[Code of Federal Regulations] [Title 7, Volume 6] [Revised as of January 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 7CFR610.11] [Page 406] TITLE 7--AGRICULTURE CHAPTER VI--NATURAL RESOURCES CONSERVATION SERVICE, DEPARTMENT OF AGRICULTURE PART 610_TECHNICAL ASSISTANCE--Table of Contents Subpart B_Soil Erosion Prediction Equations Sec. 610.11 Purpose and scope. Source: 61 FR 27999, June 4, 1996, unless otherwise noted. This subpart sets forth the equations and rules for utilizing the equations that are used by the Natural Resources Conservation Service (NRCS) to predict soil erosion due to water and wind. Section 301 of the Federal Agriculture Improvement and Reform Act of 1996 (FAIRA) and the Food Security Act, as amended, 16 U.S.C. 3801-3813 specified that the Secretary would publish the universal soil loss equation (USLE) and wind erosion equation (WEQ) used by the Department within 60 days of the enactment of FAIRA. This subpart sets forth the equations, definition of factors, and provides the rules under which NRCS will utilize the USLE, the revised universal soil loss equation (RUSLE), and the WEQ.