1. Loyalty Oath: States had to take an oath of allegiance to the U.S. Constitution.
2. Secession Nullification: States had to ratify the Thirteenth Amendment, which abolished slavery.
3. New State Constitution: States had to create a new state constitution without provisions for slavery or allowing former Confederate leaders to hold office.
4. Repudiation of Confederate Debts: States had to repudiate (reject) debts incurred by the Confederate government during the Civil War.