A constitutional referendum was held in the Northern Mariana Islands on 6 March 1977.Northern Mariana Islands, 6 March 1977: Constitution Direct Democracy The new constitution was approved by 93% of voters and came into force on 9 January 1978.

Background A Constitutional Assembly had been elected and drafted the new constitution between 18 October until 5 December 1976.

Results ChoiceVotes%For3,55793.24Against2586.76Invalid/blank votes19–Total3,834100Registered voters/turnout6,55458.50Source: Direct Democracy

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