One such law is the Coogan Law. This law was put in place to protect child entertainers. Jackie Coogan was a child actor left penniless as an adult after his parents squandered the $4 million he amassed as a child actor in the 1930's. Under the Coogan Law it is mandated by federal law that 15% of a child's total income be set aside in a trust until their 18th birthday. This laws covers the earnings of child performers, musicians and sports figures. For more information check-out the link below.

Screen Actor's Guild's Coogan Law Press Release

Schooling - Minors must do a minimum of 3 hours a day of classroom study with each session lasting no less than 20 minutes. Minors must bring study material to the set. More information on these rules can be found in the "Young Performer's" HANDBOOK.

Screen Actor's Guild's Young Performers HANDBOOK