[Code of Federal Regulations] [Title 13, Volume 1] [Revised as of January 1, 2001] From the U.S. Government Printing Office via GPO Access [CITE: 13CFR115.64] [Page 147] TITLE 13--BUSINESS CREDIT AND ASSISTANCE CHAPTER I--SMALL BUSINESS ADMINISTRATION PART 115--SURETY BOND GUARANTEE--Table of Contents Subpart C--Preferred Surety Bond (PSB) Guarantees Sec. 115.64 Timeliness requirement. There must be no Execution or approval of a bond by a PSB Surety after commencement of work under a Contract unless the Surety obtains written approval from the AA/SG. To apply for such approval, the Surety must submit a completed ``Surety Bond Guarantee Agreement Addendum'' (SBA Form 991), together with the evidence and certifications described in Sec. 115.19(f)(1)(ii).