Constitution Center.org: article 2
Constitution USA.com: article 2 section 3: he shall take care that the laws be faithfully executed
Constitution Center.org: article 4
Constitution USA.com: article 4 section 4: shall protect each of them against invasion
(Yale law school) USA constitution article 4 section 4: "The United States shall guarantee to every state in this union a republican form of government, and shall protect each of them against invasion"
2016-07-11: Greg McLawsen: Sound Immigration: INA/IANA to 8 USC conversion table
DHS USCIS: table mapping Immigration & Nationality Act of 1952 (INA/IANA) sections with the USA Code sections
8 USC 1: general provisions: repealed or omitted
8 USC 31, 32: elective franchise; transferred
8 USC 41-53: civil rights; transferred or repealed
8 USC 71-83: alien ownership of USA land; transferred or omitted
8 USC 261-299: exclusion of Chinese; omitted or repealed
8 USC 331: the cooly/coolie trade; repealed
8 USC 351: miscellaneous provisions; repealed or transferred
8 USC 451: alien registration; repealed in 1952
8 USC 1101-1537: immigration and nationality
8 USC 1101: Definitions
8 USC 1101: Definitions
8 USC 1151-1161: Selection System
8 USC 1158: Asylum
8 USC 1158: Asylum
8 USC 1181-1189: admission qualifications for aliens; travel control of USA citizens and aliens
8 USC 1182: inadmisible aliens
8 USC 1182: inadmissible aliens
INA/IANA 212=8 USC 1182: inadmissible aliens
8 USC 1182d: denial of visas to confiscators of USA property
8 USC 1183: admission of aliens on giving bond or undertaking; return upon permanent departure
8 USC 1183a: requirements for sponsor's affidavit of support
8 USC 1184: admission of non-immigrants
8 USC 1184a: Philippine traders as non-immigrants
8 USC 1185: travel control of USA citizens and aliens
8 USC 1201-1205: issuance of entry documents
8 USC 1202: application for visas
8 USC 1204: immediate relative and "special" immigrant visas (see 8 USC ยง 1101(a)(27))
Cornell U Legal Information Institute: 8 USC 1221: lists of alien and USA citizen passengers arriving and departing
USCode: House.gov: 8 USC 1221
Cornell U Legal Information Institute: 8 USC 1222: detention of aliens for phsyical and mental examination
USCode: House.gov: 8 USC 1222
Cornell U Legal Information Institute: 8 USC 1223: entry through or from foreign territory and adjacent islands
USCode: House.gov: 8 USC 1223
Cornell U Legal Information Institute: 8 USC 1224: designation of ports of entry for aliens arriving by aircraft
USCode: House.gov: 8 USC 1224
Cornell U Legal Information Institute: 8 USC 1225 = INA/IANA 235: inspection by immigration officers; expedited removal of inadmissible arriving aliens ; referral for hearing
USCode: House.gov: 8 USC 1225
Cornell U Legal Information Institute: 8 USC 1225a: pre-inspection at foreign airports
Cornell U Legal Information Institute: 8 USC 1226 = INA/IANA 236: apprehension and detention of aliens
USCode: House.gov: 8 USC 1226 = INA/IANA 236
Cornell U Legal Information Institute: 8 USC 1227 = INA/IANA 237: deportable aliens
USCode: House.gov: 8 USC 1227 = INA/IANA 237
Cornell U Legal Information Institute: 8 USC 1227 = INA/IANA 237: deportable aliens
USCode: House.gov: 8 USC 1227 = INA/IANA 237
Cornell U Legal Information Institute: 8 USC 1228 = INA/IANA 238: expedited removal of aliens convicted of committing aggravated felonies
USCode: House.gov: 8 USC 1228 = INA/IANA 238
Cornell U Legal Information Institute: 8 USC 1229 = INA/IANA 239: initiation of removal proceedings
USCode: House.gov: 8 USC 1229 = INA/IANA 239 (certainly needs to be strengthened)
Cornell U Legal Information Institute: 8 USC 1229a: removal proceedings
Cornell U Legal Information Institute: 8 USC 1229b: cancellation of removal; adjustment of status
Cornell U Legal Information Institute: 8 USC 1229c: voluntary departure
Cornell U Legal Information Institute: 8 USC 1230 = INA/IANA 240C: records of admission
USCode: House.gov: 8 USC 1230 = INA/IANA 240C
Cornell U Legal Information Institute: 8 USC 1231 = INA/IANA 241: detention and removal of aliens ordered removed
USCode: House.gov: 8 USC 1231 = INA/IANA 241
Cornell U Legal Information Institute: 8 USC 1232: enhancing efforts to combat the traficking of children
USCode: House.gov: 8 USC 1232
Cornell U Legal Information Institute: 8 USC 1321: prevention of unauthorized landing of aliens
USCode: House.gov: 8 USC 1321
Cornell U Legal Information Institute: 8 USC 1322: bringing in aliens subject to denial of admission on a health-related ground; persons liable; clearance papers; exceptions; "persons" defined
USCode: House.gov: 8 USC 1322
Cornell U Legal Information Institute: 8 USC 1323: unlawful bringing of aliens into USA
USCode: House.gov: 8 USC 1323
Cornell U Legal Information Institute: 8 USC 1324: bringing in and harboring certain aliens
USCode: House.gov: 8 USC 1324
Cornell U Legal Information Institute: 8 USC 1324a: unlawful employment of aliens (this needs to be strengthened, making it more difficult for executives and managers to insincerely claim "I didn't know", though requiring E-Verify is not a 100% solution and will create other costs)
Cornell U Legal Information Institute: 8 USC 1324c: penalties for document fraud (still too much wiggle/ weasel room; feeble penalties)
Cornell U Legal Information Institute: 8 USC 1324d: civil penalties for failure to depart (still too much wiggle/ weasel room: remove them)
8 USC 1351-1382: miscellaneous
Cornell U Legal Information Institute: 8 USC 1357: powers of immigration officers and employees
Cornell U Legal Information Institute: 8 USC 1361: burden of proof upon alien
Cornell U Legal Information Institute: 8 USC 1362: right to counsel
8 USC 1551-1574: Immigration and Naturalization Service (INS)
8 USC 1551-1557: Immigration and Naturalization Service (INS): Organization
8 USC 1571-1574: INS immigration services and infrastructure improvements
8 USC 1601-1646: restricting socialist illfare payouts and public benefits for aliens
8 USC 1711-1778: enhanced border security and visa entry form