This section requires all members of the Parliament to take the oath of allegiance provided by the Promissory Oaths Act 1868 or to make the corresponding affirmation. If they do not do so within 2 months of the day they are returned, or such longer period as the Parliament may allow, then they shall cease to be a member and their seat will become vacant. It also requires the members of the Scottish Executive to take the official oath under the 1868 Act and to take the oath of allegiance, unless they have already taken it as a member of the Parliament.
Commentary Part V: Miscellaneous and General Purpose and Effect