Road signs in Mongolia are regulated in the MNS 4597:2014 technical standard and conform to the general pattern of road signs as set out in the Vienna Convention on Road Signs and Signals, to which Mongolia acceded on December 19, 1997.
Although Mongolia was never part of the Soviet Union, roads signs prescribed in the technical standard bear much similarity with those used in post-Soviet counterparts today (based on the Soviet standard GOST 10807-78 and the Russian standard GOST R 52290-2004).
The Arial Bold font is used on Mongolian road signs.