On the national level the Federal Flag Code provides uniform guidelines for the display of and respect shown to the flag. In the 105 th Congress, the Flag Code was removed from title 36 of the United States Code and re-codified as part of title 4. Display and Use of Flag by Civilians; Codification of Rules and Customs; Definition

The following codification of existing rules and customs pertaining to the display and use of the flag of the United States of America is established for the use of such civilians or civilian groups or organizations as may not be required to conform with regulations promulgated by one or more executive departments of the Government of the United States. National Anthem

(a) Designation.—The composition consisting of the words and music known as the Star-Spangled Banner is the national anthem. Frequently Asked Questions on Flag Display, Use, and Associated Matters

		Pledge of Allegiance

The Pledge of Allegiance is set forth in 4 U.S.C. Flying the Flag at Half-Staff

The Flag Code sets out detailed instructions on flying the flag at half-staff on Memorial Day and as a mark of respect to the memory of certain recently deceased public officials. Display of United States Flag with Flags of Other Nations or of States

The Flag Code sets out rules for position and manner of display of the flag in 4 U.S.C. Restrictions on Size and Proportions of the Flag

Questions on size and dimensions usually arise in the context of the display of huge flags.
This report presents, verbatim, the United States "Flag Code" as found in Title 4 of the United States Code and the section of Title 36 which designates the Star-Spangled Banner as the national anthem and provides instructions on how to display the flag during its rendition. The "Flag Code" includes instruction and rules on such topics as the pledge of allegiance, display and use of the flag by civilians, time and occasions for display, position and manner of display, and how to show respect for the flag. The "Code" also grants to the President the authority to modify the rules governing the flag.
The report also addresses several of the frequently asked questions concerning the flag. The subject matter of these questions includes the pledge of allegiance and the court decisions concerning it, the nature of the codifications of customs concerning the flag in the "Flag Code," display of the flag 24 hours a day, flying the flag in bad weather, flying the flag at half-staff, ornaments on the flag, destruction of worn flags, display of the U.S. flag with flags of other nations or of states, commercial use of the flag, size and proportion of the flag, restrictions upon display of the flag by real estate associations, and the country of origin of flags used on the caskets of veterans.