The Nisshōki flag is designated as the national flag in the Law Regarding the National Flag and National Anthem, which was promulgated and became effective on August 13, 1999.
Bendera Nisshōki ditetapkan sebagai bendera nasional sesuai Aturan Tentang Bendera Nasional dan Lagu Kebangsaan Nasional, yang diumumkan dan berlaku sejak tanggal Jumat, 13 Agustus 1999.