Article 75-6Interacting with Other Motor Vehicles When Entering Main Roadways and at Other Times
第七十五条の六（本線車道に入る場合等における他の自動車との関係）
A motor vehicle (other than an emergency motor vehicle) attempting to enter a main roadway (if attempting to enter a main roadway from another main roadway, this is limited to when the main roadway that the motor vehicle is attempting to enter is designated by road signs or markings) must not obstruct the progress of any other motor vehicle proceeding down the main roadway; provided, however that this does not apply if traffic controls are in place at the intersection.
A motor vehicle other than an emergency motor vehicle must not prevent an emergency motor vehicle that is attempting to enter a main roadway or exit a main roadway on which it is traveling from proceeding.