Since 1985, when he became 18 years old, Willem-Alexander has been a member of the Council of State of the Netherlands.
This is the highest council of the Dutch government and is chaired by the head of state (then Queen Beatrix).

Willem-Alexander is interested in water management and sports issues.
He was an honorary member of the World Commission on Water for the 21st century and patron of the Global Water Partnership, a body established by the World Bank, the UN, and the Swedish Ministry of Development.
He was appointed as the Chairperson of the United Nations Secretary General's Advisory Board on Water and Sanitation on 12 December 2006.

On 10 October 2010, Willem-Alexander and Máxima went to the Netherlands Antilles' capital, Willemstad, to attend and represent his mother, the Queen, at the Antillean Dissolution ceremony.

He was a patron of the Dutch Olympic Games Committee until 1998 when he was made a member of the International Olympic Committee (IOC).
After becoming King, he relinquished his membership and received the Gold Olympic Order at the 125th IOC Session.
To celebrate the 100th anniversary of the 1928 Summer Olympics held in Amsterdam, he had expressed support to bid for the 2028 Summer Olympics.

He was a member of the supervisory board of De Nederlandsche Bank (the Dutch central bank), a member of the Advisory Council of ECP (the information society forum for government, business and civil society), patron of Veterans' Day and held several other patronages and posts.
Since 1985, when he became 18 years old, Willem-Alexander has been a member of the Council of State of the Netherlands. This is the highest council of the Dutch government and is chaired by the head of state (then Queen Beatrix).
Willem-Alexander is interested in water management and sports issues. He was an honorary member of the World Commission on Water for the 21st century and patron of the Global Water Partnership, a body established by the World Bank, the UN, and the Swedish Ministry of Development. He was appointed as the Chairperson of the United Nations Secretary General's Advisory Board on Water and Sanitation on 12 December 2006.
On 10 October 2010, Willem-Alexander and Máxima went to the Netherlands Antilles' capital, Willemstad, to attend and represent his mother, the Queen, at the Antillean Dissolution ceremony.
He was a patron of the Dutch Olympic Games Committee until 1998 when he was made a member of the International Olympic Committee (IOC). After becoming King, he relinquished his membership and received the Gold Olympic Order at the 125th IOC Session. To celebrate the 100th anniversary of the 1928 Summer Olympics held in Amsterdam, he had expressed support to bid for the 2028 Summer Olympics.
He was a member of the supervisory board of De Nederlandsche Bank (the Dutch central bank), a member of the Advisory Council of ECP (the information society forum for government, business and civil society), patron of Veterans' Day and held several other patronages and posts.
Willem-Alexander of the Netherlands