In addition to the traditional classification, two recent proposals are given, neither of which accepts traditional "Mon–Khmer" as a valid unit. However, little of the data used for competing classifications has ever been published, and therefore cannot be evaluated by peer review.
Besides the conventional categorization, two recent suggestions are presented, neither of which acknowledges traditional "Mon–Khmer" as a legitimate unit. Nevertheless, scant of the data utilized for rival classifications has ever been released, and thus cannot be assessed by peer review.