SECTION 1. Section 2 of chapter 70 of the General Law, as appearing in the 2010 Official Edition, is hereby amended by striking out the definitions of “assumed tuitioned-out special education enrollment” and “assumed in-school special education enrollment” and inserting in place thereof the following definitions:-

"Assumed tuitioned-out special education enrollment”, the statewide average percentage of students included in foundation enrollments who participate in an Individual Education Plan and attend an out-of-district placement. The percentage shall be based on the statewide average tuitioned-out special education enrollment for the preceding academic year, or the statewide average tuitioned-out special education enrollment for the preceding fiscal year, whichever is lower.

"Assumed in-school special education enrollment", the statewide average percentage of students included in foundation enrollments who participate in an Individual Education Plan and attend an in-district placement. The percentage shall be based on the statewide average in-school special education enrollment for the preceding academic year, or the statewide average in-school special education enrollment for the preceding fiscal year, whichever is lower.

SECTION 2. Section 5A (a) of chapter 71B, as so appearing, is hereby amended by striking out the fourth sentence.

SECTION 3. Section 5A (b) of chapter 71B, as so appearing, is hereby amended by striking out the words “transportation costs” from the third sentence.

SECTION 4. Section 5A (c) of chapter 71B, as so appearing, is hereby amended by striking out the last sentence of the first paragraph and inserting in place thereof the following sentence:-

The costs of programs shall be reimbursed according to the following formula: In fiscal year 2018 school districts will receive eighty percent of approved costs, including transportation costs, if the city, town, or district utilizes a regional transportation network to reduce transportation costs or other collaborative and demonstrated efforts to reduce such costs, above 3.75 times the per pupil foundation budget; eighty percent of all such costs above 3.5 times the per pupil foundation budget for fiscal year 2019; eighty percent of all such costs above 3.25 per pupil foundation budget for fiscal year 2020 and eighty percent of all such costs above 3.0 times the per pupil foundation budget for fiscal year 2021 and hereafter. In fiscal year 2018, each school district shall be reimbursed at no less than the same amount of approved costs in the preceding fiscal year.