Proclamation 413—Standards of Conduct and Respect of Neutral Rights in the War with Spain
By the President of the United States of America
Whereas by an act of Congress approved April 25, 1898, it is declared that war exists and that war has existed since the 21st day of April, A.D. 1898, including said day, between the United States of America and the Kingdom of Spain; and
Whereas, it being desirable that such war should be conducted upon principles in harmony with the present views of nations and sanctioned by their recent practice, it has already been announced that the policy of this Government will be not to resort to privateering, but to adhere to the rules of the Declaration of Paris:
Now, therefore, I, William McKinley, President of the United States of America, by virtue of the power vested in me by the Constitution and the laws, do hereby declare and proclaim:
1. The neutral flag covers enemy's goods with the exception of contraband of war.
2. Neutral goods not contraband of war are not liable to confiscation under the enemy's flag.
3. Blockades in order to be binding must be effective.
4. Spanish merchant vessels in any ports or places within the United States shall be allowed till May 21, 1898, inclusive, for loading their cargoes and departing from such ports or places; and such Spanish merchant vessels, if met at sea by any United States ship, shall be permitted to continue their voyage if on examination of their papers it shall appear that their cargoes were taken on board before the expiration of the above term: Provided, That nothing herein contained shall apply to Spanish vessels having on board any officer in the military or naval service of the enemy, or any coal (except such as may be necessary for their voyage), or any other article prohibited or contraband of war, or any dispatch of or to the Spanish Government.
5. Any Spanish merchant vessel which prior to April 21, 1898, shall have sailed from any foreign port bound for any port or place in the United States shall be permitted to enter such port or place and to discharge her cargo, and afterwards forthwith to depart without molestation; and any such vessel, if met at sea by any United States ship, shall be permitted to continue her voyage to any port not blockaded.
6. The right of search is to be exercised with strict regard for the rights of neutrals, and the voyages of mail steamers are not to be interfered with except on the clearest grounds of suspicion of a violation of law in respect of contraband or blockade.
In witness whereof I have hereunto set my hand and caused the seal of the United States to be affixed.
Done at the city of Washington on the 26th day of April, A.D. 1898, and of the Independence of the United States the one hundred and twenty-second.
By the President:
ALVEY A. ADEE,
Acting Secretary of State.
William McKinley, Proclamation 413—Standards of Conduct and Respect of Neutral Rights in the War with Spain Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/205623