Form: EFFECT

Notice of Effectiveness

July 17, 2009

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

Notice of Effectiveness

Effectiveness Date: July 17, 2009 10:00 A.M.
Form: S-3
CIK: 0000808326
Company Name: EMCORE CORP
File Number: 333-160437