What does "May" imply in a set of instructions?

In the context of a set of instructions, the term "May" indicates that an action or procedure is optional. This means that the individual has the discretion to choose whether or not to follow the instruction. Unlike mandatory or required instructions, which leave no room for choice, the use of "May" suggests that while the option is available, it is not compulsory. This allows for flexibility based on circumstances or personal preference. Understanding this distinction is essential for correctly interpreting guidelines and knowing when adherence is necessary versus when alternatives are acceptable.