Integrated Taxonomic Information System

Primary content staff are housed at the Smithsonian National Museum of Natural History and IT services are provided by a US Geological Survey facility in Denver.

[3][4] Data presented in ITIS are considered public information, and may be freely distributed and copied, though appropriate citation[5] is requested.

[6] ITIS couples each scientific name with a stable and unique taxonomic serial number (TSN) as the "common denominator" for accessing information on such issues as invasive species, declining amphibians, migratory birds, fishery stocks, pollinators, agricultural pests, and emerging diseases.

In addition, common names are available through ITIS in the major official languages of the Americas (English, French, Spanish, and Portuguese).

1996 marked the release of NODC version 8, which served as a bridge to ITIS, which abandoned "intelligent" numeric codes in favor of more stable, but "un-intelligent" Taxonomic Serial Numbers.