Item 7.01. Regulation FD Disclosure
On August 10, 2009, PS Business Parks, Inc. issued a press release announcing the commencement of a public offering of its common stock. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Item 7.01 and in Exhibit 99.1 are being "furnished" in accordance with General Instruction B.2 of Form 8-K and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934 (the "Exchange Act") or otherwise subject to the liabilities of that section, nor shall they be deemed incorporated by reference in any filing under the Securities Act of 1933 or the Exchange Act, except as expressly set forth by specific reference in such a filing.
Item 9.01 Financial Statements and Exhibits
(d) Exhibit 99.1. Press Release, dated August 10, 2009, announcing commencement of public offering of common stock.

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