Currency: ouguiya (plural—ouguiya); 1 ouguiya (UM) = 5 khoums
Exchange rates: ouguiya (UM) per US$1—83.838 (January 1990), 83.051 (1989), 75.261 (1988), 73.878 (1987), 74.375 (1986), 77.085 (1985)
Fiscal year: calendar year
- Communications Railroads: 670 km 1.435-meter standard gauge, single track, owned and operated by government mining company
Highways: 7,525 km total; 1,685 km paved; 1,040 km gravel, crushed stone, or otherwise improved; 4,800 km unimproved roads, trails, tracks
Inland waterways: mostly ferry traffic on the Senegal River
Ports: Nouadhibou, Nouakchott
Merchant marine: 1 cargo ship (1,000 GRT or over) totaling 1,272 GRT/ 1,840 DWT
Civil air: 2 major transport aircraft
Airports: 30 total, 29 usable; 9 with permanent-surface runways; none with runways over 3,659 m; 4 with runways 2,440-3,659 m; 17 with runways 1,220-2,439 m