Hazardous materials are not allowed. The attached link to the USPS shipping instructions includes what can and cannot be shipped and packaging requirements.
http://pe.usps.com/text/qsg300/Q601.htm
Yes, it is a federal offense to mail illegal items through the United States Postal Service (USPS). Mailing illegal items can constitute various crimes such as drug trafficking, illegal weapon shipments, or sending prohibited materials. Violators can face serious legal consequences under federal law.
Yes. They are not regulated the way firearms are. However, if you're using the postal service, you should check the items you're mailing against their list of prohibited items. If it comes up as a prohibited item, you'll need to use a private third party carrier, such as UPS, FedEx, or DHL.
Most things, but not anything. There's a comprehensive list of prohibited items.
Aramex Couriers is a big company that delivers packages and items across the world. Some of the items one might try to send are prohibited like drugs or weapons.
No, the Patriots do not accept items thru the mail.
what behavior is prohibited. Include specific direction related to appropriate e-mail and Internet use. Inform all employees that all messages sent, received, or stored in the e-mail system are business property.
yes you can they mail a lot of stuff
GCA 68
Check on the TSA web site.
Yes, but the transit documents are the responsibility of the sender. Upon arrival in New Zealand, Customs may hold the items for assessment and for duty to be paid. They will notify you if this is the case. There are certain items that you would not be allowed to import, or possibly a prohibited export from the US. Customs will advise on these.
Because there are restrictions for certain items called dangerous goods like flammable gases, you will not be able to board with these prohibited items.. An item like camping gas is dangerous because it can ignite or explode easily. Some other items that are prohibited are fireworks and corrosive substances.
Airmail is the system of conveying mail using aircraft, or the items of mail so carried.