The USDA, AMS, Cotton Division has offered module/trailer averaging to the cotton industry since 1991. The program initially averaged High Volume Instrument (HVI) measurements for strength only, but, following positive industry response, was expanded to include additional HVI measurements in the following years. Participation in the module/trailer averaging program increased from 99 gins in 1991 to 252 gins in 1995.

For each crop year, reproducibility data indicate that the laboratory-to-laboratory reproducibility of fiber property measurements is improved by assigning the module or trailer average fiber property measurement to each bale in the module or trailer.