Home > Browse > Title 49 > Chapter 421 Title 49, Chapter 421 Transportation — 4 sections § 42106 Section 42106 - Repealed. Pub. L. 105–220, title I , § 199(a)(6), Aug. 7, 1998 , 112 Stat. 1059 ] § 42111 Section 42111 - Mutual aid agreements § 42112 Section 42112 - Labor requirements of air carriers § 42121 Section 42121 - Protection of employees providing air safety information