titled Aeronautics and Space with Chapter 1 dedicated to the  FAA. Subchapters are broken down by category with numbered  parts detailing specific information.  [Figure 1-3]  For ease of  for the certification of airmen and aircraft, as well as outlining  operating rules. This is accomplished through the Code of  Federal Regulations (CFR), formerly referred to as Federal  Aviation Regulations (FAR). Title 14 of the CFR (14 CFR) is  1-3 Figure 1-3. Title 14 CFR, Chapter 1, Aeronautics and Space and subchapters. Title 14 Code of Federal Regulations Aeronautics and Space Subchapter A Definitions and General Requirements Part 1  Definitions and Abbreviations Subchapter B Procedural Rules Part 11  General Rulemaking Procedures  Part 17  Procedures for Protests and Contract Disputes Subchapter C Aircraft Part 21  Certification Procedures for Products and Articles Parts 23—31  Airworthiness Standards for Various Categories of Aircraft Part 39  Airworthiness Directives Part 43  Maintenance, Preventive Maintenance, Rebuilding and Alteration Part 45  Identification and Registration Marking Subchapter D Airmen Part 61  Certification: Pilots, Flight Instructors and Ground Instructors  Part 67  Medical Standards and Certification Subchapter E Airspace Part 71  Designation of Class A,B,C,D and E Airspace Areas; Air Traffic Service Routes; and Reporting Points Part 73  Special Use Airspace Subchapter F Air Traffic and General Operating Rules Part 91  General Operating and Flight Rules Part 97  Standard Instrument Procedures Part 103  Ultralight Vehicles Subchapter G Air Carriers and Operators for Compensation or Hire: Certification and Operations Part 110 - 139 General and Operating Requirements Subchapter H Schools and Other Certificated Agencies Part 141  Pilot Schools Part 142  Training Centers Subchapter I  Airports  Part 150 - 169 Subchapter J Navigational Facilities  Part 170 - 171 Subchapter K Administrative Regulations  Part 183 - 193 CHAPTER 1 Federal Aviation Administration, Department of Transportation 14 Part 1 to 59 Revised as January 27, 2012 Aeronautics and Space