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.

Former President Jimmy Carter passed on Dec. 29. Flags were ordered to fly at half-staff for 30 days in federal observance of mourning. But Inauguration Day falls within that timeframe.

U.S. House Speaker Mike Johnson granted President-elect Trump's request to suspend a 30-day mourning period for former President Jimmy Carter in order to fly flags at full staff during the inauguration.