The United States Flag Code
Flag Code & Etiquette
The United States Flag Code establishes advisory rules for display and care for the flag of the United States. It is Chapter 1 of Title 4 of the United States Code. This is a U.S. federal law, but there is no penalty for failure to comply with it and it is not widely enforced indeed, the U.S. Supreme Court has ruled that punitive enforcement would conflict with the First Amendment right to freedom of speech.
This etiquette is as applied within U.S. jurisdiction. In other countries and places, local etiquette applies.
The Pledge of Allegiance
by Red Skelton