_#_Exchange rates: rubles (R) per US$1—0.580 (1990), 0.629 (1989), 0.629 (1988), 0.633 (1987), 0.704 (1986), 0.838 (1985); note—as of 1 April 1991 the official exchange rate remained administratively set; it should not be used indiscriminately to convert domestic rubles to dollars; in November 1990 the USSR introduced a commercial exchange rate of 1.8 rubles to the dollar used for accounting purposes within the USSR and which was still in force on 1 April 1991; on 1 April 1991 the USSR introduced a new foreign-currency market for foreign companies and individuals; the rate will be fixed twice a week based on supply and demand; as of 4 April 1991 the rate was 27.6 rubles to the dollar; Soviet citizens traveling abroad are restricted to buying $200 a year at prevailing rates
_#_Fiscal year: calendar year
_*Communications #_Railroads: 147,400 km total; 53,900 km electrified; does not include industrial lines (1989)
_#_Highways: 1,757,000 km total; 1,310,600 km hard-surfaced (asphalt, concrete, stone block, asphalt treated, gravel, crushed stone); 446,400 km earth (1989)
_#_Inland waterways: 123,700 km navigable, exclusive of Caspian Sea (1989)
_#_Pipelines: 82,000 km crude oil and refined products; 206,500 km natural gas (1987)
_#_Ports: St. Petersburg (formerly Leningrad), Riga, Tallinn, Kaliningrad, Liepaja, Ventspils, Murmansk, Arkhangel'sk, Odessa, Novorossiysk, Il'ichevsk, Nikolayev, Sevastopol', Vladivostok, Nakhodka; inland ports are Astrakhan', Baku, Nizhniy Novgorod (Gor'kiy), Kazan', Khabarovsk, Krasnoyarsk, Kuybyshev, Moscow, Rostov, Volgograd, Kiev
_#_Merchant marine: 1,565 ships (1,000 GRT or over) totaling 15,243,228 GRT/20,874,488 DWT; includes 52 passenger, 898 cargo, 52 container, 11 barge carrier, 4 roll-on/float off cargo, 5 railcar carrier, 114 roll-on/roll-off cargo, 230 petroleum, oils, and lubricants (POL) tanker, 5 liquefied gas, 17 combination ore/oil, 4 specialized liquid carrier, 13 chemical tanker, 160 bulk; note—594 merchant ships are based in Black Sea, 366 in Baltic Sea, 398 in Soviet Far East, and 207 in Barents Sea and White Sea; the Soviet Union has been transferring merchant ships to a variety of flags of convenience; at the beginning of 1991 the USSR had 64 ships under foreign flags (Cyprus 52, Malta 7, Panama 2, Vanuatu 2, and Honduras 1)
_#_Civil air: 4,000 major transport aircraft
_#_Airports: 7,192 total, 4,607 usable; 1,163 with permanent-surface runways; 33 with runways over 3,659 m; 491 with runways 2,440-3,659 m; 661 with runways 1,220-2,439 m