SUBCHAP[X]
1 = SUBCHAPTER A—DEFINITIONS AND GENERAL REQUIREMENTS
--- PART[X]
--- 1 = PART 1—DEFINITIONS AND ABBREVIATIONS
--- 2 = PART 3—GENERAL REQUIREMENTS
--- 3 = PART 5—SAFETY MANAGEMENT SYSTEMS"
2 = SUBCHAPTER B—PROCEDURAL RULES
--- PART[X]
--- 1 = PART 11—GENERAL RULEMAKING PROCEDURES
--- 2 = PART 13—INVESTIGATIVE AND ENFORCEMENT PROCEDURES
--- 3 = PART 14—RULES IMPLEMENTING THE EQUAL ACCESS TO JUSTICE ACT OF 1980
--- 4 = PART 15—ADMINISTRATIVE CLAIMS UNDER FEDERAL TORT CLAIMS ACT
--- 5 = PART 16—RULES OF PRACTICE FOR FEDERALLY-ASSISTED AIRPORT ENFORCEMENT PROCEEDINGS
3 = SUBCHAPTER C—AIRCRAFT