Final answer:
The InterNACHI member's prohibition against engaging in damaging, seditious, or destructive acts is true.
Step-by-step explanation:
The statement provided in the question is true. The InterNACHI member is not allowed to engage in any act or practice that could be deemed damaging, seditious, or destructive to fellow InterNACHI members. This prohibition is in place to promote a supportive and collaborative environment within the organization.