Wikipedia
REVTeX is a collection of LaTeX macros which is maintained and distributed by the American Physical Society with auxiliary files and a user support guide, as part of a “REVTeX toolbox.” REVTeX is popular among scientists who submit papers to journals published by the American Physical Society (APS), the American Institute of Physics (AIP), and the Optical Society of America (OSA). REVTeX is accepted by a few other technical publishers as well.
REVTeX was created by APS to support its authors in the editorial process and to facilitate the production of APS journals. Subsequent to REVTeX’s original release and APS’ success with this electronic publishing program, a collaborative effort of the APS, AIP, OSA, and the American Astronomical Society (AAS) was initiated to coordinate a revision to REVTeX and to AASTeX (used by AAS authors). The result was a version of REVTeX that APS, AIP, and OSA authors could use, with minimal impact to authors who submitted to multiple scholarly journals.
REVTeX is licensed under the LaTeX Project Public License.