U.S. President Barack Obama over the weekend called King Juan Carlos to congratulate him on a “historic reign,” the White House said.
Prince Felipe is scheduled to become King Felipe VI after proclamation ceremonies later this week.
The White House said President Obama thanked Don Juan Carlos for his promotion of democracy and transatlantic relations.
Events to proclaim Felipe the new King of Spain will begin with legislative action in parliament on the 18th, according to media reports.
The 19th will see ceremonies at Zarzuela Palace, the Congress Palace and the Royal Palace, including a balcony appearance by the new monarchs.