Are Appendix E “must” statements required by rule, or are they merely guidance statements?
Appendix E to Part 192 is guidance and does not contain requirements. Where “must” is used to provide guidance for what an operator must do to comply with a requirement in the body of Subpart O, then that action may be required as a result of the language in the rule body. Compliance with Appendix E is not required solely because of the use of “must” statements.
