A bill to amend title 49 of the United States Code to prevent predatory pricing by motor common carriers.

Amends Federal law regarding motor common carrier rates to provide that the Interstate Commerce Commission shall suspend as unreasonably low any rate which fails to meet or exceed 90 percent of the variable cost of providing the service for which the rate is charged, if any person submits such evidence to the Commission and requests such suspension. Sets forth rebuttable presumptions regarding the evidence submitted.