Within 60 days of being published in the Federal Registry, use of 121.5
MHz ELTs will be forbidden by a re-write and re-title of
47 CFR section 87.195:

http://hraunfoss.fcc.gov/edocs_publi...C-10-103A1.pdf

"The manufacture, importation, sale or use of 121.5 MHz ELTs is prohibited."

The original text of 47 CFR section 87.195 may be read he

http://frwebgate.access.gpo.gov/cgi-...998&TYP E=PDF

Two issues:
1) There are ELTs that support both 121.5 and 406 MHz, yet the
one-sentence regulation doesn't acknowledge their existence, so it can
be interpreted to mean their use too is prohibited.

2) There are going to be a lot of seriously annoyed and ****ed owners of
"older" equipment.