Businesses of all types and sizes across the US are familiar with First-Class Mail, after all it is the most economical way for companies to send postcards, letters, flat-enveloped communications, and light packages to customers and colleagues anywhere in the country.

But how well do you really know everything there is to know about First-Class Mail? Here’s your chance to find out. Take our First-Class Mail Quiz. See how many of these questions you get right.

  1. When did First-Class Mail begin?

First-class stamps were introduced by the United States Postal Service (USPS) in 1866. The cost for one stamp was 3 cents.

  1. What is First-Class Mail ideal for?

Some of the most common things businesses mail using First-Class Mail are welcome letters, flyers, promotional postcards, statements, invoices, and lightweight packages.

  1. What is the maximum weight a letter can be using First-Class Mail?

3.5 ounces.

  1. What is the maximum weight a parcel can be using First-Class Mail?

13 ounces.

  1. What is the estimated delivery time for First-Class Mail?

It usually takes 1 to 5 days from the postmarked date, for First-Class Mail to arrive at its destination. 1-3 days for small packages. These timelines are an estimate and are not guaranteed by USPS.

  1. Are First-Class Mail rates the same for all items?

No. It depends on what you are sending. For example, a postcard will cost less than a letter. A letter will cost less than a package.

  1. Do First-Class Mail rates vary based on the destination?

No. First-Class Mail rates are the same whether you’re mailing that postcard, letter, or lightweight package next door or to the other side of the country.

  1. Where is the best place to find the most current rates for First-Class Mail?

The USPS website.

  1. What is the most common piece of mail sent using First-Class Mail?

A standard 1-ounce letter.

  1. The USPS only offers First-Class Mail service within the US. True or False?

False. For sending mail overseas the USPS has their First-Class Mail International® service. Like its domestic counterpart, this service is the affordable way to send postcards, letters, and lightweight packages to destinations in over 190 countries.

  1. USPS has First-Class Mail stamps that you can buy that will never expire. True or False?

True. First-Class Mail Forever® stamps for postcards and letters have no face value, so you can purchase them at today’s current price and used anytime in the future, even if down the road the rate for First-Class Mail has gone up.

  1. You can send First-Class Mail without having to go to the Post Office. True or False?

True. Become a Switch customer. Switch is a web mailing service that allows you to purchase First-Class Mail postage, send, remotely print, and post your documents from your web browser to any US domestic address.