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

NOTICE OF EFFECTIVENESS

Effective Date: September 22, 2016
Accession Number: 0001104659-16-143617
Submission Type: POS AM
CIK: 0000005768
Company Name: AMERICAN SCIENCE & ENGINEERING, INC.
File Number: 333-89836
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