What is the legal working age in the state of Colorado?

COLORADO YOUTH EMPLOYMENT OPPORTUNITY ACT

TITLE 8, ARTICLE 12, CRS

No minor under the age of fourteen shall be permitted employment in this state except as authorized by sections 8-12-104, 8-12-106, and 8-12-107.

There are exemptions and restrictions.

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Depending on the particular occupation, the legal working age in Colorado can be as young as 9 years old. There are revisions for ages 9, 12, 14, 15, and 16.