That boxy little mail truck in your neighborhood actually has a name. It’s called the LLV, which stands for “Long Life Vehicle” and it, along with 142,000 other LLVs, are responsible for moving most of the 523 million pieces of mail every day. But their long life is coming to an end as the USPS is going deeper into debt. With over $40 billion dollars in unsecured liabilities, the USPS is struggling to prioritize the replacement of its aging fleet. We unpacked everything you need to know about the LLV and its potential replacement.