0001083839-18-000091.txt : 20180530 0001083839-18-000091.hdr.sgml : 20180530 20180530162404 ACCESSION NUMBER: 0001083839-18-000091 CONFORMED SUBMISSION TYPE: NSAR-B PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20180331 FILED AS OF DATE: 20180530 DATE AS OF CHANGE: 20180530 EFFECTIVENESS DATE: 20180530 FILER: COMPANY DATA: COMPANY CONFORMED NAME: NUVEEN SELECT TAX FREE INCOME PORTFOLIO CENTRAL INDEX KEY: 0000883618 IRS NUMBER: 363806843 FISCAL YEAR END: 0331 FILING VALUES: FORM TYPE: NSAR-B SEC ACT: 1940 Act SEC FILE NUMBER: 811-06548 FILM NUMBER: 18868427 BUSINESS ADDRESS: STREET 1: 333 W WACKER DR CITY: CHICAGO STATE: IL ZIP: 60606 BUSINESS PHONE: 3129178200 MAIL ADDRESS: STREET 1: 333 W WACKER DR CITY: CHICAGO STATE: IL ZIP: 60606 NSAR-B 1 nxp0318answer.fil PAGE 1 000 B000000 03/31/2018 000 C000000 0000883618 000 D000000 N 000 E000000 NF 000 F000000 Y 000 G000000 N 000 H000000 N 000 I000000 6.1 000 J000000 A 001 A000000 NUVEEN SELECT TAX-FREE INCOME PORTFOLIO 001 B000000 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FOY TITLE VP & CONTROLLER EX-99.77B ACCT LTTR 2 kpmg77b0318.txt Report of Independent Registered Public Accounting Firm To the Shareholders and Board of Trustees of Nuveen Funds: In planning and performing our audits of the financial statements and financial highlights of each of the Nuveen Funds listed in Exhibit A attached (the Funds ), as of and for the year or period ended March 31, 2018, in accordance with the standards of the Public Company Accounting Oversight Board (United States), we considered the Funds internal control over financial reporting, including controls over safeguarding securities, as a basis for designing our auditing procedures for the purpose of expressing our opinion on the financial statements and financial highlights and to comply with the requirements of Form N-SAR, but not for the purpose of expressing an opinion on the effectiveness of the Funds internal control over financial reporting. Accordingly, we express no such opinion. The management of the Funds is responsible for establishing and maintaining effective internal control over financial reporting. In fulfilling this responsibility, estimates and judgments by management are required to assess the expected benefits and related costs of controls. A companys internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements and financial highlights for external purposes in accordance with U.S. generally accepted accounting principles (GAAP). A companys internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements and financial highlights in accordance with GAAP, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the companys assets that could have a material effect on the financial statements. Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate. A deficiency in internal control over financial reporting exists when the design or operation of a control does not allow management or employees, in the normal course of performing their assigned functions, to prevent or detect misstatements on a timely basis. A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of the Funds annual or interim financial statements or financial highlights will not be prevented or detected on a timely basis. Our consideration of the Funds internal control over financial reporting was for the limited purpose described in the first paragraph and would not necessarily disclose all deficiencies in internal control that might be material weaknesses under standards established by the Public Company Accounting Oversight Board (United States). However, we noted no deficiencies in the Funds internal control over financial reporting and its operation, including controls over safeguarding securities, that we consider to be a material weakness as defined above as of March 31, 2018. This report is intended solely for the information and use of management and the Board of Trustees of the Funds and the Securities and Exchange Commission, and is not intended to be and should not be used by anyone other than these specified parties. /s/ KPMG LLP Chicago, Illinois May 25, 2018 Exhibit A Closed-End Funds Nuveen Select Maturities Municipal Fund Nuveen Select Tax-Free Income Portfolio Nuveen Select Tax-Free Income Portfolio 2 Nuveen Select Tax-Free Income Portfolio 3 Nuveen California Select Tax-Free Income Portfolio Nuveen New York Select Tax-Free Income Portfolio Nuveen Build America Bond Fund Nuveen Build America Bond Opportunity Fund 1 1 1-A