11 GCA § 3427
Container: Refill Prohibit
View official PDF ↗A licensee shall not refill any distilled spirits containers with distilled spirits nor keep, offer for sale or sell distilled spirits from a container that has been refilled. Immediately upon emptying a container, a licensee shall destroy it.
Reconstructed from the Guam Code Annotated. For the authoritative version, see the official PDF.