: This guidance document explains how the new official languages requirements for supervisory positions must be applied in the context of selection of employees for retention or lay-off (SERLO), and alternation processes. <i>Published March 2026.</i> | : This guidance document explains how the new official languages requirements for supervisory positions must be applied in the context of selection of employees for retention or lay-off (SERLO), and alternation processes. <i>Published March 2026.</i> |