ISO 3166-2:BO is the entry for the Plurinational State of Bolivia in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.
Currently for Bolivia, ISO 3166-2 codes are defined for 9 departments.
Each code consists of two parts, separated by a hyphen. The first part is BO, the ISO 3166-1 alpha-2 code of the Plurinational State of Bolivia. The second part is a letter, currently used in vehicle registration plates.