Exchequer and Audit Departments Act, 1866

Royal orders for issue of sums granted by resolution or Act of Parliament for expenses of specified public services.

14. When any sum or sums of money shall have been granted to Her Majesty by a resolution of the House of Commons, or by an Act of Parliament, to defray expenses for any specified public services, it shall be lawful for Her Majesty from time to time, by her royal order under the Royal Sign Manual, countersigned by the Treasury, to authorize and require the Treasury to issue, out of the credits to be granted to them on the Exchequer accounts as herein-after provided, the sums which may be required from time to time to defray such expenses, not exceeding the amount of the sums so voted or granted.