Promissory Oaths Act, 1868

No person to be required or authorized to take the oath of allegiance except the persons herein specified, or to take the oath of assurance in Scotland.

9. No person shall be required or authorized to take the oaths of allegiance, supremacy, and abjuration, or any of such oaths, or any oath substituted for such oaths, or any of them, or to make any declaration to the like effect of such oaths, or any of them, except the persons required to take the oath of allegiance by this Act and the Clerical Subscription Act, 1865, and the Parliamentary Oaths Act, 1866, or one of such Acts, any Act of Parliament, charter, or custom to the contrary notwithstanding; and no person shall be required or authorized to take the oath of assurance in Scotland.

Miscellaneous Provisions as to Oaths.