Since 1991 the HVC Color Vision Skill Test has been available worldwide. Initial technical information was published in1993. Further data allow additional conclusions with regard to sex and experience of observers. However, the conclusions reported in 1993 have been revalidated and remain unchanged. No essential difference in scores show up in the comparisons of male and female observers. Workplace experience comparisons for those who deal surface colors and those working with CRTs favor surface color in the limited data reported.