NATIONAL HOUSING PARTNERSHIP REALTY FUND IV

FY: Dec 31 2006

Q: Sep 30 2006

Q: Jun 30 2006

Q: Mar 31 2006

FY: Dec 31 2005

Q: Sep 30 2005

Q: Jun 30 2005

Q: Mar 31 2005

FY: Dec 31 2004

Q: Sep 30 2004

Q: Jun 30 2004

Q: Mar 31 2004

FY: Dec 31 2003

Q: Sep 30 2003

Q: Jun 30 2003

Q: Mar 31 2003

FY: Dec 31 2002

Q: Sep 30 2002

Q: Sep 30 2002

Q: Jun 30 2002

Completion of Acquisition or Disposition of Assets

8.01

5.02

8.01

8.01

5.02,9.01

5.02

4,7

4,7

1,7

Certification of termination of registration of a class of securities (Section 12(g))

AIMCO PROPERTIES LP

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC