It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.
18 CFR - Title 18—Conservation of Power and Water Resources 18 CFR 1 - RULES OF GENERAL APPLICABILITY
18 CFR Part 1b - RULES RELATING TO INVESTIGATIONS
18 CFR Part 1c - PROHIBITION OF ENERGY MARKET MANIPULATION
18 CFR 2 - GENERAL POLICY AND INTERPRETATIONS
18 CFR 4 - LICENSES, PERMITS, EXEMPTIONS, AND DETERMINATION OF PROJECT COSTS
18 CFR 5 - INTEGRATED LICENSE APPLICATION PROCESS
18 CFR 6 - SURRENDER OR TERMINATION OF LICENSE
18 CFR 8 - RECREATIONAL OPPORTUNITIES AND DEVELOPMENT AT LICENSED PROJECTS
18 CFR Part 11 - ANNUAL CHARGES UNDER PART I OF THE FEDERAL POWER ACT
18 CFR Part 12 - SAFETY OF WATER POWER PROJECTS AND PROJECT WORKS
18 CFR Part 16 - PROCEDURES RELATING TO TAKEOVER AND RELICENSING OF LICENSED PROJECTS
18 CFR Part 24 - DECLARATION OF INTENTION
18 CFR Part 32 - INTERCONNECTION OF FACILITIES
18 CFR Part 33 - APPLICATIONS UNDER FEDERAL POWER ACT SECTION 203
18 CFR Part 34 - APPLICATION FOR AUTHORIZATION OF THE ISSUANCE OF SECURITIES OR THE ASSUMPTION OF LIABILITIES
18 CFR Part 35 - FILING OF RATE SCHEDULES AND TARIFFS
18 CFR Part 37 - OPEN ACCESS SAME-TIME INFORMATION SYSTEMS
18 CFR Part 38 - BUSINESS PRACTICE STANDARDS AND COMMUNICATION PROTOCOLS FOR PUBLIC UTILITIES
18 CFR Part 41 - ACCOUNTS, RECORDS, MEMORANDA AND DISPOSITION OF CONTESTED AUDIT FINDINGS AND PROPOSED REMEDIES
18 CFR Part 45 - APPLICATION FOR AUTHORITY TO HOLD INTERLOCKING POSITIONS
18 CFR Part 46 - PUBLIC UTILITY FILING REQUIREMENTS AND FILING REQUIREMENTS FOR PERSONS HOLDING INTERLOCKING POSITIONS
18 CFR Part 101 - UNIFORM SYSTEM OF ACCOUNTS PRESCRIBED FOR PUBLIC UTILITIES AND LICENSEES SUBJECT TO THE PROVISIONS OF THE FEDERAL POWER ACT
18 CFR 116
18 CFR Part 131 - FORMS
18 CFR Part 141 - STATEMENTS AND REPORTS (SCHEDULES)
18 CFR Part 152 - APPLICATION FOR EXEMPTION FROM THE PROVISIONS OF THE NATURAL GAS ACT PURSUANT TO SECTION 1(C) THEREOF AND ISSUANCE OF BLANKET CERTIFICATES AUTHORIZING CERTAIN SALES FOR RESALE
18 CFR Part 154 - RATE SCHEDULES AND TARIFFS
18 CFR 161
18 CFR Part 201 - UNIFORM SYSTEM OF ACCOUNTS PRESCRIBED FOR NATURAL GAS COMPANIES SUBJECT TO THE PROVISIONS OF THE NATURAL GAS ACT
18 CFR Part 225 - PRESERVATION OF RECORDS OF NATURAL GAS COMPANIES
18 CFR Part 250 - FORMS
18 CFR Part 260 - STATEMENTS AND REPORTS (SCHEDULES)
18 CFR 271
18 CFR 275
18 CFR Part 281 - NATURAL GAS CURTAILMENT UNDER THE NATURAL GAS POLICY ACT OF 1978
18 CFR Part 284 - CERTAIN SALES AND TRANSPORTATION OF NATURAL GAS UNDER THE NATURAL GAS POLICY ACT OF 1978 AND RELATED AUTHORITIES
18 CFR Part 290 - COLLECTION OF COST OF SERVICE INFORMATION UNDER SECTION 133 OF THE PUBLIC UTILITY REGULATORY POLICIES ACT OF 1978
18 CFR Part 292 - REGULATIONS UNDER SECTIONS 201 AND 210 OF THE PUBLIC UTILITY REGULATORY POLICIES ACT OF 1978 WITH REGARD TO SMALL POWER PRODUCTION AND COGENERATION
18 CFR Part 300 - CONFIRMATION AND APPROVAL OF THE RATES OF FEDERAL POWER MARKETING ADMINISTRATIONS
18 CFR Part 340 - RATE SCHEDULES AND TARIFFS
18 CFR Part 341 - OIL PIPELINE TARIFFS: OIL PIPELINE COMPANIES SUBJECT TO SECTION 6 OF THE INTERSTATE COMMERCE ACT
18 CFR Part 343 - PROCEDURAL RULES APPLICABLE TO OIL PIPELINE PROCEEDINGS
18 CFR Part 344 - FILING QUOTATIONS FOR U.S. GOVERNMENT SHIPMENTS AT REDUCED RATES
18 CFR Part 346 - OIL PIPELINE COST-OF-SERVICE FILING REQUIREMENTS
18 CFR Part 347 - OIL PIPELINE DEPRECIATION STUDIES
18 CFR Part 348 - OIL PIPELINE APPLICATIONS FOR MARKET POWER DETERMINATIONS
18 CFR Part 349 - DISPOSITION OF CONTESTED AUDIT FINDINGS AND PROPOSED REMEDIES
18 CFR Part 356 - PRESERVATION OF RECORDS FOR OIL PIPELINE COMPANIES
18 CFR Part 357 - ANNUAL SPECIAL OR PERIODIC REPORTS: CARRIERS SUBJECT TO PART I OF THE INTERSTATE COMMERCE ACT
18 CFR Part 358 - STANDARDS OF CONDUCT
18 CFR Part 375 - THE COMMISSION
18 CFR Part 376 - ORGANIZATION, MISSION, AND FUNCTIONS; OPERATIONS DURING EMERGENCY CONDITIONS
18 CFR Part 380 - REGULATIONS IMPLEMENTING THE NATIONAL ENVIRONMENTAL POLICY ACT
18 CFR Part 381 - FEES
18 CFR Part 382 - ANNUAL CHARGES
18 CFR Part 385 - RULES OF PRACTICE AND PROCEDURE
18 CFR Part 388 - INFORMATION AND REQUESTS
18 CFR Part 390 - ELECTRONIC REGISTRATION
18 CFR 821