Amazon's shipping rules are as follows:

1. On-time delivery: Sellers need to ship within 24 hours after the order is confirmed. If the seller cannot ship on time, the order can be cancelled through the "Order Management" function of Amazon Seller Center.

2. Packaging: Sellers need to use appropriate packaging materials to ensure that the goods are not damaged during transportation. At the same time, the order number and recipient information need to be marked on the packaging.

3. Logistics: Sellers need to choose the right logistics service to ensure that the goods can be delivered to the recipient quickly and accurately. Amazon provides FBA (Fulfillment by Amazon) service, sellers can send goods to Amazon's warehouse, and Amazon will complete the packaging and delivery.

4. Tracking: Sellers need to provide order tracking information to facilitate buyers to understand the status of the order.

5. Returns and Exchanges: Sellers need to handle buyers' return and exchange requests in accordance with Amazon's return and exchange policy.

6. Special requirements: If the buyer has special requirements, the seller needs to meet them as much as possible to improve the buyer's shopping experience.

In short, sellers need to comply with Amazon's shipping rules and return and exchange policies to ensure that the goods can be delivered to the buyer on time and safely.