The Missouri Department of Agriculture (MDA) requires upgrades, maintenance, and support to their current Research and Motor octane engines, which have been in operation since the 1980s, via the CFR® Fl/F2 Octane Rating System. MDA’s Fuel Quality Laboratory purchased and operate two octane engines, Research and Motor, to analyze gasoline products. The gasoline products are analyzed in accordance with the procedures outlined in the American Society for Testing and Materials, ASTM D2699, the standard test method for researching the octane number of spark-ignition engine fuels and ASTM D2700, the Standard Test Method for determining the motor octane number of spark-ignition engine fuel. These tests ensure compliance with the State of Missouri's Fuel Quality Law. To ensure MDA’s Fuel Quality Laboratory can continue to utilize the functionality, accurately operate, and improve the current processing of test results within the new Laboratory Information Management System (LIMS), such octane engine upgrades are necessary. The upgrades will include a mechanism to adjust the synchronous motor, a new automated octane analysis system, and a rebuild of the engine crankcases. Parts are no longer available for the current octane analyzers, and without such upgrades, MDA’s Research and Motor octane engines will not operate accurately or connect to MDA’s LIMS. CFR Engines, Inc. is the sole manufacturer of the CFR® Fl/F2 Octane Rating System and therefore is the sole source for upgrades, maintenance, and support. As a result, this represents a proprietary requirement that meets the criteria as a single feasible source under RSMo 34.044 and the State is pursuing this acquisition as a Single Feasible Source.