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

The board of selectmen and the school committee of the town of Swampscott with the approval of the town board of public works may place a portion of a portable school classroom on certain park land owned by the town and known as Jackson Park in an area not to exceed 2,500 square feet adjacent to the Machon Elementary School as shown on a plan titled "Machon Elementary School Trailer, Option A, dated June 14, 1999, Swampscott School Department" on file with the board of selectmen.