Though federal flag code dictates a 30-day mourning period after the death of a former president, not everyone is complying. Here's what we know.

With the death of President Jimmy Carter at age 100, President Joe Biden has ordered flags to fly at half-mast.

Flags throughout the U.S. are being flown at half-staff to honor former President Jimmy Carter, who died in December. They will be raised in a few days.