Japan's Upper House is expected to pass three bills, including the Imperial Household Law amendment, on the final day of the legislative session [1].
The legislation is critical for the sustainability of the monarchy and the modernization of the legal system. By reforming the Imperial Household Law, the government aims to ensure a sufficient number of royal family members to maintain the throne's stability [3].
Prime Minister Sanae Takaichi said that the Code of Criminal Procedure amendment will significantly advance the retrial system [4]. The third piece of legislation expected to pass today is a bill establishing crimes for the desecration of the national flag [2]. These three bills are scheduled for a vote in the Upper House plenary session on July 17 [1].
However, a separate proposal regarding the "vice-capital" concept has not yet entered deliberations in the Upper House, despite passing the Lower House on July 15 [1]. This deadlock makes a session extension nearly certain, as the government seeks to pass the vice-capital legislation alongside the other priority bills [3].
Opposition leaders have signaled resistance to the current timeline. Saito, the Diet affairs committee chair for the Constitutional Democratic Party of Japan, said he would decline requests to enter deliberations the following day [5].
Despite these tensions, LDP Secretary-General Shunichi Suzuki said that the priority was to move forward with the Imperial Household Law amendment [6]. While some LDP officials initially expressed a desire to conclude all business by July 17 without an extension, the lack of progress on the vice-capital bill has shifted the outlook [7].
“The Imperial Household Law amendment is critical for the sustainability of the monarchy.”
The passage of the Imperial Household Law represents a strategic move to prevent a succession crisis by addressing the shrinking number of royals. However, the friction over the 'vice-capital' bill illustrates a deepening divide between the ruling coalition and opposition parties, suggesting that the government's legislative agenda will require more time and political negotiation than originally planned.


