Now, therefore, I, ABRAHAM LINCOLN, President of the United States, by virtue of the power in me vested as commander-in-chief of the army and navy of the United States, in time of actual armed rebellion against the authority and government of the United States, and as a fit and necessary war measure for suppressing said rebellion, do . . . order and designate as the States and parts of the States wherein the people thereof, respectively, are this day in rebellion against the United States, the following, to wit: Arkansas, Texas, Louisiana (except the Parishes of St. Bernard, Plaquemines, Jefferson, St. John, St. Charles, St. James, Ascension, Assumption, Terre Bonne, Lafourche, St. Mary, St. Martin, and Orleans, including the City of New Orleans), Mississippi, Alabama, Florida, Georgia, South Carolina, North Carolina, and Virginia (except the forty-eight counties designated as West Virginia, and also the counties of Berkely, Accomae, Northamptom, Elizabeth City, York, Princess Ann, and Norfolk, including the cities of Norfolk and Portsmouth), and which excepted parts are for the present left precisely as if this proclamation were not issued.

–Emancipation Proclamation,

Abraham Lincoln

Why are several parishes in Louisiana exempt from the effects of the proclamation?

They did not join the Confederacy.
They did not sign a declaration of secession.
They are not now in rebellion against the US.
They are not slaveholding parishes.