Federal child labor laws state that the minimum age to work is 14 (with some exceptions).
However, child labor laws in each state may also indicate the minimum age to work and which permits are needed. When there is a conflict between federal and state laws, the more restrictive law will apply.
Here is an overview of the requirements for children to work in each state. For specific laws and rules, visit the state labor website.
Child employment certificate needed to work: Not required.
Age certificate needed to work: Not required
State Labor Website: Arizona State Labor Website
Requirements for other states: Minimum age to work by state.