<PAGE>
EXHIBIT NO. 99.1(p)
FORM OF
MFS SERIES TRUST I
CERTIFICATION OF AMENDMENT
TO DECLARATION OF TRUST
REDESIGNATION OF SERIES
Pursuant to Section 6.9 of the Amended and Restated Declaration of
Trust dated January 6, 1995, as amended, (the "Declaration"), of MFS Series
Trust I (the "Trust"), the Trustees of the Trust hereby redesignate an existing
series of Shares (as defined in the Declaration) as follows:
The series designated as MFS Equity Income Fund shall be
redesignated as MFS Value Fund.
Pursuant to Section 6.9(h) of the Declaration, this redesignation of
series of Shares shall be effective upon the execution of a majority of the
Trustees of the Trust.
<PAGE>
IN WITNESS WHEREOF, a majority of the Trustees of the Trust have
executed this amendment, in one or more counterparts, all constituting a single
instrument, as an instrument under seal in The Commonwealth of Massachusetts, as
of this 29th day of December, 2000 and further certify, as provided by the
provisions of Section 9.3(d) of the Declaration, that this amendment was duly
adopted by the undersigned in accordance with the second sentence of Section
9.3(a) of the Declaration.
------------------------------- -------------------------------
Marshall N. Cohan Arnold D. Scott
2524 Bedford Mews Drive 20 Rowes Wharf
Wellington, FL 33414 Boston, MA 02110
------------------------------- -------------------------------
Lawrence H. Cohn Jeffrey L. Shames
45 Singletree Road 38 Lake Avenue
Chestnut Hill, MA 02167 Newton, MA 02459
------------------------------- -------------------------------
Sir J. David Gibbons J. Dale Sherratt
"Leeward" 86 Farm Road
5 Leeside Drive Sherborn, MA 01770
"Point Shares"
Pembroke, Bermuda HM 05
-------------------------------
Ward Smith
------------------------------- 36080 Shaker Blvd
Abby M. O'Neill Hunting Valley, OH 44022
200 Sunset Road
Oyster Bay, NY 11771
-------------------------------
Walter E. Robb, III
35 Farm Road
Sherborn, MA 01770
