U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
In addition to turquoise, the use of other local stone is permitted. Turquoise, if used, must be genuine stone, uncolored by any artificial means.
Regulations most recently checked for updates: Aug 27, 2025
In addition to turquoise, the use of other local stone is permitted. Turquoise, if used, must be genuine stone, uncolored by any artificial means.