Proposes a constitutional amendment providing that marriage exists only between individuals who are eighteen years of age or older

HJR 127 proposes a constitutional amendment for Missouri that would require all marriages to be between individuals aged 18 or older. If approved by voters, it would repeal the current constitutional definition of marriage (Section 33) and replace it with a new provision stating marriage must exist only between people who are 18 or older. This amendment directly affects anyone seeking to marry in Missouri by establishing a minimum age requirement for marriage. The bill does not change the definition of marriage as between a man and a woman (that language is a placeholder to be removed), but instead focuses solely on the age requirement. The amendment would be submitted to voters in the November 2026 general election.