- Title 1 - General Provisions
- Title 2 - Grants and Agreements
- Title 3 - The President
- Title 4 - Accounts
- Title 5 - Administrative Personnel
- Title 6 - Domestic Security
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- Title 9 - Animals and Animal Products
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- Title 14 - Aeronautics and Space
- Title 15 - Commerce and Foreign Trade
- Title 16 - Commercial Practices
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- Title 18 - Conservation of Power and Water Resources
- Title 19 - Customs Duties
- Title 20 - Employees' Benefits
- Title 21 - Food and Drugs
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- Title 27 - Alcohol, Tobacco Products and Firearms
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- Title 38 - Pensions, Bonuses, and Veterans' Relief
- Title 39 - Postal Service
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- Title 44 - Emergency Management and Assistance
- Title 45 - Public Welfare
- Title 46 - Shipping
- Title 47 - Telecommunication
- Title 48 - Federal Acquisition Regulations System
- Title 49 - Transportation
- Title 50 - Wildlife and Fisheries
CFR > Title 39 - Postal Service > CHAPTER I—UNITED STATES POSTAL SERVICE > SUBCHAPTER F—PERSONNEL (parts 447 to 491) > PART 447—RULES OF CONDUCT FOR POSTAL EMPLOYEES > SUBPART B—Employee Conduct (§447.21 to §447.21)