Officers' Commissions Act 1862
The Officers' Commissions Act 1862 (25 & 26 Vict. c. 4) was an Act of Parliament of the Parliament of the United Kingdom. It provided that any officer's commission in the British Army could be issued without the royal sign-manual, provided that it was signed by a principal secretary of state and the commander in chief, or an appropriate officer depending on the specific branch of service. For the Royal Marines, a signature from the Admiralty was required. The Act, whilst amended to reflect changes in the military and political structure since 1862, is still in force. References

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United Kingdom Acts of Parliament 1862
1862 in military history
19th-century history of the British Army