Caperton was constitutionally prohibited from running for a third consecutive term in 1996.

Ahmadinejad is constitutionally prohibited from seeking a third consecutive term, so he cannot run in the 2013 Presidential Election.

State governments, which are also in the negotiations, are constitutionally prohibited from making such agreements.

The government has no specific or comprehensive laws prohibiting trafficking in persons, although slavery and forced labor are both constitutionally prohibited.

Tabai, who had been President since independence, was constitutionally prohibited for serving a further term in office.

"Government endorsement of religion or practice of religion is constitutionally prohibited."

Barbados has no specific law prohibiting human trafficking, but slavery and forced labor are constitutionally prohibited.

Mr. Arias was constitutionally prohibited from seeking a second term.

Since 1999, governmental discrimination based on sexual orientation has been constitutionally prohibited.