This article is a travel topic
Ticket sales to supporters of all the participating national associations ran from 12 December 2011 until 2 March 2012 via the 16 team-specific fan sales portals on the UEFA Euro 2012 website.
Resale tickets from people who are unable to certain matches can be bought on various places on the internet, though the Official UEFA EURO 2012 ticket portal  is the most reliable and trustworthy place to purchase these.
In Poland special cards for travelers coming for the tournament were prepared. They can be used as a train, or public transportation tickets in host cities, provide discounts and also carry health insurance .
"Ukranian Express" high-speed trains will start running between the four Ukrainian EURO 2012 host cities on May 15. Tickets for this service will become available via the Internet from May 1.
Seventeen trains will be added to the current service between Ukraine and Poland for the duration of the tournament, and tickets for this can be bought from March.
The polish road network contains fewer highways and more ordinary two-lane roads than is common in western countries, and is in general of low quality. A lot of these roads are far below capacity for the volume of traffic they are carrying and the average quality of the road surface is poor. All vehicles are required to use headlights, night and day, all year round.
The following eight cities will be hosting all the matches for the tournament. For information about travel, accommodation, restaurants and other activities in the cities, please see the individual city guides.
Both countries, especially Ukraine, have a history of football-related violence. 'Ultras' hooligan gangs have been known to launch violent attacks on rival supporters at international fixtures, and with thousands of people from 16 nations attending, there is a risk of tensions breaking loose with such a foreign presence in the region. Black, Asian, mixed race, Russian & German visitors should be particularly vigilant against far-right nationalist groups linked to these gangs.
The relevant authorities are well aware of these potential troublemakers, and are taking the appropriate security measures in preparation to the ensure the safety of visiting supporters. In general, common sense such as staying in large numbers of your own fans and being within a visible police-supervised presence are simple measures that should keep you well away from any risks of getting into any sort of danger on match days.