EXHIBIT 99.a6
AMENDMENT NO. 5 TO
AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST
OF AMERICAN CENTURY INVESTMENT TRUST
THIS AMENDMENT NO. 5 TO AMENDED AND RESTATED AGREEMENT AND DECLARATION OF
TRUST is made as of the 10th day of March, 2006 by the Trustees hereunder.
WHEREAS, the Board of Trustees have executed an Amendment and Restatement
to the Agreement and Declaration of Trust dated March 26, 2004, amended June 14,
2004, May 1, 2005, June 30, 2005 and December 12, 2005;
WHEREAS, the Board of Trustees have determined that it is in the best
interests of American Century Investment Trust (the "Trust") to add a new series
titled NT Diversified Bond Fund (the "New Series"), and
WHEREAS, pursuant to Article VIII, Section 8 of the Declaration of Trust,
the Trustees wish to amend the Declaration of Trust to reflect this change.
NOW, THEREFORE, BE IT RESOLVED, the Declaration of Trust is hereby amended,
by deleting the text of Schedule A in its entirety and inserting in lieu thereof
the attached Schedule A.
IN WITNESS WHEREOF, the Trustees do hereto set their hands as of the date
written above.
TRUSTEES OF THE AMERICAN CENTURY INVESTMENT TRUST
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SCHEDULE A
AMERICAN CENTURY INVESTMENT TRUST
Pursuant to Article III, Section 6, the Trustees hereby establish and designate
the following Series as Series of the Trust (and the Classes thereof) with the
relative rights and preferences as described in Section 6:
SERIES CLASS DATE OF ESTABLISHMENT
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Prime Money Market Fund Investor 06/13/1993
Advisor 06/01/1998
A Class 05/08/2002
B Class 05/08/2002
C Class 05/01/2001
Diversified Bond Fund Investor 08/01/2001
Advisor 08/01/2001
Institutional 08/01/2001
A Class 05/08/2002
B Class 05/08/2002
C Class 05/08/2002
R Class 06/30/2005
Premium Money Market Fund Investor 08/01/2001
High-Yield Fund Investor 05/08/2002
Advisor 05/08/2002
Institutional 06/14/2004
A Class 05/08/2002
B Class 05/08/2002
C Class 05/08/2002
R Class 06/30/2005
Inflation Protection Bond Fund Investor 05/01/2005
Institutional 05/01/2005
A Class 05/01/2005
B Class 05/01/2005
C Class 05/01/2005
R Class 05/01/2005
High-Yield Bond Fund Investor 12/12/2005
Institutional 12/12/2005
A Class 12/12/2005
B Class 12/12/2005
C Class 12/12/2005
R Class 12/12/2005
Select Bond Fund Investor 12/12/2005
Institutional 12/12/2005
A Class 12/12/2005
B Class 12/12/2005
C Class 12/12/2005
R Class 12/12/2005
NT Diversified Bond Fund Institutional 05/01/2006
This Schedule A shall supersede any previously adopted Schedule A to the
Declaration of Trust.
