On June 2010 the Government of Moscow has passed the Resolution # 553-ПП "State of the Works and Further Measures to Promote the Use of Compressed Natural Gas as a Motor Fuel for the Automotive transport of Moscow". I attach the Russian version of the text. English translation is not available, but I am sure you can do it easily.

It is an important Resolution. It opens the way for broad introduction of CNG in Moscow. The key points are:
- Social facilities (hospitals, kindergartens, schools) shall be served by Euro-4 vehicles or CNG vehicles.
- Electrical and CNG trucks vehicles will be exempt from the ban to enter the central area of Moscow.
- Communal vehicles in the central are of Moscow shall use alternative fuels (CNG, electric power).
- Multifuel filling stations in Moscow, where CNG make no less than 30% of the overall fuel sales, and automotive companies, where no less than 50% of the fleet are vehicle powered by alternative fuels (CNG and electric power) may get at least 5 year land tax holidays.
- Six Moscow bus companies will switch to CNG.
- 21 sites are approved for construction CNF filling stations.
- Filling stations without CNG options will not be allowed in Moscow.
- Moscow Law on the Use of Alternative Transportation Fuels will be developed.
- Electrical and CNG trucks vehicles will be exempt from the ban to enter restricted traffic zones.
- Government of Moscow intends to begin OEM production of NGVs in the city.
- Moscow NGVs will be used to serve Olympic Games in Sochi.
- Biomethane from sewage water and landfills will be produced in Moscow.

Other details you can read in the translation, if it will be available.
It is a promising document that may attract good investment.
Areas for potential investment are:
- Building CNG/LNG filling stations;
- Assembly / construction OEM NGVs;
- Manufacturing high pressure cylinders;
- Setting up transportation companies (taxi, bus, truck) that use NGVs.