Is there mail delivery in the US on Good Friday?

According to the USPS website the following days are observed as no mail delivery: Monday, January 2- New Year's Day (observed)• Monday, January 16- Martin Luther King, Jr. birthday (observed)• Monday, February 20- Washington's birthday (President's Day)• Monday, May 28- Memorial Day• Wednesday, July 4- Independence Day• Monday, September 3- Labor Day• Monday, October 8- Columbus Day• Monday, November 12- Veterans' Day (observed)• Thursday, November 22- Thanksgiving Day• Tuesday, December 25- Christmas Day

So yes, there is mail delivery on Good Friday!