; or (B) within a 100-mile radius of an interchange between the Class I rail carrier and another carrier at which rail cars are regularly switched. . 4. Improving reasonable rate standards (a) Benchmark-Based rate reasonableness standard Section 10701(d) of title 49, United States Code, is amended by adding at the end the following: (4) (A) Not later than 90 days after the date of the enactment of this paragraph, the Board shall initiate a rulemaking proceeding to develop a methodology for determining the reasonableness of challenged rail rates based on competitive rate benchmarking that predicts a competitive rate level based upon econometric models. (B) Rather than utilizing its existing Three-Benchmark Methodology, the Board shall develop a methodology that considers competitive markets or a proxy of such markets. (C) In determining the reasonableness of a challenged rate under the new benchmarking methodology developed under this paragraph, the Board shall presume that a rate above the benchmark rate level is unreasonable unless the rail carrier proves that the margin above the competitive rate benchmark is necessary to allow the rail carrier to earn adequate revenues. (D) Relief under the new benchmarking method shall have no monetary limit, but any rate prescription set by the Board shall remain in effect not less than 5 years. (E) The Board’s rulemaking under this paragraph shall set a standard procedural schedule for such cases, subject to necessary adjustments in particular adjudications, which may not exceed 365 days. . (b) Stand-Alone cost cases Section 10702 of such title is amended— (1) by inserting (a) before A rail carrier