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 President
Note 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 of
Chapter 3: Seat of the Government
§ 71 — Permanent seat of Government
§ 72 — Public offices; at seat of Government
§ 73 — Same; removal from seat of Government
Chapter 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 inference
Chapter 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
