Two-term limit for the President
Official text rightpowerlimitif conditionlegal term
No person shall be elected to the office of the President more than twice, and no person who has held the office of President, or acted as President, for more than two years of a term of which some other person was elected President shall be elected to the office of the President more than once. But this Article shall not apply to any person holding the office of President when this Article was proposed by the Congress, and shall not prevent any person who may be holding the office of President, or acting as President, during the term within which this Article becomes operative from holding the office of President or acting as President during the remainder of such term.
Proposal and ratification: This amendment was proposed to the legislatures of the several States by the Eightieth Congress on March 21, 1947 by House Joint Res. No. 27, and was declared by the Administrator of General Services, on March 1, 1951, to have been ratified by the legislatures of 36 of the 48 States. was completed on February 27, 1951.
Simplified explanation
No person shall be elected President more than twice, and no one who has held or acted as President for more than two years of another person's term shall be elected more than once. This did not apply to the President in office when it was proposed.