Examples of Announcements made by the Government of Japan on the Three Non-Nuclear Principles

Message by Prime Minister Yoshihiko Noda to the Global Zero Summit (October 11, 2011)
The realization of a world without nuclear weapons is a common aspiration of the human kind. Being the only country to have ever suffered from atomic bombings, Japan is particularly convinced that the tragic consequences of the use of nuclear weapons must never be repeated. Japan, for its part, has been firmly committed to the Three Non-Nuclear Principles of not possessing nuclear weapons, not producing them and not permitting their entry into the country.

Address by Prime Minister Naoto Kan at the Nagasaki Peace Ceremony (August 9, 2011) (Tentative translation)
Sixty-six years ago today, an atomic bomb was dropped on Nagasaki, taking the precious lives of an estimated 70,000 people in mere seconds. Even the survivors have been left with indescribable pain and irreparable scars. People must never forget, nor repeat, the horrors caused by nuclear weapons here in Nagasaki. I pledge that Japan, the only country to have experienced nuclear devastation in war, will observe its Constitution and firmly maintain the Three Non-Nuclear Principles for the sake of the ultimate elimination of nuclear weapons and the realization of eternal world peace.

Address by Prime Minister Naoto Kan at the Hiroshima Peace Memorial Ceremony (August 6, 2011) (Tentative translation)
People must never forget, nor repeat, the horrors caused by nuclear weapons here in Hiroshima 66 years ago. On behalf of the Government of Japan, I pledge that Japan, the only country to have experienced nuclear devastation in war, will observe its Constitution and firmly maintain the Three Non-Nuclear Principles for the sake of the ultimate elimination of nuclear weapons and the realization of eternal world peace.