On the prevailing view of ultimate attainment in second language acquisition, native competence cannot be achieved by postpubertal learners. The present study offers convergent experimental evidence which suggests there are exceptions to this generalization. At the same time, early arrival in the host country—even if past puberty—correlates with attainment of native norms on a variety of measures. Also investigated are the loci of competence differences in the syntax of the target language (French). Contrary to findings by Coppieters 1987, experimental performance is not predicted by the status of a given linguistic variable as within or outside the theoretical domain of Universal Grammar.