Inter-parliamentary Relations
04/01/2026 to 03/31/2027
The Sangiin, which had been known as the House of Councillors, is called the Senate in English as of August 2026.
Inter-parliamentary Exchange
Overseas parliamentary delegations invited to visit the Senate
- Delegation from Australia Led by the President of the Senate Visits the House of Councillors (Invitation Dates: June 7-11, 2026)
- Delegation from the Federal Republic of Germany Led by the President of the Bundesrat Visits the House of Councillors (Invitation Dates: May 24-30, 2026)
Delegations from the Senate invited to visit overseas
| Dates | Delegation |
|---|---|
| 09/01/2026 to 09/10 | Delegation led by the President of the Senate on a visit to New Zealand and Australia |
| 09/13/2026 to 09/18 | Delegation led by the Vice-President of the Senate on a visit to the Republic of Korea and the Republic of the Philippines |
| 08/30/2026 to 09/06 | Delegation led by the Chairperson of the Committee on Rules and Administration of the Senate on a visit to the Kingdom of Denmark and the Italian Republic |
International Conferences
- Delegates from the Senate attend the 153rd IPU Assembly in Arusha (October 5-9, 2026)
- Delegates from the House of Councillors attend the 43rd Japan-EU Interparliamentary Conference in Strasbourg (July 8-9, 2026)
- Delegates from the House of Councillors attend the 152nd IPU Assembly in Istanbul (April 15-19, 2026)
Official Development Assistance (ODA) fact-finding missions
| Dates | Delegation |
|---|---|
| 09/13/2026 to 09/19 | [1st mission] East Asia, specifically the Kingdom of Cambodia and the Lao People's Democratic Republic |
High-priority issues for investigations
| Dates | Subject matter |
|---|---|
| 09/06/2026 to 09/11 | [1st subject] Foreign Affairs and Security Policy (the Republic of Türkiye, the Republic of India) |
| 09/13/2026 to 09/19 | [2nd subject] Policies Related to Declining Birthrate (the Federal Republic of Germany, the French Republic) |
| 09/13/2026 to 09/19 | [3rd subject] Energy Security (the Republic of Estonia, the Republic of Finland) |
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