Youth hostel, HOS tuhl, is an inexpensive overnight accommodation for travelers who belong to hosteling associations. The major hosteling association, the International Youth Hostel Federation (IYHF), coordinates a system of more than 4,000 hostels in over 60 countries. The IYHF often uses the name Hostelling International. The IYHF's affiliate (branch organization) in the United States is Hostelling International-USA. Its Canadian affiliate is Hostelling International-Canada. The Youth Hostels Association (England and Wales) and the Scottish Youth Hostels Association coordinate systems of hostels throughout the United Kingdom. Both youths and adults can belong to hosteling associations.