Mail is delivered through the United States Postal Service on Good Friday. This is because Good Friday is not considered a federal or national holiday. Since Good Friday is not considered a federal or national holiday, any state or federal government office will be open that day.
In addition to mail delivery, many businesses operate as usual on Good Friday. Packages are typically delivered via UPS, FedEx and other carriers. Schools are often closed, and some businesses may choose to take the day off, but it is not a requirement. Banks are often open, although this can vary by location.