Today my buddy, who was expecting a few boxes of fish, got a call from a California Fish & Game agent visiting the Fedex, UPS, etc distribution centers in his area. She said she had to open a box of his because it didn't have a description of contents on the outside. She went on to say that its California law that all boxes labelled "live tropical fish" must have an invoice/description of contents taped to the outside else they could get held up while they are inspected. Apparently they are looking for some invasive fresh water plant.
Has anybody heard of/experienced this? It's news to me. And was news to the vendors that my buddy called to request they tape a contents description on the outside of the box (a notable large online vendor said there was no way they could do this). I know its a requirement for live plant shipments but have never heard of this for live tropical fish.