Section 2901.101 - Purpose(a) This chapter contains the DOLAR. The DOLAR is established within the FAR System, at title 48 of the Code of Federal Regulations (CFR).(b) The purpose of the DOLAR is to implement and supplement the FAR in accordance with FAR subpart 1.3 and authorities cited therein. The DOLAR is not by itself a complete document, as it must be used in conjunction with the FAR.