I have read in the MAAA Manual of Procedures that there are both requirements and recommendations. What is the difference?
Requirements have to be complied with, although clubs may decide to go beyond what the MAAA states. Recommendations are not mandatory but may cover good practice including safety issues. Clubs and members should always carefully consider all recommendations and if they decide to do something different be prepared to justify their decision. For example in some safety cases, an implementation cannot be specified by the MAAA, as the layout and constraints on individual clubs vary. A mandated requirement might not be practical but a totally satisfactory alternative could achieve the same outcome.