Communications—note: This entry includes miscellaneous communications information of significance not included elsewhere.
Constitution: This entry includes the dates of adoption, revisions, and major amendments.
Country map: Most versions of the Factbook provide a country map in color. The maps were produced from the best information available at the time of preparation. Names and/or boundaries may have changed subsequently.
Country name: This entry includes all forms of the country's name approved by the US Board on Geographic Names (Italy is used as an example): conventional long form (Italian Republic), conventional short form (Italy), local long form (Repubblica Italiana), local short form (Italia), former (Kingdom of Italy), as well as the abbreviation. Also see the Terminology note.
Currency: This entry identifies the national medium of exchange and its basic subunit.
Data code: This entry gives the official US Government digraph that precisely identifies every land entity without overlap, duplication, or omission. AF, for example, is the data code for Afghanistan. This two-letter country code is a standardized geopolitical data element promulgated in the Federal Information Processing Standards Publication (FIPS) 10-4 by the National Institute of Standards and Technology at the US Department of Commerce and maintained by the Office of the Geographer and Global Issues at the US Department of State. The data code is used to eliminate confusion and incompatibility in the collection, processing, and dissemination of area-specific data and is particularly useful for interchanging data between databases. Appendix F cross-references various country data codes and Appendix G does the same thing for hydrographic data codes.
Data codes—country: This information is presented in Appendix F: Cross-Reference List of Country Data Codes which includes the US Government approved Federal Information Processing Standards (FIPS) codes, the International Organization for Standardization (ISO) codes, and Internet codes for land entities.
Data codes—hydrographic: This information is presented in Appendix G: Cross-Reference List of Hydrographic Data Codes which includes the International Hydrographic Organization (IHO) codes, Aeronautical Chart and Information Center (ACIC; now National Imagery and Mapping Agency or NIMA) codes, and Defense Intelligence Agency (DIA) codes for hydrographic entities. The US Government has not yet approved a standard for hydrographic data codes similar to the FIPS 10-4 standard for country data codes.
Date of information: In general, information available as of 1 January 1999, was used in the preparation of this edition.
Death rate: This entry gives the average annual number of deaths during a year per 1,000 population at midyear; also known as crude death rate. The death rate, while only a rough indicator of the mortality situation in a country, accurately indicates the current mortality impact on population growth. This indicator is significantly affected by age distribution, and most countries will eventually show a rise in the overall death rate, in spite of continued decline in mortality at all ages, as declining fertility results in an aging population.