SMITH A O CORP — Director's Dealing 2008

Feb 27, 2008

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SMITH A O CORP (AOS)
CIK: 0000091142
Period of Report: 2008-02-26

Reporting Person: Petrarca Mark A (Senior Vice Pres. - H.R. & P.A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2008-02-26	Common Stock	S	.774	$36.95	Disposed	3227	Direct

Footnotes

F1: Column 5 of Table 1 includes 1.045 shares of Common Stock acquired through automatic reinvestment of quarterly dividends under the A. O. Smith Corporation Dividend Reinvestment Plan ("Plan"). On February 26, 2008, Mark Petrarca ended his participation in this Plan and the fractional shares were sold.