Primary: most frequent type of primary administrative division. If this item is a link, it leads to information updating the country's entry in "Administrative Subdivisions of Countries".
Secondary: most frequent type of secondary administrative division. Links are presented as in the Primary column.
Statistics: link to a site with statistical information, often including the area and population of each division. It will be the country's official statistical agency site, if there is one. "LoC" links to the tables in the appendix of a Library of Congress Country Study, whenever those tables have information about country subdivisions.
Postcodes: link to a page allowing lookup of postal codes, or a general-interest post office site.
Maps: link to a map of the country, showing divisions. "CIA" is one of a series of one-sheet, public-domain maps published by the Central Intelligence Agency. "FAO" is an outline map prepared by the U.N. Food and Agriculture Organization. "HCR" is a map from the U.N. High Commissioner for Refugees site. "Mgl" is a proprietary map created by Magellan. "Clik" is a map with clickable divisions. "Custom" is a map customized for this Web site. "PDF" is a file formatted for Adobe Acrobat (free download).
TZs: add or subtract the time interval, shown as +-hh:mm, from UTC (Coordinated Universal Time) to get local standard time. A "D" means that daylight saving time is observed in local summer. "Zones" means the country has several time zones (but small remote areas like Easter Island are ignored for this purpose). Links are to a page with geographical and historical details about the country's time zones.