Do you need an EIN on the package label? https://help.cbp.gov/s/article/Article-1145?language=en_US https://help.cbp.gov/s/article/Article-1145?language=en_US

Do you need an EIN on the package label? https://help.cbp.gov/s/article/Article-1145?language=en_US https://help.cbp.gov/s/article/Article-1145?language=en_US Interestingly it seems to be the fault of the Census Bureau wanting to provide aggregate economic activity reports rather than border patrol themselves. Nothing more fun than watching two departments try to "cooperate" which is why you're probably not getting much help from Customs.