Heritage Foundation Leadership for America

(1)  Marriages between persons of the same sex entered into in any jurisdiction, whether within or outside the State of Florida, the United States, or any other jurisdiction, either domestic or foreign, or any other place or location, or relationships between persons of the same sex which are treated as marriages in any jurisdiction, whether within or outside the State of Florida, the United States, or any other jurisdiction, either domestic or foreign, or any other place or location, are not recognized for any purpose in this state.

(2)  The state, its agencies, and its political subdivisions may not give effect to any public act, record, or judicial proceeding of any state, territory, possession, or tribe of the United States or of any other jurisdiction, either domestic or foreign, or any other place or location respecting either a marriage or relationship not recognized under subsection (1) or a claim arising from such a marriage or relationship.

The proposed text of the amendment is:

Inasmuch as marriage is the legal union of only one man and one woman as husband and wife, no other legal union that is treated as marriage or the substantial equivalent thereof shall be valid or recognized.