- Title 1 - General Provisions
- Title 2 - Grants and Agreements
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- Title 4 - Accounts
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- Title 18 - Conservation of Power and Water Resources
- Title 19 - Customs Duties
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- Title 47 - Telecommunication
- Title 48 - Federal Acquisition Regulations System
- Title 49 - Transportation
- Title 50 - Wildlife and Fisheries
CFR > Title 18 - Conservation of Power and Water Resources > CHAPTER I—FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY > SUBCHAPTER A—GENERAL RULES (parts 1 to 3c) > PART 1b—RULES RELATING TO INVESTIGATIONS > 1b.4—Types of investigations.
1b.4—Types of investigations.
Investigations may be formal or preliminary, and public or private.