Do-jime is one of the four forbidden techniques, Kinshi-waza. Do-jime is also a prohibited technique in Judo competitions, and is considered a 'slight infringement' according to IJF rules, Section 27: Prohibited acts and penalties, article 21.
Do-jime, one of the four forbidden techniques within the category of Kinshi-waza, is prohibited in Judo competitions and classified as a minor violation under IJF rules, specifically Article 21 of Section 27: Prohibited acts and penalties.