249.This schedule is introduced by section 27. Paragraphs 1 and 2 comprise the main relief provisions. A transaction will be relieved when it is entered into with a public body in order to comply with a planning obligation or a modification of a planning obligation, subject to certain conditions being satisfied. Paragraphs 3 and 4 define “planning obligation” and “modification”. Paragraph 5 lists which bodies fall within the definition of “public bodies” and allows the Scottish Ministers to add bodies to the list by order. Such an order will be subject to the negative procedure (see section 67).