Trademarks are used to distinguish goods and services of companies. The classification of goods and services is defined by the International treaty known as "Nice Classification" or "International Classification of Goods and Services". Every five years the Nice Classification is revised.
One- and two-letter domains and domain names with numerals are now allowable for registration in Germany (.de)
The German Network Information Center (DENIC) amended its domain guidelines insofar as in future one- and two-letter domains are allowable for registration. In doing so, DENIC has abolished restrictions for second-level-domain registrations to a large extent. For example, "ab.de" or "z.de" are now registrable.
The registration procedure for such new domains starts on October 23, 2009, 9 am CEST, and registrations are handled according to the principle "first come, first serve".