Form: EFFECT

Notice of Effectiveness

May 16, 2008

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Notice of Effectiveness

Effectiveness Date: May 16, 2008 3:00 P.M.
Form: S-1
CIK: 0000808326
Company Name: EMCORE CORP
File Number: 333-149860