The Supreme Council of the UAE comprising of hereditary rulers of the seven emirates is the highest federal authority responsible for general policy matters involving communications, education, defense, foreign affairs, development and for ratifying federal laws.

The Federal Council of Ministers responsible to the Supreme Council has executive authority to initiate and implement laws. The Federal National Council is a consultative assembly of 40 representatives appointed for two years by each individual emirate. The council monitors and debates government policy but has no power to veto. 

The President, Shaikh Khalifa bin Zayed Al Nahyan (who is also the Ruler of Abu Dhabi) succeeded his father Shiakh Zayed bin Sultan Al Nahyan in November 2004. On February 1, 2008, Ruler of Dubai, UAE Vice President and Prime Minister His Highness Sheikh Mohammed bin Rashid Al Maktoum issued a decree appointing Sheikh Hamdan bin Mohammed bin Rashid Al Maktoum as Crown Prince of Dubai. Sheikh Mohammed issued another decree naming Sheikh Maktoum bin Mohammed bin Rashid Al Maktoum and Sheikh Hamdan bin Rashid Al Maktoum the Deputy Rulers of Dubai.

Source : GoDubai