Yellow envelope mail

The yellow envelope!

In the United States, a yellow envelope is often associated with mail that requires special handling or attention. Here are some common types of mail that may be sent in a yellow envelope:

1. Priority Mail: The United States Postal Service (USPS) uses yellow envelopes for Priority Mail, which is a fast and trackable shipping service that guarantees delivery within 1-3 business days.
2. Express Mail: Yellow envelopes are also used for Express Mail, which is a faster and more secure shipping service that guarantees overnight delivery.
3. Certified Mail: Yellow envelopes are used for Certified Mail, which is a service that provides proof of mailing and delivery. This type of mail is often used for important documents, such as legal documents or financial transactions.
4. Return Receipt Requested: Yellow envelopes may also be used for mail that requires a return receipt, which is a signed confirmation that the mail was received by the addressee.
5. Special Handling: In some cases, yellow envelopes may be used for mail that requires special handling, such as hazardous materials or perishable items.

In general, a yellow envelope is a sign that the mail inside is important, urgent, or requires special attention.