What is us postal service first class mail

First-Class Mail is a type of mail service offered by the United States Postal Service (USPS) that provides fast and reliable delivery of letters, cards, and lightweight packages. Here are some key features and benefits of First-Class Mail:

Eligibility: First-Class Mail is suitable for sending letters, postcards, greeting cards, and lightweight packages weighing up to 13 ounces (369 grams).

Delivery Time: First-Class Mail is typically delivered within 1-3 business days within the contiguous United States, and 3-5 business days to Alaska and Hawaii.

Rates: The cost of First-Class Mail varies depending on the weight and size of the item, as well as the destination. As of 2022, the rates for First-Class Mail are:

• Letters (1 oz): $0.55
• Large Envelopes (1 oz): $0.92
• Cards (1 oz): $0.55
• Flats (1 oz): $1.20
• Packages (up to 13 oz): $3.50

Services: First-Class Mail offers several services, including:

• Tracking: You can track your mail online or through the USPS mobile app.
• Insurance: You can purchase insurance to protect against loss or damage.
• Signature Confirmation: Requires the recipient to sign for the package.
• Delivery Confirmation: Provides proof of delivery.

Restrictions: First-Class Mail has some restrictions, including:

• Maximum weight: 13 ounces (369 grams)
• Maximum size: 11.5 inches (29.2 cm) long, 6.125 inches (15.6 cm) wide, and 0.25 inches (0.64 cm) thick
• Prohibited items: Certain items, such as hazardous materials, are not allowed in First-Class Mail.

Overall, First-Class Mail is a reliable and affordable way to send mail and packages within the United States.