IAU General Assembly Resolution B2 (1988)

The 1988 IAU General Assembly meeting in Baltimore, USA, adopted the following resolution: 
  RESOLUTION B2: Working Group on FITS

       The XXth General Assembly of the International Astronomical Union,

       considering
              the high importance of the Flexible Image Transport System (FITS)
              for the exchange of digital data between astronomical institutes
              and for astronomical archives;

       decides
              to form a Working Group on FITS to maintain the existing FITS
              standards and to review, approve and maintain future extensions
              to FITS, recommended practices for FITS implementations, and the 
              thesaurus of approve FITS keywords.
The FITS Working Group was formed under IAU Commission 5, Documentation and Astronomical Data.

Reference: Transactions of the International Astronomical Union (1988), Vol. XXB, p 52.