Clause 7 Post Offices

Primary source

Commentary below is sourced from the Cornell Legal Information Institute (LII) mirror of the U.S. Constitution Annotated, used per LII's robots.txt with 10-second crawl-delay compliance.

Commentary

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Clause 7 Post Offices

To establish Post Offices and post Roads;

Historical Background on Postal Power
Power to Protect the Mails
Power to Prevent Harmful Use of Postal Facilities
Exclusive Power Over Post Offices as an Adjunct to Other Powers
Restrictions on State Power Over Post Offices

Read the full annotation on Cornell LII

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.