Steve Grandi
It seems that everybody has a Y2K compliance plan—your bank, your utility companies, your PC vendor, your mechanic, and the kid down the street with a lemonade stand. NOAO is no exception: the current state of our Y2K preparations can be seen at http://www.noao.edu/y2k/.
Seriously, there are important Y2K issues with FITS records and with IRAF; see http://iraf.noao.edu/iraf/web/projects/y2k for a thorough discussion. Also, over the night of 31 December 1999-01 January 2000, the NOAO night-time observatories will be shut down (just in case!). On the next night, there will be no visiting observers and all telescope and instrument systems will be verified before science observations re-commence.