Item 7.01 Regulation FD Disclosure

PS Business Parks announces it intends to release first quarter 2009 earning after close of business on Monday, May 4, 2009 and host the quarterly conference call on Tuesday May 5, 2009. The full text of the press release issued is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information in this Item 7.01 and 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, as amended (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) Exhibits

Exhibit 99.1: Press release dated April 8, 2009

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