Section 8.403 - Applicability(a) Procedures in this subpart apply to- (1) Individual orders for supplies or services placed against Federal Supply Schedules contracts; and(2) BPAs established against Federal Supply Schedule contracts.(b) GSA may establish special ordering procedures for a particular schedule. In this case, that schedule will specify those special ordering procedures. Unless otherwise noted, special ordering procedures established for a Federal Supply Schedule take precedence over the procedures in 8.405.(c) In accordance with section 1427(b) of Public Law 108-136 , for requirements that substantially or to a dominant extent specify performance of architect-engineer services (as defined in 2.101), agencies-(1) Shall use the procedures at Subpart 36.6; and(2) Shall not place orders for such requirements under a Federal Supply Schedule.69 FR 34234, 6/18/2004, as amended at 70 FR 11738, 3/9/2005