Be it enacted by the Senate and House of Representatives in General Court assembled, and by the authority of the same, as follows:

Section 3 of chapter 133 of the acts of 1989 is hereby amended by striking out the last sentence, as amended by section 1 of chapter 6 of the acts of 1997, and inserting in place thereof the following sentence:- The term of any such agreement shall not exceed 20 years.