Parliamentary procedures:

The nature of parliamentary procedures is to establish a framework for conducting meetings in an orderly and efficient manner, which is essential for effective governance in associations. Following these procedures ensures that all participants understand the process, leading to organized and productive meetings.

When parliamentary procedures are defined in the governing documents of an association, they guide how meetings should be conducted to ensure compliance with the organization's established standards. This creates a formal structure that can help in decision-making and in addressing members' concerns effectively.

The requirement for parliamentary procedures to be followed at all association meetings is typically integrated as a best practice rather than as an absolute mandate. However, their adoption leads to more effective governance and helps maintain civility during discussions.

Therefore, since parliamentary procedures contribute to organized meetings, can be specified in governing documents, and are set as a standard practice in association meetings, all the statements are indeed correct, justifying that 'all of the above' is the accurate choice.