Final answer:
Gamma Chapter may use 'Robert's Rules of Order' as their parliamentary procedure, which is common for organizing meetings and decision-making in a fair and orderly manner.
Step-by-step explanation:
The name of the parliamentary procedure used by a group like Gamma Chapter would likely be 'Robert's Rules of Order', which is a widely adopted standard for conducting meetings and making decisions in a democratic and orderly fashion.
However, without specific information about the Gamma Chapter and its governing body or organization, it's impossible to provide a definitive answer.
These procedures are designed to ensure that meetings are fair, inclusive, and efficient, allowing all members to have their say while maintaining a structured environment.