This page can be found on the web at the following url: http://opm.gov/insure/health/faq/premconversion/15.asp
When is Open Season for premium conversion?
The annual Open Season for premium conversion coincides with the FEHB Open Season, which is held each year from the Monday of the second full workweek in November through the Monday of the second full workweek in December.
What happens if an FEHB plan quits or becomes insolvent during the year and OPM offers a special Open Season? Can I change my election?
Yes, since loss of coverage is a qualifying life event.