 These irregularities exist just because it is hard to maintain good order when extending the network, and the UNECE does not want to change road numbers unnecessarily.Because the Socialist People's Republic of Albania refused to participate in international treaties such as the AGR, it was conspicuously excluded from the route scheme, with E65 and E90 making noticeable detours to go around it.In the 1990s, Albania opened up to the rest of Europe, but only ratified the AGR in August 2006, so its integration into the E-road network remains weak.