3. A public call for tenders must be made in accordance with the provisions of this Chapter.
If a public body makes a public call for tenders to award a contract involving an expenditure below the public tender threshold referred to in subparagraph 1 of the first paragraph of section 10 of the Act, the tender closing date set out in subparagraph 6 of the second paragraph of section 4, the requirement as to the place of the establishment set out in subparagraph 2 of the first paragraph of section 6, the time for sending an addendum set out in the second paragraph of section 9 and the composition of the selection committee provided for in the second paragraph of section 26 may differ.
In the case of a contract referred to in Chapter III, the public call for tenders must comply with the special provisions of that chapter.