Forward-Looking StatementsWhen used within this press release, the words “may,” “believes,” “anticipates,” “plans,” “expects,” “seeks,” “estimates,” “intends” and similar expressions are intended to identify “forward-looking statements.” Such forward-looking statements involve known and unknown risks, uncertainties and other factors, which may cause the actual results and performance of the Company to be materially different from those expressed or implied in the forward-looking statements. Such factors include the impact of competition from new and existing commercial facilities which could impact rents and occupancy levels at the Company’s facilities; the Company’s ability to evaluate, finance and integrate acquired and developed properties into the Company’s existing operations; the Company’s ability to effectively compete in the markets that it does business in; the impact of the regulatory environment as well as national, state and local laws and regulations including, without limitation, those governing REITs; the impact of general economic conditions upon rental rates and occupancy levels at the Company’s facilities; the availability of permanent capital at attractive rates, the outlook and actions of Rating Agencies and risks detailed from time to time in the Company’s SEC reports, including quarterly reports on Form 10-Q, reports on Form 8-K and annual reports on Form 10-K. Additional information about PS Business Parks, Inc., including more financial analysis of the first quarter operating results, is available on the Internet. The Company’s website is www.psbusinessparks.com. A conference call is scheduled for Tuesday, May 1, 2012, at 10:00 a.m. (PDT) to discuss the first quarter results. The toll free number is (888) 299-3246; the conference ID is 70717112. The call will also be available via a live webcast on the Company’s website. A replay of the conference call will be available through May 8, 2012 at (855) 859-2056. A replay of the conference call will also be available on the Company’s website.