Abu Dhabi has merged two independent entities involved in tourism and culture into a single authority in a further reorganization of state-backed firms by the oil-rich emirate. Abu Dhabi, the largest and wealthiest emirate in the seven-member United Arab Emirates federation, has been conducting a strategic review measures of its government departments since 2011 to improve accountability in the public sector. It has also seen a shake-up of top management in strategic firms. The Abu Dhabi Tourism Authority (ADTA) and the Abu Dhabi Authority for Culture and Heritage (ADACH) were merged to form the Abu Dhabi Tourism & Culture Authority under a law issued by the UAE president and ruler of Abu Dhabi, Sheikh Khalifa bin Zayed Al-Nahayan, according to a statement from the new firm. Mubarak al Muhairi who was director-general of ADTA was named to the same position in the new entity.