From the ARRL letter and website:

ARRL WITHDRAWS "REGULATION BY BANDWIDTH" PETITION, PLANS TO REFILE

The ARRL has withdrawn its controversial November 2005 Petition for
Rule
Making (RM-11306)
http://www.arrl.org/announce/regulat...1306/RM-11306-
asFiled.pdf
calling on the FCC to establish a regulatory regime to segment bands
by
necessary bandwidth rather than by emission mode. The League cited
"widespread misconceptions" surrounding the petition as a primary
reason for
deciding to remove it from FCC consideration. The ARRL left open the
option
of refiling the same or a similar petition in the future, however.

(rest of story at ARRL.org)

73 de Jim, N2EY