page_title: UIC classification of railway coaches
section_title: Main letters
hierarchical_section_title: UIC classification of railway coaches / Main letters
caption_attribution_description: Deutsch: Ein blau-weißer 2.-Klasse-Interregiowagen von einer niederländischen Lok gezogen. English: UIC-X coach Bcm252 of the DB, in blue &amp; white livery. Français&#160;: voiture UIC type X Bcm252 de la DB, en livrée bleu &amp; blanche. Nederlands: Een ICB-rijtuig 2e klas, in blauw/witte versie. Eigen opname.
context_page_description: Railway coaches are classified under an international system developed by the UIC. This UIC classification of railway coaches replaced earlier national classification schemes in many countries, such as Germany. The coach class is expressed as a combination of letters. It is sometimes followed, for example in the Deutsche Bahn AG, by a three-figure class number. In a broader sense the vehicle number displayed on the coach is also part of its classification, because it encodes other technical details such as the top speed or the type of heating system used.
  For example the full designation of a passenger coach, including its coach number, looks like this:
  73 80 29-94 708-7 Bpmbz 293.6
context_section_description: The classification of a coach begins with one or more class letters, in our example above, a capital B. It describes the general class of coach:
caption: Bimz - 2nd class InterRegio coach
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