25 CFR §141.13

1. (a)No person may operate a portable dance pavilion, mechanical amusement device such as a ferris wheel or carousel, or commercial games of skill within the exterior boundaries of the Navajo, Hopi, or Zuni Reservations without a license from the Commissioner.
2. (b)The licensee shall pay such fee as the Commissioner requires. The fee shall be not less than five dollars ($5) nor more than twenty-five dollars ($25) per unit.
3. (c)The licensee shall post a surety bond on a form provided by the Commissioner in an amount not exceeding ten thousand dollars ($10,000) and a personal injury and property damage liability bond of not less than five thousand dollars ($5,000) nor more than fifty thousand dollars ($50,000) as may be required by the Commissioner.
4. (d)The provisions of this section do not apply to amusement companies where the contract between the tribe and the amusement company provides for the payment of a fee to the tribe and for the protection of the public against personal injury and property damage by bond in the amounts specified in paragraph (c) of this section.
5. (e)Any surety on a bond under this section may be relieved of liability by complying with the provisions of § 141.57.