CFR > Title 18 - Conservation of Power and Water Resources > CHAPTER I—FEDERAL ENERGY REGULATORY COMMISSION, DEPARTMENT OF ENERGY > SUBCHAPTER X—PROCEDURAL RULES (parts 385 to 391) > PART 385—RULES OF PRACTICE AND PROCEDURE > SUBPART A—Applicability and Definitions (§385.101 to §385.104) > 385.104—Rule of construction (Rule 104).