Under the new law, same-sex couples can go on sick leave if their partner is sick and inherit property and receive a widow's pension if their partner dies.
European lawmakers and officials foresee problems because Britain lacks information on which EU nationals are in the country before its divorce.
Finnish lawmakers rejected a petition from more than 100,000 people demanding the repeal of a law allowing same-sex marriage that takes effect on March 1.
Rivera disembarked from an American Airlines jet that landed in the capital of San Juan and was placed under house arrest.
A Romanian court has ruled that the speaker of the Senate, accused of making false statements in a property fraud case, can go on trial.