ISO 639-2 in the context of "Kapampangan language"

ISO 15924, Codes for the representation of names of scripts, is an international standard defining codes for writing systems or scripts (a "set of graphic characters used for the written form of one or more languages"). Each script is given both a four-letter code and a numeric code.

Where possible the codes are derived from ISO 639-2, where the name of a script and the name of a language using the script are identical (example: Gujarātī ISO 639 guj, ISO 15924 Gujr). Preference is given to the 639-2 Bibliographical codes, which is different from the otherwise often preferred use of the Terminological codes.

A macrolanguage is a group of mutually intelligible speech varieties, or dialect continuum, that have no traditional name in common, and which may be considered distinct languages by their speakers. Macrolanguages are used as a book-keeping mechanism for the ISO 639 international standard of language codes. Macrolanguages are established to assist mapping between different sets of ISO language codes. Specifically, there may be a many-to-one correspondence between ISO 639-3, intended to identify all the thousands of languages of the world, and either of two other sets, ISO 639-1, established to identify languages in computer systems, and ISO 639-2, which encodes a few hundred languages for library cataloguing and bibliographic purposes. When such many-to-one ISO 639-2 codes are included in an ISO 639-3 context, they are called "macrolanguages" to distinguish them from the corresponding individual languages of ISO 639-3. According to the ISO,

ISO 639-3 is curated by SIL International; ISO 639-2 is curated by the Library of Congress (USA).

ISO 639 is a standardized nomenclature used to classify languages. Each language is assigned a two-letter (set 1) and three-letter lowercase abbreviation (sets 2–5). Part 1 of the standard, ISO 639-1, defines the two-letter codes, and Part 3 (2007), ISO 639-3, defines the three-letter codes, aiming to cover all known natural languages, largely superseding the ISO 639-2 three-letter code standard.

Hiligaynon, also often referred to as Ilonggo or Binisayâ/Bisayâ nga Hiniligaynon/Inilonggo, is an Austronesian regional language spoken in the Philippines by about 9.1 million people, predominantly in Panay Island, Negros Occidental, and Soccsksargen, most of whom belong to the Hiligaynon people. It is the second-most widely spoken language in the Visayas and belongs to the Bisayan languages, and it is more distantly related to other Philippine languages.

It also has one of the largest native language-speaking populations of the Philippines, despite it not being taught and studied formally in schools and universities until 2012. Hiligaynon is given the ISO 639-2 three-letter code hil, but has no ISO 639-1 two-letter code.