[Code of Federal Regulations] [Title 13, Volume 1] [Revised as of January 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 13CFR121.505] [Page 341] TITLE 13--BUSINESS CREDIT AND ASSISTANCE CHAPTER I--SMALL BUSINESS ADMINISTRATION PART 121_SMALL BUSINESS SIZE REGULATIONS--Table of Contents Subpart A_Size Eligibility Provisions and Standards Sec. 121.505 What is the effect of a self-certification? (a) A contracting officer may accept a concern's self-certification as true for the particular sale or lease involved, in the absence of a written protest by other offerors or other credible information which would cause the contracting officer or SBA to question the size of the concern. (b) Procedures for protesting the self-certification of an offeror are set forth in Sec. Sec. 121.1001 through 121.1009.