Subchapter III. Public Transportation Security 6 U.S. Code §1131. Definitions 6 U.S. Code §1132. Findings 6 U.S. Code §1133. National Strategy for Public Transportation Security 6 U.S. Code §1134. Security assessments and plans 6 U.S. Code §1135. Public transportation security assistance 6 U.S. Code §1136. Security exercises 6 U.S. Code §1137. Public transportation security training program 6 U.S. Code §1138. Public transportation research and development 6 U.S. Code §1139. Information sharing 6 U.S. Code §1140. Threat assessments 6 U.S. Code §1141. Reporting requirements 6 U.S. Code §1142. Public transportation employee protections 6 U.S. Code §1143. Security background checks of covered individuals for public transportation 6 U.S. Code §1144. Limitation on fines and civil penalties