The North Dakota Red or Black Flags Initiative, also known as Anti-Red Flag Bill, was on the June 30, 1920 ballot in North Dakota as an initiated state statute, where it was approved. The measure banned the display of red and black flags or flags with any inscription opposed to the United State or North Dakota State Governments. It also stipulated that the only flags to be displayed in public areas as the national, state or friendly nations flags. The measure also established a penalty of 30 days in jail or a 100 dollar fine.
| North Dakota Initiative (June 1920)|
| Yes|| 74,634|| 64.54%|
Election results via: Legislative Manual, Official vote of North Dakota, 1920
Text of measure
The text of the state statute can be read here.