A Process Capability Study was designed and conducted to quantify the variability of the High Volume Instrument (HVI) measurements of micronaire, length, strength and uniformity under the current Cotton Division classification process. It can then be determined if the current process operates at an acceptable level and meets Division accuracy specifications. Study results showed that these HVI measurements are not normally distributed and are highly variable. Further study is necessary to normalize the measurements and to partition and quantify sources of variability.