UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number: 811-06591 Morgan Stanley Quality Municipal Income Trust (Exact name of registrant as specified in charter) 1221 Avenue of the Americas, New York, New York 10020 (Address of principal executive offices) (Zip code) Ronald E. Robison 1221 Avenue of the Americas, New York, New York 10020 (Name and address of agent for service) Registrant's telephone number, including area code: 212-762-4000 Date of fiscal year end: October 31, 2006 Date of reporting period: January 31, 2006 ITEM 1. SCHEDULE OF INVESTMENTS. The Trust's schedule of investments as of the close of the reporting period prepared pursuant to Rule 12-12 of Regulation S-X is as follows: MORGAN STANLEY QUALITY MUNICIPAL INCOME TRUST PORTFOLIO OF INVESTMENTS January 31, 2006 (unaudited) PRINCIPAL AMOUNT IN COUPON MATURITY THOUSANDS RATE DATE VALUE ---------------------------------------------------------------------------------------------------------------------------------- Tax-Exempt Municipal Bonds (152.0%) General Obligation (22.5%) $5,000 California, Various Purpose dtd 05/01/03 5.25% 02/01/19 $5,416,700 4,000 Los Angeles, California, Ser 2004 A (MBIA) 5.00 09/01/24 4,215,200 2,700 Adams & Arapahoe Counties Joint School District # 32, Colorado, 5.125 12/01/21 2,887,974 Ser 2003A (FSA) 350 Denver School District #1, Colorado, Ser 1999 (FGIC) 5.25 12/01/16 374,556 4,000 Florida Board of Education, Capital Outlay Refg 2002 Ser C (MBIA) 5.00 06/01/20 4,241,920 Hawaii, 5,000 1992 Ser BZ 6.00 10/01/10 5,522,300 8,000 1992 Ser BZ 6.00 10/01/11 8,954,080 5,000 Honolulu City & County, Hawaii, ROLS RR II R 237-3 (MBIA) 7.356[+/+] 03/01/26 5,673,150 4,000 Cook County, Illinois, Ser 1992 C (FGIC) 6.00 11/15/09 4,356,160 6,000 Illinois, First Ser 2002 (MBIA) 5.375 07/01/20 6,503,220 2,000 Schaumburg, Illinois, Ser 2004 B (FGIC) 5.25 12/01/34 2,133,000 10,000 Indiana Bond Bank, Revolving Fund Ser 2001 A 5.00 02/01/23 10,459,300 New York City, New York, 2,000 2006 Ser F 5.00 09/01/23 2,093,740 1,000 2005 Ser G 5.00 12/01/23 1,043,840 Pennsylvania, 5,000 First Ser 2003 RITES PA - 1112 A (MBIA) 6.202[+/+] 01/01/18 5,652,900 5,000 First Ser 2003 RITES PA - 1112 B (MBIA) 6.202[+/+] 01/01/19 5,815,200 5,000 Northside Independant School District, Texas, Bldg & Refg 5.00 02/15/26 5,133,050 Ser 2001 (PSF) 2,000 King County, Washington, Refg 1998 Ser B (MBIA) 5.25 01/01/34 2,071,280 2,500 Spokane School District #81, Washington, Ser 2005 (MBIA) 0.00# 06/01/23 2,278,850 ----- --------- 78,550 84,826,420 ------ ---------- Educational Facilities Revenue (9.3%) 3,700 University of Alabama, Ser 2004-A (MBIA) 5.25 07/01/22 4,038,698 Boulder County, Colorado, 1,750 University Corp for Atmospheric Research Ser 2002 (MBIA) 5.375 09/01/18 1,904,368 1,750 University Corp for Atmospheric Research Ser 2002 (MBIA) 5.375 09/01/21 1,897,175 2,000 Colorado Educational & Cultural Facilities Authority, Peak to Peak 5.25 08/15/34 2,111,860 Charter School Refg & Impr Ser 2004 (XLCA) 2,000 Illinois Educational Facilities Authority, University of Chicago 5.125 07/01/38 2,040,660 Ser 1998 A 8,000 North Carolina Capital Facilities Finance Agency, Duke University 5.00 10/01/41 8,288,080 Ser 2005 A 2,000 Ohio State University, General Receipts Ser 2002 A 5.125 12/01/31 2,082,260 2,000 Pennsylvania State University, Refg Ser 2002 5.25 08/15/14 2,206,680 3,000 Charleston Educational Excellence Financing Corporation, South Carolina, 5.25 12/01/29 3,162,360 Series 2005 7,000 University of Vermont & State Agricultural College, Ser 2005 (MBIA) 5.00 10/01/40 7,257,600 ----- --------- 33,200 34,989,741 ------ ---------- Electric Revenue (17.7%) 6,000 Salt River Project Agricultural Improvement & Power District, Arizona, 5.00 01/01/31 6,210,660 2002 Ser B 5,000 California Department of Water Resources, Power Supply 5.75 05/01/17 5,656,050 Ser 2002 A 3,300 Jacksonville Electric Authority, Florida, St Johns Power Park Refg 5.00 10/01/18 3,495,690 Issue 2 Ser 17 2,000 Orlando Utilities Commission, Florida, Water & Electric Ser 2001 5.25 10/01/19 2,162,120 2,000 Indiana Municipal Power Agency, 2004 Ser A (FGIC) 5.00 01/01/32 2,069,000 2,000 Western Minnesota Municipal Power Agency, 2003 Ser A (MBIA) 5.00 01/01/30 2,072,620 5,000 Nebraska Public Power District, Ser 2005 C (FGIC) 5.00 01/01/41 5,179,800 Long Island Power Authority, New York, 4,000 New York, Ser 2003 B 5.25 06/01/13 4,327,280 5,325 New York, Ser 2003 C 5.50 09/01/19 5,786,624 South Carolina Public Service Authority, 3,700 Refg Ser 2002 D (Ambac) 5.00 01/01/20 3,919,225 5,000 Refg Ser 2002 D (FSA) 5.00 01/01/20 5,295,950 7,000 Refg Ser 2003 A (Ambac) 5.00 01/01/22 7,370,790 7,000 Energy Northwest, Washington, Columbia Refg Ser 2001 C (MBIA) 5.75 07/01/18 7,768,460 5,000 Grant County Public Utility District #2, Washington, Electric Refg 5.375 01/01/18 5,368,400 ----- Ser 2001 H (FSA) --------- 62,325 66,682,669 ------ ---------- Hospital Revenue (10.8%) 3,500 Birmingham-Carraway Special Care Facilities Financing Authority, 5.875 08/15/15 3,576,300 Alabama, Carraway Methodist Health Ser 1995 A (Connie Lee) 2,000 California Health Facilities Financing Authority, Cedars-Sinai 5.00 11/15/34 2,025,980 Medical Center, Ser 2005 3,500 Highlands County Health Facilities Authority, Florida, 5.00 11/15/35 3,555,265 Adventist/Sunbelt Ser 2005 A 6,000 Indiana Health & Educational Facility Financing Authority, Clarian 5.25 02/15/40 6,165,300 Health Ser A Maryland Health & Higher Educational Facilities Authority, 5,000 University of Maryland Medical Ser 2001 5.25 07/01/28 5,164,950 1,500 University of Maryland Medical Ser 2002 6.00 07/01/32 1,629,780 7,000 Michigan State Hospital Financing Authority, McLaren Health Care 5.00 08/01/35 7,129,850 Ser 2005 C 2,000 University of Medicine & Dentistry, New Jersey, Ser 2004 COPs (MBIA) 5.25 06/15/23 2,153,420 5,370 Cuyahoga County, Ohio, Cleveland Clinic Health Ser 2003 A 6.00 01/01/32 5,912,048 3,000 Lorain County, Ohio, Catholic Healthcare Partners Ser 2001 A 5.625 10/01/17 3,233,970 ----- --------- 38,870 40,546,863 ------ ---------- Industrial Development/Pollution Control Revenue (4.7%) 6,000 California Pollution Control Financing Authority, Keller Canyon 6.875 11/01/27 6,018,540 Landfill Co/Browning-Ferris Industries Inc Ser 1992 (AMT) 5,000 Michigan Strategic Fund, Detroit Edison Co Ser 2001 C (AMT) 5.65 09/01/29 5,210,500 3,000 Brazos River Authority, Texas, TXU Electric Co Ser 1999 C (AMT) 7.70 03/01/32 3,555,630 2,000 Sabine River Authority, Texas, TXU Electric Co Refg Ser 2001 B 5.75 05/01/30 2,118,000 (AMT) (Mandatory Tender 11/01/11) 1,000 Tobacco Settlement Financing Corporation, Virginia, Ser 2005 5.625 06/01/37 1,017,340 ----- --------- 17,000 17,920,010 ------ ---------- Mortgage Revenue - Multi-Family (1.0%) 3,650 Illinois Housing Development Authority, Ser I 6.625 09/01/12 3,655,001 ----- --------- Mortgage Revenue - Single Family (2.2%) 225 Idaho Housing Agency, 1992 Ser E (AMT) 6.75 07/01/12 225,297 1,885 Idaho Housing & Finance Association, 2000 Ser E (AMT) 6.00 01/01/32 1,900,777 300 Missouri Housing Development Commission, Homeownership 6.25 03/01/31 302,307 Ser 2000 B-1 (AMT) 3,435 Montana Board of Housing, 2000 Ser B (AMT) 6.00 12/01/29 3,478,762 2,240 New Jersey Housing Mortgage Finance Authority, Home Buyer 5.875 10/01/31 2,249,027 ----- Ser 2000 CC (AMT) (MBIA) --------- 8,085 8,156,170 ----- --------- Public Facilities Revenue (5.5%) 3,000 Broward County School Board, Florida, Ser 2001 A COPs (FSA) 5.00 07/01/26 3,102,120 4,000 Orange County School Board, Florida, Ser 2001 A COPs (Ambac) 5.25 08/01/14 4,346,240 3,000 Albuquerque, New Mexico, Gross Receipts Refg Ser 1999 C 5.25 07/01/17 3,148,350 3,000 Pennsylvania Public School Building Authority, Philadelphia School 5.00 06/01/33 3,095,460 District Ser 2003 (FSA) 4,000 Puerto Rico Public Buildings Authority, Refg Ser J (Ambac) 5.00 07/01/36 4,283,880 (Mandatory Tender 07/01/12) 2,500 Milwaukee Redevelopment Authority, Wisconsin, Ser 2003 A 5.125 08/01/23 2,633,975 ----- (Ambac) --------- 19,500 20,610,025 ------ ---------- Recreational Facilities Revenue (0.4%) 1,400 Marion County Convention & Recreational Facilities Authority, Indiana, 5.00 06/01/21 1,465,030 ----- Refg Ser 2003 A (Ambac) --------- Resource Recovery Revenue (0.8%) 3,000 Northeast Maryland Waste Disposal Authority, Montgomery County 5.50 04/01/16 3,241,920 ----- Ser 2003 (AMT) (Ambac) --------- Retirement & Life Care Facilities Revenue (0.4%) 1,500 Missouri Health & Educational Facilities Authority, Lutheran Senior 5.375 02/01/35 1,543,110 ----- Services Ser 2005 A --------- Transportation Facilities Revenue (30.0%) 3,000 Alaska International Airports, Ser 2002 B (Ambac) 5.25 10/01/27 3,167,220 2,000 Arizona Transportation Board, Highway Refg Ser 2002 A 5.25 07/01/19 2,189,700 3,000 Phoenix Civic Improvement Corporation, Arizona, Airport Ser 2002 B 5.25 07/01/32 3,100,440 (AMT) (FGIC) 5,000 California Infrastructure & Economic Development Bank, Bay Area 5.00 07/01/36 5,167,150 Toll Bridges Seismic Retrofit First Lien Ser 2003 A (Ambac) 1,900 Orange County Transportation Authority, California, Toll Road 5.00 08/15/20 2,018,256 Express Lanes Refg Ser 2003 A (Ambac) 4,000 Port of Oakland, California, Ser 2002 L (AMT) (FGIC) 5.00 11/01/32 4,063,360 2,000 Mid-Bay Bridge Authority, Florida, Refg Ser 1993 A (Ambac) 5.95 10/01/22 2,148,420 3,000 Atlanta, Georgia, Airport Ser 2004 J (FSA) 5.00 01/01/34 3,096,810 Georgia Road & Tollway Authority, 6,000 Ser 2004 5.00 10/01/22 6,356,700 9,000 Ser 2004 5.00 10/01/23 9,533,250 4,000 Chicago, Illinois, O' Hare Int'l Airport Third Lien Ser 2003 B-2 (AMT) 5.75 01/01/23 4,398,200 (FSA) 6,335 Indiana Transportation Finance Authority, Ser 2000 (FGIC) 5.375 12/01/25 6,746,078 3,000 Wayne County, Michigan, Detroit Metropolitan Wayne County Airport 5.50 12/01/17 3,226,650 Refg Ser 2002 D (AMT) (FGIC) Clark County, Nevada, 4,000 Airport SubLien Ser 2004 A-1 (AMT) (FGIC) 5.50 07/01/20 4,343,160 1,000 Jet Aviation Fuel Tax Ser 2003 C (AMT) (Ambac) 5.375 07/01/19 1,066,500 1,100 Jet Aviation Fuel Tax Ser 2003 C (AMT) (Ambac) 5.375 07/01/20 1,170,994 2,000 Jet Aviation Fuel Tax Ser 2003 C (AMT) (Ambac) 5.375 07/01/22 2,117,380 5,000 New Jersey Transportation Trust Fund Authority, 1999 Ser A 5.75 06/15/20 5,803,150 12,000 New Jersey Turnpike Authority, Ser 2003 A (FGIC)++ 5.00 01/01/27 12,508,800 10,000 Metropolitan Transportation Authority, New York, Transportation 5.00 11/15/25 10,530,500 Refg Ser 2002 A (FGIC) Triborough Bridge & Tunnel Authority, New York, 5,000 Refg 2002 E (MBIA) 5.25 11/15/22 5,399,850 915 Ser 2001 A 5.00 01/01/32 937,308 2,000 Harris County, Texas, Toll Road Sr Lien Ser 2005 A (FSA) 5.25 08/15/35 2,078,380 Houston, Texas, 6,000 Airport Sub Lien Ser 2000 A (AMT) (FSA) 5.875 07/01/17 6,424,800 5,000 Airport Sub Lien Ser 2000 A (AMT) (FSA) 5.625 07/01/30 5,295,700 ----- --------- 106,250 112,888,756 ------- ----------- Water & Sewer Revenue (34.6%) 3,800 Phoenix Civic Improvment Corporation, Arizona, Jr Lien Water 5.00 07/01/26 3,953,064 Ser 2002 (FGIC) 3,000 East Bay Municipal Utility District, California, Water Ser 2001 (MBIA) 5.00 06/01/26 3,098,250 3,720 San Diego County Water Authority, California, Ser 2002 A COPs 5.00 05/01/27 3,853,511 (MBIA) 3,500 Broward County, Florida, Water & Sewer Utility Ser 2003 (MBIA) 5.00 10/01/24 3,687,600 10,000 Augusta, Georgia, Water & Sewerage Ser 2000 (FSA) 5.25 10/01/30 10,639,800 5,000 Louisville & Jefferson County Metropolitan Sewer District, Kentucky, 5.75 05/15/33 5,403,200 Ser 1999 A (FGIC) 5,345 Las Vegas Vallley Water District, Nevada, Water Improvement 5.25 06/01/20 5,778,907 Refg Ser 2003 A (FGIC) 10,000 Passaic Valley Sewerage Commisioners, New Jersey, Ser F (FGIC) 5.00 12/01/20 10,653,800 3,000 Rio Rancho, New Mexico, Water & Wastewater Refg Ser 1999 (Ambac) 5.25 05/15/19 3,147,600 New York City Municipal Water Finance Authority, 3,500 2003 Ser A 5.375 06/15/19 3,799,950 18,000 2001 Ser B 5.00 06/15/26 18,532,439 10,000 2004 Ser A 5.00 06/15/35 10,294,400 4,500 Charlotte, North Carolina, Water & Sewer Ser 2001 5.125 06/01/26 4,739,085 10,000 Austin, Texas, Water & Wastewater Refg Ser 2001 A (FSA) 5.125 05/15/27 10,328,600 15,000 Houston, Texas, Combined Utility First Lien Refg 2004 Ser A (FGIC) 5.25 05/15/23 16,129,950 13,960 San Antonio, Texas, Water & Refg Ser 2001 (FGIC) 5.00 05/15/26 14,347,111 2,000 Fairfax County Water Authority, Virginia, Refg Ser 1992 6.00 04/01/22 2,096,040 ----- --------- 124,325 130,483,307 ------- ----------- Other Revenue (8.2%) 10,000 California, Economic Recovery, Ser 2004 A 5.00 07/01/16 10,718,700 3,000 Golden State Tobacco Securitization Corporation, California, 5.00 06/01/29 3,082,530 Enhanced Asset Backed Ser 2005 A (Ambac) 2,000 New Jersey Economic Development Authority, Cigarette Tax 5.75 06/15/29 2,111,960 Ser 2004 2,000 New York City Transitional Finance Authority, New York, 5.50 11/01/26 2,181,880 Refg 2003 Ser A 10,000 Tobacco Settlement Financing Corporation, New York, State 5.50 06/01/17 10,825,700 Contingency Ser 2003 B-1C 2,000 Philadelphia, Pennsylvania, Gas Works First Ser 1998 B (FSA) 5.00 07/01/28 2,047,420 ----- --------- 29,000 30,968,190 ------ ---------- Refunded (3.9%) 5,000 Phoenix Industrial Development Authority, Arizona, Capital Mall LLC 5.50 09/15/10+ 5,410,300 Ser 2000 (Ambac) 3,400 Maine Turnpike Authority, Ser 2000 (FGIC) 5.50 07/01/10+ 3,701,444 5,000 Dauphin County General Authority, Pennsylvania, HAPSO Group 6.25 07/01/16 5,748,450 ----- Inc/The Western Pennsylvania Hospital Refg 1992 Ser A (MBIA) (ETM) --------- 13,400 14,860,194 ------ ---------- 540,055 Total Tax-Exempt Municipal Bonds (Cost $545,149,113) 572,837,406 ------- ----------- Short Term Tax-Exempt Municipal Bonds (1.6%) 400 Indiana Health Facility Financing Authority, Clarian Health Obligated 3.09* 03/01/30 400,000 Group Ser 2000 B (Demand 02/01/06) 1,600 Missouri Development Finance Board, Nelson Gallery Foundation 3.05* 12/01/33 1,600,000 Ser 2001 B (MBIA) (Demand 02/01/06) 3,950 Nassau County Industrial Development Agency, 1999 Cold Spring 3.00* 01/01/34 3,950,000 ----- Harbor Lab (Demand 02/01/06) --------- 5,950 Total Short-Term Tax-Exempt Municipal Bonds (Cost $5,950,000) 5,950,000 ----- --------- $546,005 Total Investments (Cost $551,099,113) (a) (b) 153.6% 578,787,406 ======== Other Assets In Excess Of Liabilities 1.6 6,104,111 Preferred Shares of Beneficial Interest (55.2) (208,137,816) ------ ------------- Net Assets Applicable to Common Shareholders 100.0% $376,753,701 ====== ============= --------------- Note: The categories of investments are shown as a percentage of net assets applicable to common shareholders. AMT Alternative Minimum Tax. COPs Certificates of Participation. ETM Escrowed to maturity. PSF Texas Permanent School Fund Guarantee Program. RITES Residual Interest Tax-Exempt Securities (Illiquid securities). ROLS Reset Option Longs (Illiquid securities). + Prerefunded to call date shown. ++ A portion of this security has been physically segregated in connection with open futures contracts in the amount of $397,500. [+/+] Current coupon rate for inverse floating rate municipal obligation. This rate resets periodically as the auction rate on the related security changes. Positions in inverse floating rate municipal obligations have a total value of $17,141,250 which represents 4.5% of net assets applicable to common shareholders. # Currently a zero coupon security; will convert to 5.125 % on January 1, 2008. * Current coupon of variable rate demand obligation. (a) Securities have been designated as collateral in an amount equal to $95,509,920 in connection with open futures contracts. (b) The aggregate cost for federal income tax purposes approximates the aggregate cost for book purposes. The aggregate gross unrealized appreciation is $28,116,953 and the aggregate gross unrealized depreciation is $428,660, resulting in net unrealized appreciation of $27,688,293. Bond Insurance: -------------- Ambac Ambac Assurance Corporation. Connie Lee Connie Lee Insurance Company - a wholly owned subsidiary of Ambac Assurance Corporation. FGIC Financial Guaranty Insurance Company. FSA Financial Security Assurance Inc. MBIA Municipal Bond Investors Assurance Corporation. XLCA XL Capital Assurance Inc. Futures Contracts Open at January 31, 2006: DESCRIPTION, UNDERLYING NUMBER OF DELIVERY MONTH FACE AMOUNT UNREALIZED CONTRACTS LONG/SHORT AND YEAR AT VALUE APPRECIATION ---------------- --------------- -------------------------------------- ---------------------- ---------------------- 750 Short U.S. Treasury Notes 5 Yr March 2006 $(79,300,785) $273,323 150 Short U.S. Treasury Notes 10 Yr March 2006 (16,265,625) 65,212 ---------------------- Total Unrealized Appreciation.......................... $338,535 ====================== Geographic Summary of Investments Based on Market Value as a Percent of Total Investments Alabama 1.3% Alaska 0.6 Arizona 3.6 California 9.6 Colorado 1.6 Florida 4.6 Georgia 5.1 Hawaii 3.5 Idaho 0.4 Illinois 4.0 Indiana 4.7 Kentucky 0.9 Maine 0.6 Maryland 1.7 Michigan 2.7 Minnesota 0.4 Missouri 0.6 Montana 0.6 Nebraska 0.9 Nevada 2.5 New Jersey 6.1 New Mexico 1.1 New York 13.8 North Carolina 2.3 Ohio 1.9 Pennsylvania 4.2 Puerto Rico 0.7 South Carolina 3.4 Texas 11.3 Vermont 1.3 Virginia 0.5 Washington 3.0 Wisconsin 0.5 --- Total+ 100.0% ====== -------------- + Does not include open short futures contracts with an underlying face amount of $95,566,410 with unrealized appreciation of $338,535. ITEM 2. CONTROLS AND PROCEDURES. (a) The Trust's principal executive officer and principal financial officer have concluded that the Trust's disclosure controls and procedures are sufficient to ensure that information required to be disclosed by the Trust in this Form N-Q was recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission's rules and forms, based upon such officers' evaluation of these controls and procedures as of a date within 90 days of the filing date of the report. (b) There were no changes in the Trust's internal control over financial reporting that occurred during the registrant's fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Trust's internal control over financial reporting. ITEM 3. EXHIBITS. (a) A separate certification for each principal executive officer and principal financial officer of the registrant are attached hereto. 2 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. Morgan Stanley Quality Municipal Income Trust /s/ Ronald E. Robison Ronald E. Robison Principal Executive Officer March 23, 2006 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed by the following persons on behalf of the registrant and in the capacities and on the dates indicated. /s/ Ronald E. Robison Ronald E. Robison Principal Executive Officer March 23, 2006 /s/ Francis Smith Francis Smith Principal Financial Officer March 23, 2006 3 EXHIBIT 3 A1 CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER I, Ronald E. Robison, certify that: 1. I have reviewed this report on Form N-Q of Morgan Stanley Quality Municipal Income Trust; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the schedules of investments included in this report fairly present in all material respects the investments of the registrant as of the end of the fiscal quarter for which the report is filed; 4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) for the registrant and have: (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; (b) Omitted; (c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report, based on such evaluation; and (d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and 5. The registrant's other certifying officer(s) and I have disclosed to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions): (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial information; and (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting. Date: March 23, 2006 /s/ Ronald E. Robison Ronald E. Robison Principal Executive Officer 4 EXHIBIT 3 A2 CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER I, Francis Smith, certify that: 1. I have reviewed this report on Form N-Q of Morgan Stanley Quality Municipal Income Trust; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; 3. Based on my knowledge, the schedules of investments included in this report fairly present in all material respects the investments of the registrant as of the end of the fiscal quarter for which the report is filed; 4. The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Rule 30a-3(c) under the Investment Company Act of 1940) for the registrant and have: (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; (b) Omitted; (c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of a date within 90 days prior to the filing date of this report, based on such evaluation; and (d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and 5. The registrant's other certifying officer(s) and I have disclosed to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions): (a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize, and report financial information; and (b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting. Date: March 23, 2006 /s/ Francis Smith Francis Smith Principal Financial Officer 5