Technical Abstract: The U.S. cotton crop is produced by a highly mechanized production system that seeks to minimize manual labor while maximizing fiber quality. It is estimated that a bale of U.S. cotton is produced using approximately three man hours of labor while foreign producers may utilize several hundred man hours per bale. U.S. mechanization has resulted in an increase in some ginned fiber quality problems in comparison to foreign growths that utilize hand picking and significant manual labor for processing. The majority of U.S. cotton production is exported and must compete in fiber quality with hand-picked cottons for markets. U.S. cotton competes very well in low levels of bale contamination with foreign material, accurate and reliable fiber parameter classification, integrity of the individual cotton bale, and reliability of contract fulfillment. However, American cotton receives complaints from foreign customers of lower length uniformity, increased short fiber and increased neps in comparison to hand-picked cottons. These particular quality factors are affected by the level of mechanical processing that cotton fiber receives during the harvesting and ginning process. As a result, a significant proportion of current ginning research is aimed at improving the mechanical processing of cotton to decrease the impact on baled fiber quality and making U.S. cotton more competitive in all raw fiber quality areas. This paper looks at the impact that various current U.S. ginning practices have on the quality of U.S. cottons.