Form N-Q

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC 20549

FORM N-Q


QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number         811-6265         

        Nuveen Pennsylvania Investment Quality Municipal Fund        
(Exact name of registrant as specified in charter)


        333 West Wacker Drive, Chicago, Illinois 60606         
(Address of principal executive offices) (Zip code)


Jessica R. Droeger—Vice President and Secretary
        333 West Wacker Drive, Chicago, Illinois 60606         
(Name and address of agent for service)

Registrant's telephone number, including area code:         312-917-7700        

Date of fiscal year end:            6/30          

Date of reporting period:          3/31/06         

Form N-Q is to be used by management investment companies, other than small business investment companies registered on Form N-5 (§§ 239.24 and 274.5 of this chapter), to file reports with the Commission, not later than 60 days after the close of the first and third fiscal quarters, pursuant to rule 30b1-5 under the Investment Company Act of 1940 (17 CFR 270.30b1-5). The Commission may use the information provided on Form N-Q in its regulatory, disclosure review, inspection, and policymaking roles.

A registrant is required to disclose the information specified by Form N-Q, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-Q unless the Form displays a currently valid Office of Management and Budget (“OMB”) control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to the Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. § 3507.

Item 1. Schedule of Investments

                           Portfolio of Investments (Unaudited)             
                           Nuveen Pennsylvania Investment Quality Municipal Fund (NQP)             
                           March 31, 2006             
        Optional         
Principal        Call         
Amount (000)    Description (1)    Provisions (2)    Ratings (3)    Value 
    Consumer Staples – 0.4% (0.2% of Total Investments)             
$          1,000    Pennsylvania Economic Development Financing Authority, Solid Waste Disposal Revenue Bonds,    No Opt. Call    AA–   $   1,103,920 
     Procter & Gamble Paper Project, Series 2001, 5.375%, 3/01/31 (Alternative Minimum Tax)             
    Education and Civic Organizations – 27.2% (18.0% of Total Investments)             
2,000    Allegheny County Higher Education Building Authority, Pennsylvania, College Revenue Bonds,    9/08 at 102.00    BBB    2,038,780 
     Chatham College, Series 1998A, 5.250%, 9/01/18             
200    Allegheny County Higher Education Building Authority, Pennsylvania, College Revenue Refunding    No Opt. Call    Baa3    229,916 
     Bonds, Robert Morris College, Series 1998A, 6.000%, 5/01/28             
3,000    Allegheny County Higher Education Building Authority, Pennsylvania, Revenue Bonds, Carnegie    3/12 at 100.00    AA–    3,099,480 
     Mellon University, Series 2002, 5.125%, 3/01/32             
1,235    Allegheny County Higher Education Building Authority, Pennsylvania, Revenue Bonds, Robert    2/16 at 100.00    Baa3    1,219,143 
     Morris University, Series 2006A, 4.750%, 2/15/26 (WI/DD, Settling 4/05/06)             
2,000    Chester County Industrial Development Authority, Pennsylvania, Educational Facilities Revenue    1/12 at 100.00    AAA    2,059,740 
     Bonds, Westtown School, Series 2002, 5.000%, 1/01/26 – AMBAC Insured             
3,000    Delaware County Authority, Pennsylvania, Revenue Bonds, Haverford College, Series 2000,    11/10 at 101.00    AA    3,254,040 
     5.750%, 11/15/29             
    Delaware County Authority, Pennsylvania, Revenue Bonds, Villanova University, Series 2005:             
1,000     5.000%, 8/01/12 – MBIA Insured    No Opt. Call    AAA    1,062,300 
1,240     5.000%, 8/01/13 – MBIA Insured    No Opt. Call    AAA    1,321,480 
1,305     5.000%, 8/01/16 – MBIA Insured    8/15 at 100.00    AAA    1,390,347 
    Delaware County Authority, Pennsylvania, Revenue Bonds, Villanova University, Series 2006:             
1,710     5.000%, 8/01/23 (WI/DD, Settling 4/03/06) – AMBAC Insured    8/16 at 100.00    AAA    1,803,811 
840     5.000%, 8/01/24 (WI/DD, Settling 4/03/06) – AMBAC Insured    8/16 at 100.00    AAA    885,368 
1,315    Delaware County Authority, Pennsylvania, Revenue Refunding Bonds, Villanova University, Series    8/13 at 100.00    AAA    1,411,166 
     2003, 5.250%, 8/01/18 – FGIC Insured             
1,000    Harveys Lake General Municipal Authority, Pennsylvania, College Revenue Bonds, College of    11/09 at 100.00    A    1,051,620 
     Misericordia Project, Series 1999, 6.000%, 5/01/19 – ACA Insured             
    Indiana County Industrial Development Authority, Pennsylvania, Revenue Bonds, Student             
    Cooperative Association Inc./Indiana University of Pennsylvania – Student Union Project,             
    Series 1999B:             
815     0.000%, 11/01/15 – AMBAC Insured    No Opt. Call    AAA    540,744 
815     0.000%, 11/01/16 – AMBAC Insured    No Opt. Call    AAA    513,271 
815     0.000%, 11/01/17 – AMBAC Insured    No Opt. Call    AAA    486,840 
815     0.000%, 11/01/18 – AMBAC Insured    No Opt. Call    AAA    462,235 
815     0.000%, 11/01/19 – AMBAC Insured    No Opt. Call    AAA    439,994 
1,515    Montgomery County Higher Education and Health Authority, Pennsylvania, Revenue Bonds, Arcadia    4/16 at 100.00    AA    1,456,915 
     University, Series 2006, 4.500%, 4/01/30 – RAAI Insured             
8,000    Pennsylvania Higher Education Assistance Agency, Capital Acquisition Revenue Refunding Bonds,    11/11 at 100.00    Aaa    8,217,120 
     Series 2001, 5.000%, 12/15/30 – MBIA Insured             
5,000    Pennsylvania Higher Educational Facilities Authority, General Revenue Bonds, State System of    6/12 at 100.00    Aaa    5,255,500 
     Higher Education, Series 2002W, 5.000%, 6/15/19 – AMBAC Insured             
1,435    Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, Allegheny College, Series    5/16 at 100.00    A–    1,421,439 
     2006, 4.750%, 5/01/31             
5,000    Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, Moravian College, Series    7/11 at 100.00    AA    5,199,800 
     2001, 5.375%, 7/01/31 – RAAI Insured             
1,000    Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, Thomas Jefferson    1/13 at 100.00    A1    1,032,290 
     University, Series 2002, 5.000%, 1/01/20             
3,450    Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, University of    No Opt. Call    AA    3,693,881 
     Pennsylvania, Series 2005A, 5.000%, 9/01/14             
2,000    Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, University of    7/15 at 100.00    AA    2,074,340 
     Pennsylvania, Series 2005C, 5.000%, 7/15/38             
2,945    Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, Ursinus College, Series    7/13 at 100.00    AA    3,130,771 
     2003, 5.375%, 1/01/20 – RAAI Insured             
    Pennsylvania State University, General Revenue Bonds, Series 2005:             
1,040     5.000%, 9/01/14    No Opt. Call    AA    1,113,518 
1,560     5.000%, 9/01/15    No Opt. Call    AA    1,672,242 
6,000    Swarthmore Borough Authority, Pennsylvania, Swarthmore College Revenue Bonds, Series 1998,    9/08 at 100.00    AA+    6,076,500 
     5.000%, 9/15/28             
    Union County, Higher Education Facilities Financing Authority, Pennsylvania, Revenue Bonds,             
    Bucknell University, Series 2002A:             
1,665     5.250%, 4/01/18    4/13 at 100.00    Aa2    1,766,448 
1,000     5.250%, 4/01/20    4/13 at 100.00    Aa2    1,071,570 
10    Wilkes-Barre General Municipal Authority, Pennsylvania, College Revenue Refunding Bonds,    6/06 at 100.00    N/R    10,031 
     College of Misericordia, Series 1992B, 7.750%, 12/01/12             
65,540    Total Education and Civic Organizations            66,462,640 
    Health Care – 10.4% (6.9% of Total Investments)             
1,555    Allegheny County Hospital Development Authority, Pennsylvania, Revenue Bonds, Ohio Valley    4/15 at 100.00    Baa2    1,551,268 
     General Hospital, Series 2005A, 5.125%, 4/01/35             
1,115    Erie County Hospital Authority, Pennsylvania, Revenue Bonds, Hamot Health Foundation, Series    11/12 at 100.00    AAA    1,180,830 
     2002, 5.250%, 11/01/15 – AMBAC Insured             
2,500    Lehigh County General Purpose Authority, Pennsylvania, Hospital Revenue Bonds, St. Luke’s    8/13 at 100.00    Baa1    2,574,925 
     Hospital of Bethlehem, Series 2003, 5.375%, 8/15/33             
1,250    Lehigh County General Purpose Authority, Pennsylvania, Revenue Bonds, Good Shepherd Group,    11/14 at 100.00    A    1,308,675 
     Series 2004A, 5.500%, 11/01/24             
2,360    Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, University of    8/15 at 100.00    AAA    2,505,494 
     Pennsylvania Health Services, Series 2005B, 5.000%, 8/15/16 – FGIC Insured             
9,000    Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, UPMC Health System,    1/11 at 101.00    Aa3    9,779,490 
     Series 2001A, 6.000%, 1/15/31             
1,225    Philadelphia Hospitals and Higher Education Facilities Authority, Pennsylvania, Hospital    11/23 at 100.00    BBB    1,245,666 
     Revenue Bonds, Temple University Hospital, Series 1993A, 6.625%, 11/15/23             
1,615    Sayre Health Care Facility Authority, Pennsylvania, Revenue Bonds, Latrobe Area Hospital,    7/12 at 100.00    AAA    1,717,294 
     Series 2002A, 5.250%, 7/01/13 – AMBAC Insured             
    Southcentral Pennsylvania General Authority, Revenue Bonds, Hanover Hospital Inc., Series 2005:             
525     5.000%, 12/01/27 – RAAI Insured    12/15 at 100.00    AA    541,622 
370     5.000%, 12/01/29 – RAAI Insured    12/15 at 100.00    AA    380,549 
960    St. Mary Hospital Authority, Pennsylvania, Health System Revenue Bonds, Catholic Health East,    11/14 at 100.00    A1    1,002,816 
     Series 2004B, 5.375%, 11/15/34             
1,500    West Shore Area Hospital Authority, Cumberland County, Pennsylvania, Hospital Revenue Bonds,    1/12 at 100.00    BBB    1,586,040 
     Holy Spirit Hospital of the Sisters of Christian Charity Project, Series 2001, 6.250%, 1/01/32             
23,975    Total Health Care            25,374,669 
    Housing/Multifamily – 1.9% (1.3% of Total Investments)             
3,300    Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, Slippery Rock University    7/15 at 100.00    AAA    3,399,561 
     Foundation Inc., Student Housing Project, Series 2005A, 5.000%, 7/01/37 – XLCA Insured             
800    Philadelphia Authority for Industrial Development, Pennsylvania, Multifamily Housing Revenue    5/15 at 102.00    Baa2    808,856 
     Bonds, Presbyterian Homes Germantown – Morrisville Project, Series 2005A, 5.625%, 7/01/35             
440    Pittsburgh Urban Redevelopment Authority, Pennsylvania, Mortgage Revenue Bonds, Series 1992C,    8/06 at 100.00    A2    440,488 
     7.125%, 8/01/13 (Alternative Minimum Tax)             
4,540    Total Housing/Multifamily            4,648,905 
    Housing/Single Family – 1.3% (0.9% of Total Investments)             
960    Pittsburgh Urban Redevelopment Authority, Pennsylvania, Mortgage Revenue Bonds, Series 1997A,    4/07 at 102.00    AAA    969,744 
     6.250%, 10/01/28 (Alternative Minimum Tax)             
2,140    Pittsburgh Urban Redevelopment Authority, Pennsylvania, Mortgage Revenue Bonds, Series 2001B,    10/11 at 100.00    AAA    2,193,757 
     5.450%, 10/01/32 (Alternative Minimum Tax)             
3,100    Total Housing/Single Family            3,163,501 
    Industrials – 4.4% (2.9% of Total Investments)             
5,000    Pennsylvania Economic Development Financing Authority, Exempt Facilities Revenue Bonds, Amtrak    5/11 at 101.00    A3    5,383,500 
     Project, Series 2001A, 6.375%, 11/01/41 (Alternative Minimum Tax)             
5,000    Pennsylvania Industrial Development Authority, Economic Development Revenue Bonds, Series    No Opt. Call    AAA    5,438,150 
     2002, 5.500%, 7/01/12 – AMBAC Insured             
10,000    Total Industrials            10,821,650 
    Long-Term Care – 1.4% (0.9% of Total Investments)             
1,500    Cumberland County Municipal Authority, Pennsylvania, Revenue Bonds, Presbyterian Homes Inc.,    12/12 at 100.00    AA    1,532,295 
     Series 2003A, 5.000%, 12/01/26 – RAAI Insured             
230    Philadelphia Authority for Industrial Development, Pennsylvania, Health Care Facilities    5/08 at 102.00    N/R    232,535 
     Revenue Bonds, Paul’s Run, Series 1998A, 5.875%, 5/15/28             
1,500    Philadelphia Authority for Industrial Development, Pennsylvania, Revenue Bonds, Philadelphia    7/11 at 101.00    AAA    1,577,505 
     Corporation for the Aging Project, Series 2001B, 5.250%, 7/01/26 – AMBAC Insured             
3,230    Total Long-Term Care            3,342,335 
    Materials – 1.2% (0.8% of Total Investments)             
1,260    Bradford County Industrial Development Authority, Pennsylvania, Solid Waste Disposal Revenue    12/15 at 100.00    BBB    1,264,183 
     Bonds, International Paper Company, Series 2005B, 5.200%, 12/01/19 (Alternative Minimum Tax)             
1,750    Pennsylvania Economic Development Financing Authority, Exempt Facilities Revenue Bonds,    11/08 at 102.00    N/R    1,847,388 
     National Gypsum Company, Series 1997B, 6.125%, 11/01/27 (Alternative Minimum Tax)             
3,010    Total Materials            3,111,571 
    Tax Obligation/General – 23.6% (15.6% of Total Investments)             
1,800    Allegheny County, Pennsylvania, General Obligation Bonds, Series 2000C-53, 5.250%, 11/01/20 –    5/11 at 100.00    AAA    1,905,480 
     FGIC Insured             
4,000    Allegheny County, Pennsylvania, General Obligation Bonds, Series 2005C-57, 5.250%, 11/01/13 –    No Opt. Call    AAA    4,338,320 
     FGIC Insured             
1,640    Bensalem Township, Pennsylvania, General Obligation Bonds, Series 2004, 5.000%, 12/01/13 –    No Opt. Call    Aaa    1,752,635 
     FGIC Insured             
1,200    Butler County, Pennsylvania, General Obligation Bonds, Series 2004, 5.000%, 7/15/16 – FGIC    7/14 at 100.00    AAA    1,273,788 
     Insured             
2,200    Central Bucks County School District, Pennsylvania, General Obligation Bonds, Series 2003,    5/13 at 100.00    Aaa    2,293,522 
     5.000%, 5/15/23 – MBIA Insured             
1,000    Delaware County, Pennsylvania, General Obligation Bonds, Series 1999, 5.125%, 10/01/19    10/09 at 100.00    AA    1,039,390 
2,345    Delaware County, Pennsylvania, General Obligation Bonds, Series 2005, 5.000%, 10/01/20    10/15 at 100.00    AA    2,478,477 
6,000    Delaware Valley Regional Finance Authority, Pennsylvania, Local Government Revenue Bonds,    No Opt. Call    AA–    6,686,820 
     Series 2002, 5.750%, 7/01/17             
7,500    Montgomery County, Pennsylvania, General Obligation Bonds, Series 1999, 5.000%, 7/15/24    7/09 at 100.00    Aaa    7,749,600 
1,000    New Castle Area School District, Lawrence County, Pennsylvania, General Obligation Bonds,    3/10 at 100.00    AAA    1,070,420 
     Series 2000, 5.600%, 3/01/25 – MBIA Insured             
1,025    Norristown Area School District, Montgomery County, Pennsylvania, General Obligation Bonds,    3/13 at 100.00    Aaa    1,079,089 
     Series 2003, 5.000%, 9/01/19 – FGIC Insured             
2,100    Pennsylvania, General Obligation Bonds, Second Series 2005, 5.000%, 1/01/19    1/16 at 100.00    AA    2,232,279 
    Philadelphia, Pennsylvania, General Obligation Bonds, Series 2003A:             
1,000     5.000%, 2/15/12 – XLCA Insured    No Opt. Call    AAA    1,052,790 
2,585     5.250%, 2/15/13 – XLCA Insured    No Opt. Call    AAA    2,767,423 
3,000    Pittsburgh School District, Allegheny County, Pennsylvania, General Obligation Refunding    No Opt. Call    AAA    3,324,750 
     Bonds, Series 2002A, 5.500%, 9/01/15 – FSA Insured             
3,390    Pocono Mountain School District, Monroe County, Pennsylvania, General Obligation Bonds, Series    2/13 at 100.00    Aaa    3,587,400 
     2003, 5.000%, 2/15/15 – FGIC Insured             
1,590    Red Lion Area School District, York County, Pennsylvania, General Obligation Bonds, Series    10/11 at 100.00    Aaa    1,666,256 
     2001, 5.000%, 4/15/20 – FSA Insured             
2,500    Seneca Valley School District, Butler County, Pennsylvania, General Obligation Bonds, Series    7/15 at 100.00    Aaa    2,646,925 
     2005, 5.000%, 1/01/19 – FGIC Insured             
2,000    Souderton Area School District, Bucks and Montgomery Counties, Pennsylvania, General    5/15 at 100.00    Aaa    2,102,320 
     Obligation Bonds, Series 2005, 5.000%, 11/15/22 – FGIC Insured             
445    State Public School Building Authority, Pennsylvania, School Revenue Bonds, Conneaut School    11/13 at 100.00    AAA    476,163 
     District, Series 2003, 5.250%, 11/01/21 – FGIC Insured             
1,465    Stroudsburg Area School District, Monroe County, Pennsylvania, General Obligation Bonds,    4/12 at 100.00    AAA    1,538,323 
     Series 2001A, 5.000%, 4/01/18 – FSA Insured             
415    Upper Merion Area School District, Montgomery County, Pennsylvania, General Obligation Bonds,    2/13 at 100.00    Aa2    444,208 
     Series 2003, 5.250%, 2/15/19             
2,265    West Chester Area School District, Chester and Delaware Counties, Pennsylvania, General    11/15 at 100.00    Aaa    2,400,673 
     Obligation Bonds, Series 2006A, 5.000%, 5/15/20 – FSA Insured             
1,600    Woodland Hills School District, Allegheny County, Pennsylvania, General Obligation Bonds,    9/15 at 100.00    AAA    1,703,520 
     Series 2005D, 5.000%, 9/01/17 – FSA Insured             
54,065    Total Tax Obligation/General            57,610,571 
    Tax Obligation/Limited – 24.2% (16.0% of Total Investments)             
5,045    Allegheny County Industrial Development Authority, Pennsylvania, Revenue Bonds, Guaranteed    11/12 at 100.00    AAA    5,265,113 
     County Building Project, Series 2002A, 5.000%, 11/01/22 – MBIA Insured             
    Allegheny County Port Authority, Pennsylvania, Special Transportation Revenue Bonds, Series             
    2001:             
1,000     5.500%, 3/01/17 – FGIC Insured    3/11 at 101.00    AAA    1,078,490 
3,500     5.000%, 3/01/29 – FGIC Insured    3/11 at 101.00    AAA    3,603,635 
2,100    Erie County Convention Center Authority, Pennsylvania, Convention Center Revenue Bonds, Series    1/15 at 100.00    AAA    2,173,080 
     2005, 5.000%, 1/15/36 – FGIC Insured             
8,725    Pennsylvania Intergovernmental Cooperative Authority, Special Tax Revenue Refunding Bonds,    6/09 at 100.00    AAA    8,825,250 
     Philadelphia Funding Program, Series 1999, 4.750%, 6/15/23 – FGIC Insured             
    Pennsylvania Turnpike Commission, Oil Franchise Tax Senior Lien Revenue Bonds, Series 2003A:             
1,800     5.250%, 12/01/14 – MBIA Insured    12/13 at 100.00    AAA    1,948,194 
1,500     5.250%, 12/01/15 – MBIA Insured    12/13 at 100.00    AAA    1,619,475 
2,600     5.250%, 12/01/17 – MBIA Insured    12/13 at 100.00    AAA    2,797,496 
2,125     5.250%, 12/01/18 – MBIA Insured    12/13 at 100.00    AAA    2,286,415 
1,000     5.250%, 12/01/19 – MBIA Insured    12/13 at 100.00    AAA    1,075,960 
2,125    Pennsylvania Turnpike Commission, Oil Franchise Tax Subordinate Lien Revenue Bonds, Series    12/13 at 100.00    AAA    2,286,415 
     2003B, 5.250%, 12/01/18 – MBIA Insured             
    Pennsylvania Turnpike Commission, Registration Fee Revenue Bonds, Series 2005A:             
1,900     5.250%, 7/15/16 – FSA Insured    No Opt. Call    AAA    2,080,785 
4,000     5.250%, 7/15/19 – FSA Insured    No Opt. Call    AAA    4,422,000 
10,935    Philadelphia Authority for Industrial Development, Pennsylvania, Lease Revenue Bonds, Series    10/11 at 101.00    AAA    11,464,910 
     2001B, 5.250%, 10/01/30 – FSA Insured             
2,700    Philadelphia Municipal Authority, Pennsylvania, Lease Revenue Bonds, Series 2003B, 5.250%,    11/13 at 100.00    AAA    2,857,140 
     11/15/17 – FSA Insured             
4,000    Pittsburgh and Allegheny Counties Public Auditorium Authority, Pennsylvania, Sales Tax Revenue    8/09 at 101.00    AAA    4,125,040 
     Bonds, Regional Asset District, Series 1999, 5.000%, 2/01/29 – AMBAC Insured             
1,090    Pittsburgh Urban Redevelopment Authority, Pennsylvania, Tax Increment Financing District    5/09 at 100.00    A2    1,145,982 
     Bonds, Center Triangle Project, Series 1999A, 6.100%, 5/01/19             
56,145    Total Tax Obligation/Limited            59,055,380 
    Transportation – 8.8% (5.8% of Total Investments)             
630    Delaware River Joint Toll Bridge Commission, Pennsylvania and New Jersey, Revenue Bonds,    7/13 at 100.00    A2    669,520 
     Series 2003, 5.250%, 7/01/17             
2,035    Lehigh-Northampton Airport Authority, Pennsylvania, Airport Revenue Bonds, Lehigh Valley    5/10 at 100.00    Aaa    2,178,183 
     Airport System, Series 2000A, 6.000%, 5/15/30 – MBIA Insured (Alternative Minimum Tax)             
5,400    Pennsylvania Economic Development Financing Authority, Revenue Bonds, Amtrak 30th Street    6/12 at 102.00    A    5,793,120 
     Station Parking Garage, Series 2002, 5.800%, 6/01/23 – ACA Insured (Alternative Minimum Tax)             
2,200    Pennsylvania Turnpike Commission, Turnpike Revenue Bonds, Series 2001R, 5.000%, 12/01/30 –    12/11 at 101.00    AAA    2,282,060 
     AMBAC Insured             
5,000    Philadelphia Airport System, Pennsylvania, Revenue Bonds, Series 2001B, 5.250%, 6/15/31 – FGIC    6/11 at 101.00    AAA    5,161,100 
     Insured (Alternative Minimum Tax)             
3,250    Philadelphia Parking Authority, Pennsylvania, Airport Parking Revenue Bonds, Series 1999,    9/09 at 101.00    AAA    3,402,230 
     5.250%, 9/01/29 – FSA Insured             
1,885    Pittsburgh Public Parking Authority, Pennsylvania, Parking System Revenue Refunding Bonds,    No Opt. Call    AAA    2,007,883 
     Series 2002, 5.000%, 12/01/12 – AMBAC Insured             
20,400    Total Transportation            21,494,096 
    U.S. Guaranteed – 23.1% (15.2% of Total Investments) (4)             
3,550    Allegheny County, Pennsylvania, General Obligation Bonds, Series 2000C-52, 5.250%, 11/01/23    5/11 at 100.00    AAA    3,802,405 
     (Pre-refunded 5/01/11) – FGIC Insured             
1,320    Allegheny County, Pennsylvania, General Obligation Refunding Bonds, Series 2000C-53, 5.250%,    5/11 at 100.00    AAA    1,413,852 
     11/01/20 (Pre-refunded 5/01/11) – FGIC Insured             
830    Delaware River Joint Toll Bridge Commission, Pennsylvania and New Jersey, Revenue Bonds,    7/13 at 100.00    A2 (4)    896,583 
     Series 2003, 5.250%, 7/01/17 (Pre-refunded 7/01/13)             
5,000    Erie, Pennsylvania, Water Authority, Water Revenue Bonds, Series 2001A, 5.200%, 12/01/30    12/11 at 100.00    AAA    5,368,900 
     (Pre-refunded 12/01/11) – MBIA Insured             
6,275    Hempfield Area School District, Westmoreland County, Pennsylvania, General Obligation Bonds,    2/12 at 100.00    AAA    6,795,637 
     Series 2002, 5.375%, 2/15/18 (Pre-refunded 2/15/12) – FGIC Insured             
1,450    Indiana County Industrial Development Authority, Pennsylvania, Revenue Bonds, Student    11/06 at 100.00    AAA    1,469,735 
     Cooperative Association Inc./Indiana University of Pennsylvania – Student Union Project,             
     Series 1999A, 5.875%, 11/01/29 (Pre-refunded 11/01/06) – AMBAC Insured             
3,650    Pennsylvania Turnpike Commission, Registration Fee Revenue Bonds, Series 2001, 5.000%, 7/15/41    7/11 at 101.00    AAA    3,902,653 
     (Pre-refunded 7/15/11) – AMBAC Insured             
790    Philadelphia Gas Works, Pennsylvania, Revenue Bonds, Twelfth Series 1990B, 7.000%, 5/15/20 –    No Opt. Call    AAA    940,345 
     MBIA Insured (ETM)             
3,400    Philadelphia School District, Pennsylvania, General Obligation Bonds, Series 2002B, 5.625%,    8/12 at 100.00    AAA    3,742,550 
     8/01/18 (Pre-refunded 8/01/12) – FGIC Insured             
6,100    Plum Borough School District, Allegheny County, Pennsylvania, General Obligation Bonds, Series    9/11 at 100.00    AAA    6,522,059 
     2001, 5.250%, 9/15/30 (Pre-refunded 9/15/11) – FGIC Insured             
785    State Public School Building Authority, Pennsylvania, School Revenue Bonds, Conneaut School    11/13 at 100.00    AAA    854,394 
     District, Series 2003, 5.250%, 11/01/21 (Pre-refunded 11/01/13) – FGIC Insured             
2,000    Sto Rox School District, Allegheny County, Pennsylvania, General Obligation Bonds, Series    12/10 at 100.00    AAA    2,182,000 
     2000, 5.800%, 6/15/30 (Pre-refunded 12/15/10) – MBIA Insured             
3,605    Upper Merion Area School District, Montgomery County, Pennsylvania, General Obligation Bonds,    2/13 at 100.00    Aa2 (4)    3,900,250 
     Series 2003, 5.250%, 2/15/19 (Pre-refunded 2/15/13)             
3,000    Warrington Township Municipal Authority, Bucks County, Pennsylvania, Water and Sewer Revenue    11/15 at 100.00    AAA    3,617,100 
     Bonds, Series 1991, 7.100%, 12/01/21 (Pre-refunded 11/15/15) – FGIC Insured             
5,450    West View Borough Municipal Authority, Allegheny County, Pennsylvania, Special Obligation    No Opt. Call    AAA    6,854,901 
     Bonds, Series 1985A, 9.500%, 11/15/14 (ETM)             
    Wilkes-Barre Area School District, Luzerne County, Pennsylvania, General Obligation Bonds,             
    Series 2003A:             
1,700     5.250%, 4/01/19 (Pre-refunded 4/01/14) – MBIA Insured    4/14 at 100.00    AAA    1,848,512 
2,050     5.250%, 4/01/20 (Pre-refunded 4/01/14) – MBIA Insured    4/14 at 100.00    AAA    2,229,088 
50,955    Total U.S. Guaranteed            56,340,964 
    Utilities – 7.8% (5.1% of Total Investments)             
1,250    Allegheny County Industrial Development Authority, Pennsylvania, Pollution Control Revenue    No Opt. Call    AAA    1,276,350 
     Refunding Bonds, Duquesne Light Company, Series 1999A, 4.350%, 12/01/13 – AMBAC Insured             
1,820    Beaver Falls Municipal Authority, Pennsylvania, Water and Hydroelectric Revenue Bonds, Series    No Opt. Call    AAA    1,933,823 
     2002A, 5.000%, 6/01/12 – AMBAC Insured             
2,015    Carbon County Industrial Development Authority, Pennsylvania, Resource Recovery Revenue    No Opt. Call    BBB–    2,126,369 
     Refunding Bonds, Panther Creek Partners Project, Series 2000, 6.650%, 5/01/10 (Alternative             
     Minimum Tax)             
2,430    Lehigh County Industrial Development Authority, Pennsylvania, Pollution Control Revenue Bonds,    2/15 at 100.00    AAA    2,448,249 
     Pennsylvania Power and Light Company, Series 2005, 4.750%, 2/15/27 – FGIC Insured             
3,500    Montgomery County Industrial Development Authority, Pennsylvania, Resource Recovery Revenue    No Opt. Call    AAA    3,772,230 
     Refunding Bonds, Montgomery County Montenay Project, Series 2002A, 5.250%, 11/01/13 – MBIA             
     Insured             
680    Philadelphia Gas Works, Pennsylvania, Revenue Bonds, Eighteenth Series 2004, 5.000%, 8/01/13 –    No Opt. Call    AAA    718,916 
     AGC Insured             
700    Philadelphia Gas Works, Pennsylvania, Revenue Bonds, General Ordinance, Fifth Series 2004A-1,    9/14 at 100.00    AAA    724,024 
     5.000%, 9/01/26 – FSA Insured             
2,000    Philadelphia Gas Works, Pennsylvania, Revenue Bonds, General Ordinance, Seventeenth Series    7/13 at 100.00    AAA    2,133,200 
     2003, 5.375%, 7/01/19 – FSA Insured             
3,700    York County Industrial Development Authority, Pennsylvania, Pollution Control Revenue    3/12 at 101.00    Baa1    3,903,833 
     Refunding Bonds, PSEG Power Project, Series 2001A, 5.500%, 9/01/20             
18,095    Total Utilities            19,036,994 
    Water and Sewer – 15.1% (10.0% of Total Investments)             
2,205    Bethlehem Authority, Northhampton and Lehigh Counties, Pennsylvania, Guaranteed Water Revenue    11/14 at 100.00    AAA    2,322,416 
     Bonds, Series 2004, 5.000%, 11/15/20 – FSA Insured             
1,000    Bucks County Water and Sewerage Authority, Pennsylvania, Collection System Revenue Bonds,    12/06 at 100.00    AAA    1,012,510 
     Series 1996, 5.550%, 12/01/17 – FGIC Insured             
    Bucks County Water and Sewerage Authority, Pennsylvania, Sewerage System Revenue Bonds,             
    Neshaminy Interceptor Project, Series 2004:             
655     5.250%, 6/01/14 – FSA Insured    No Opt. Call    AAA    711,906 
530     5.250%, 6/01/15 – FSA Insured    No Opt. Call    AAA    577,758 
5,000    Delaware County Industrial Development Authority, Pennsylvania, Water Facilities Revenue    10/12 at 100.00    AAA    5,219,500 
     Bonds, Philadelphia Water Company, Series 2001, 5.350%, 10/01/31 – AMBAC Insured (Alternative             
     Minimum Tax)             
    Delaware County Regional Water Quality Control Authority, Pennsylvania, Sewerage Revenue             
    Bonds, Series 2001A:             
5,325     5.100%, 5/01/20 – FGIC Insured    11/11 at 100.00    AAA    5,608,503 
1,465     5.100%, 5/01/21 – FGIC Insured    11/11 at 100.00    AAA    1,542,396 
1,400    Delaware County Regional Water Quality Control Authority, Pennsylvania, Sewerage Revenue    5/14 at 100.00    Aaa    1,500,520 
     Bonds, Series 2004, 5.250%, 5/01/20 – MBIA Insured             
2,000    Harrisburg Authority, Dauphin County, Pennsylvania, Water Revenue Refunding Bonds, Series    7/14 at 100.00    AAA    2,090,240 
     2004, 5.000%, 7/15/22 – FSA Insured             
1,540    Hempfield Township Municipal Authority, Westmoreland County, Pennsylvania, Guaranteed Sewerage    No Opt. Call    Aaa    1,650,803 
     Revenue Bonds, Series 2005, 5.000%, 9/01/15 – FSA Insured             
1,250    Lancaster Area Sewerage Authority, Pennsylvania, Sewerage Revenue Bonds, Series 2004, 5.000%,    4/14 at 100.00    AAA    1,311,725 
     4/01/20 – MBIA Insured             
    Philadelphia, Pennsylvania, Water and Wastewater Revenue Bonds, Series 2001A:             
5,525     5.375%, 11/01/20 – FGIC Insured    11/12 at 100.00    AAA    5,960,702 
5,000     5.000%, 11/01/31 – FGIC Insured    11/12 at 100.00    AAA    5,148,050 
2,150    Philadelphia, Pennsylvania, Water and Wastewater Revenue Bonds, Series 2005A, 5.000%, 7/01/23    7/15 at 100.00    AAA    2,249,524 
     – FSA Insured             
35,045    Total Water and Sewer            36,906,553 
$     349,100    Total Long-Term Investments (cost $354,280,815) – 150.8%            368,473,749 
    Short-Term Investments – 0.7% (0.4% of Total Investments)             
1,600    Puerto Rico Government Development Bank, Adjustable Refunding Bonds, Variable Rate Demand    No Opt. Call    A-1    1,600,000 
     Obligations, Series 1985, 3.050%, 12/01/15 – MBIA Insured (5)             
$         1,600    Total Short-Term Investments (cost $1,600,000)            1,600,000 
    Total Investments (cost $355,880,815) – 151.5%            370,073,749 
    Other Assets Less Liabilities – 2.6%            6,138,596 
    Preferred Shares, at Liquidation Value – (54.1)%            (132,000,000) 
    Net Assets Applicable to Common Shares – 100%           $   244,212,345 

(1)    All percentages shown in the Portfolio of Investments are based on net assets applicable to Common shares 
    unless otherwise noted. 
(2)    Optional Call Provisions: Dates (month and year) and prices of the earliest optional call or redemption. There 
    may be other call provisions at varying prices at later dates. Certain mortgage-backed securities may be 
    subject to periodic principal paydowns. 
(3)    Ratings: Using the higher of Standard & Poor’s or Moody’s rating. Ratings below BBB by Standard & Poor’s 
    Group or Baa by Moody’s Investor Service, Inc. are considered to be below investment grade. 
(4)    Backed by an escrow or trust containing sufficient U.S. Government or U.S. Government agency securities 
    which ensure the timely payment of principal and interest. Such investments are normally considered 
    to be equivalent to AAA rated securities. 
(5)    Investment has a maturity of more than one year, but has variable rate and demand features which qualify it 
    as a short-term investment. The rate disclosed that in effect at the end of the reporting period. This rate 
    changes periodically based on market conditions or a specified market index. 
N/R    Not rated. 
WI/DD    Purchased on a when-issued or delayed delivery basis. 
(ETM)    Escrowed to maturity. 

Income Tax Information

The following information is presented on an income tax basis. Differences between amounts for financial statement and federal income tax purposes are primarily due to the treatment of paydown gains and losses, timing differences in recognizing taxable market discount and timing differences in recognizing certain gains and losses on investment transactions.

At March 31, 2006, the cost of investments was $355,870,686.

Gross unrealized appreciation and gross unrealized depreciation of investments at March 31, 2006, were as follows:

Gross unrealized:     
  Appreciation    $15,471,830 
  Depreciation    (1,268,767) 
Net unrealized appreciation (depreciation) of investments    $14,203,063 

Item 2. Controls and Procedures.

  1. The registrant's principal executive and principal financial officers, or persons performing similar functions, have concluded that the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the "1940 Act") (17 CFR 270.30a-3(c))) are effective, as of a date within 90 days of the filing date of this report that includes the disclosure required by this paragraph, based on their evaluation of the controls and procedures required by Rule 30a-3(b) under the 1940 Act (17 CFR 270.30a-3(b)) and Rule 13a-15(b) or 15d-15(b) under the Securities Exchange Act of 1934 (17 CFR 240.13a-15(b) or 240.15d-15(b)).
  2. There were no changes in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the 1940 Act (17 CFR 270.30a-3(d)) that occurred during the registrant's last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting.

Item 3. Exhibits.

File as exhibits as part of this Form a separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the 1940 Act (17 CFR 270.30a-2(a)), exactly as set forth below: EX-99 CERT Attached hereto.


SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

(Registrant)         Nuveen Pennsylvania Investment Quality Municipal Fund        

By (Signature and Title)*          /s/ Jessica R. Droeger                     
                                                    Jessica R. Droeger
                                                    Vice President and Secretary

Date         May 30, 2006        

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

By (Signature and Title)*         /s/ Gifford R. Zimmerman                    
                                                   Gifford R. Zimmerman
                                                   Chief Administrative Officer (principal executive officer) 

Date         May 30, 2006        

By (Signature and Title)*         /s/ Stephen D. Foy                              
                                                   Stephen D. Foy
                                                   Vice President and Controller (principal financial officer) 

Date        May 30, 2006        

* Print the name and title of each signing officer under his or her signature.