AMENDMENT NO. 8 TO
AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST
OF AMERICAN CENTURY INVESTMENT TRUST
THIS AMENDMENT NO. 8 TO AMENDED AND RESTATED AGREEMENT AND DECLARATION OF TRUST is made as of
the 31st day of August, 2007, by the Trustees hereunder.
WHEREAS, the Board of Trustees has determined that it is in the best interests of American
Century Investment Trust (the "Trust") to take the following actions:
(a) to combine the A Class of the series listed below with the Advisor Class of the same
respective series, effective September 4, 2007, as approved by the Board of Trustees at its
meeting on December 8, 2006; and
(b) for each series listed below, immediately thereafter to re-designate the Advisor Class as
the A Class of the same respective series, as approved by the Board of Trustees at its meeting
on December 8, 2006, following which actions each newly designated A Class will have all the
rights and preferences of the A Class, including the revised fee structure approved by each
Fund's Advisor Class shareholders at a meeting on July 27, 2007:
o Diversified Bond Fund
o High-Yield Fund
o Prime Money Market Fund;
NOW, THEREFORE, BE IT RESOLVED, that each of the aforementioned actions shall take effect as
indicated in the first recital hereto; and
RESOLVED, that Schedule A of the Amended and Restated Agreement and Declaration of Trust for
the Trust is hereby amended to reflect such actions by deleting the text thereof in its entirety and
inserting in lieu therefore the Schedule A attached hereto.
IN WITNESS WHEREOF, a majority of the Trustees do hereto set their hands as of the date first
referenced above.
Trustees of the American Century Investment Trust
/s/ Xxxxxxxx X. Xxxxxx /s/ Xxxxx X. Xxxxxxx
Xxxxxxxx X. Xxxxxx Xxxxx X. Xxxxxxx
/s/ Xxxx Xxxxxxxxxxx /s/ Xxxxx X. Xxxxxxx
Xxxx Xxxxxxxxxxx Xxxxx X. Xxxxxxx
/s/ Xxxxxx X. Xxxxxx /s/ Xxxx X. Xxxxxx
Xxxxxx X. Xxxxxx Xxxx X. Xxxxxx
/s/ Xxxxxxx X. Xxxx /s/ Xxxxxx X. Xxxxxxx
Xxxxxxx X. Xxxx Xxxxxx X. Xxxxxxx
A-2
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
Prime Money Market Fund Investor 06/13/1993
A Class 06/01/1998
B Class 05/08/2002
C Class 05/01/2001
Diversified Bond Fund Investor 08/01/2001
Institutional 08/01/2001
A Class 08/01/2001
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
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
Series Class Date of Establishment
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
Core Plus Fund Investor 11/29/2006
Institutional 11/29/2006
A Class 11/29/2006
B Class 11/29/2006
C Class 11/29/2006
R Class 11/29/2006
Short Duration Fund Investor 11/29/2006
Institutional 11/29/2006
A Class 11/29/2006
B Class 11/29/2006
C Class 11/29/2006
R Class 11/29/2006
This Schedule A shall supersede any previously adopted Schedule A to the Declaration of Trust.