United States. Department of Commerce. Aeronautics Branch

• Air Commerce regulations
• Air traffic rules
• Airport design and construction
• Airport rating regulations
• Airworthiness requirements for aircraft components and accessories
• Construction of airports, April, 1928
• Department of commerce regulations governing entry and clearance of aircraft effective as amended April 7, 1931 and United States airport of entry regulations effective November 1, 1931
• Designing safe and adequate airports
• Information bulletin
• Physical standards for airplane pilots (including standards for lighter-than-air pilots) and appendix of reference text
• Preparation for visit of airport specialist
• State aeronautical legislation and compilation of state laws