Title 4 of the United States Code outlines the role of flag of the United States, Great Seal of the United States, Washington, DC, and the states in the United States Code.
Chapter 1: The Flag
§ 1 — Flag; stripes and stars on§ 2 — Same; additional stars§ 3 — Use of flag for advertising purposes; mutilation of flag§ 4 — Pledge of allegiance to the flag; manner of delivery§ 5 — Display and use of flag by civilians; codification of rules and customs; definition§ 6 — Time and occasions for display§ 7 — Position and manner of display§ 8 — Respect for flag§ 9 — Conduct during hoisting, lowering or passing of flag§ 10 — Modification of rules and customs by PresidentNote that 36 U.S.C. § 110 is where Flag Day is codified.
Chapter 2: The Seal
§ 41 — Seal of the United States§ 42 — Same; custody and use ofChapter 3: Seat of the Government
§ 71 — Permanent seat of Government§ 72 — Public offices; at seat of Government§ 73 — Same; removal from seat of GovernmentChapter 4: The States
§ 101 — Oath by members of legislatures and officers§ 102 — Same; by whom administered§ 103 — Assent to purchase of lands for forts§ 104 — Tax on motor fuel sold on military or other reservation§ 105 — State, and so forth, taxation affecting Federal areas; sales or use tax§ 106 — Same; income tax§ 107 — Same; exception of United States, its instrumentalities, and authorized purchases§ 108 — Same; jurisdiction of United States over Federal areas unaffected§ 109 — Same; exception of Indians§ 110 — Same; definitions§ 111 — Same; taxation affecting Federal employees; income tax§ 112 — Compacts between States for cooperation in prevention of crime; consent of Congress§ 113 — Residence of Members of Congress for State income tax laws§ 114 — Limitation on State income taxation of certain pension income§ 115 — Limitation on State authority to tax compensation paid to individuals performing services at Fort Campbell, Kentucky§ 116 — Rules for determining State and local government treatment of charges related to mobile telecommunications services§ 117 — Sourcing rules§ 118 — Limitations§ 119 — Electronic databases for nationwide standard numeric jurisdictional codes§ 120 — Procedure if no electronic database provided§ 121 — Correction of erroneous data for place of primary use§ 122 — Determination of place of primary use§ 123 — Scope; special rules§ 124 — Definitions§ 125 — Nonseverability§ 126 — No inferenceChapter 5: Official Territorial Papers
§ 141 — Collection, preparation and publication§ 142 — Appointment of experts§ 143 — Employment and utilization of other personnel; cost of copy reading and indexing§ 144 — Cooperation of departments and agencies§ 145 — Printing and distribution§ 146 — Authorization of appropriations