Tajikistan: coordinate systems
0 current national systems, and 15 regional or world-wide systems that also cover this country. Every code opens its page: definition, parameters, proj4, WKT.
Regional and world-wide systems that also cover this country 15
UTM zones, continental grids and frames shared with other countries.
Which system should I use?
For a plan or a survey in this country, use the national system named by the specification or the cadastre. A UTM zone suits a project that spills over national zones; WGS 84 (EPSG:4326) is for exchanging with a GPS.