16 CFR 1507.8 - Wheel devices.
Drivers in fireworks devices commonly known as “wheels” shall be securely attached to the device so that they will not come loose in transportation, handling, and normal operation. Wheel devices intended to operate in a fixed location shall be designed in such a manner that the axle remains attached to the device during normal operation.
Title 16 published on 2013-01-01
no entries appear in the Federal Register after this date.