In the Penal Code, the first clause of Article 165 Crimes of Counterfeiting of Seals states that a person who counterfeits the Imperial Seal for the purpose of unauthorized use shall be punished by imprisonment with work for a definite term of not less than two years, and the first clause of Article 154 states that a person who counterfeits an Imperial rescript or other official Imperial document with a counterfeited seal shall be punished by imprisonment with work for life or for a definite term of not less than three years.
御璽を行使の目的で偽造すると印章偽造の罪第164条第1項により2年以上の有期懲役に、偽造した御璽で詔書等の文書を偽装した場合は同法第154条第1項により無期又は3年以上の懲役に処せられる。