[Code of Federal Regulations] [Title 42, Volume 2] [Revised as of October 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 42CFR402.109] [Page 33-34] TITLE 42--PUBLIC HEALTH HUMAN SERVICES PART 402--CIVIL MONEY PENALTIES, ASSESSMENTS, AND EXCLUSIONS--Table of Contents Subpart B--Civil Money Penalties and Assessments Sec. 402.109 Statistical sampling. (a) Purpose. CMS or OIG may introduce the results of a statistical sampling study to show the number and amount of claims subject to sanction under this part that the respondent presented or caused to be presented. (b) Prima facie evidence. The results of the statistical sampling study, if based upon an appropriate sampling and computed by valid statistical methods, constitute prima facie evidence of the number and amount of claims or requests for payment subject to sanction under Sec. 402.1. (c) Burden of proof. Once CMS or OIG has made a prima facie case, the burden is on the respondent to produce evidence reasonably calculated to rebut the findings of the statistical [[Page 34]] sampling study. CMS or OIG then has the opportunity to rebut this evidence.