The law was intended to create absolute segregation between the No-Maj and wizarding communities. It banned witches and wizards from marrying or befriending No-Majs, allowing only interactions "necessary to perform daily activities," and meted out "harsh" penalties for fraternisation with No-Majs. To ensure complete conformity with the Law, only upon reaching the age of majority (seventeen) would a witch or wizard be legally allowed to carry a wand outside school: wands were first issed when students first arrived at Ilvermorny School of Witchcraft and Wizardry and had to be left at school during vacations.
Rappaport's Law had the long-term consequence of driving the American wizarding community even deeper underground and widening the cultural divide between the wizarding communities of the United States and Europe. In Europe, wizarding governments clandestinely cooperated and communicated with their Muggle counterparts, and witches and wizards were free to marry and befriend Muggles. However, in the United States, the Magical Congress of the United States of America exercised complete independence from the No-Maj government, and wizards and witches increasingly came to view the country's No-Maj population with hostility.
- Pottermore (Mentioned only)