: This is the authoritative "paper" for how to package hazardous, restricted, or perishable materials safely for mailing.
💡 : Check the source of your "Pack 1184.zip" file. If it came from a government portal, it is likely an application package ; if from a developer site, it is a code update . Pack 1184.zip
Where did you (e.g., a specific website or email)? : This is the authoritative "paper" for how