
/in Desk of The DG, DG Corner /by Heloisa SiffertOn 7 Nov.2024 the 1st meeting of the Panel of Legal Experts (2024-2028) took place via video conference call.
Intelsat reported a service outage on the Intelsat 33e satellite
/in News /by Heloisa SiffertOn October 19, 2024, Intelsat reported a service outage on the Intelsat 33e satellite, located at the 60ºE orbital location, which resulted in a total loss of power and service to all customers accessing that satellite.
ITSO Director General, Patrick Masambu sent a letter on October 23, to all Parties, available at:
DG Letter to Parties regarding Intelsat 33e satellite