Exhibit 32

                           SECTION 1350 CERTIFICATION


In connection with the Quarterly Report on Form 10-Q of Public Storage
Properties IV, Ltd. (the "Partnership") for the quarterly period ended March 31,
2008 as filed with the Securities and Exchange Commission on the date hereof
(the "Report"), Ronald L. Havner, Jr., as Chief Executive Officer of Public
Storage, corporate general partner, and John Reyes, as Chief Financial Officer
of Public Storage, corporate general partner, each hereby certifies, pursuant to
18 U.S.C. ss.1350, as adopted pursuant to ss.906 of the Sarbanes-Oxley Act of
2002, that:

(1)  The Report fully complies with the  requirements  of Section 13(a) or 15(d)
     of the Securities Exchange Act of 1934; and

(2)  The information  contained in the Report fairly  presents,  in all material
     respects,  the  financial  condition  and  results  of  operations  of  the
     Partnership.

/s/    Ronald L. Havner, Jr.
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Name:  Ronald L. Havner, Jr.
Title: Chief Executive Officer of Public Storage
       Corporate General Partner
Date:  May 15, 2008

/s/    John Reyes
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Name:  John Reyes
Title: Chief Financial Officer of Public Storage
       Corporate General Partner
Date:  May 15, 2008