“Hidden” may be a bit strong. At the very least, it’s not uncommon in US legislation: Rider (legislation) https://en.m.wikipedia.org/wiki/Rider_(legislation)

“Hidden” may be a bit strong. At the very least, it’s not uncommon in US legislation: Rider (legislation) https://en.m.wikipedia.org/wiki/Rider_(legislation) https://en.m.wikipedia.org/wiki/Rider_(legislation)