According to ASME B30.5, where must a hand signal chart be posted?

The requirement for a hand signal chart to be posted "conspicuously" ensures that it is easily visible and accessible to all personnel involved in the operation, particularly those communicating with the crane operator. By placing the chart in a location that is noticeable, it facilitates safer operations and helps prevent misunderstandings during the lifting process. This aligns with best practices for safety in overhead crane operations, as clear communication is essential in preventing accidents and ensuring everyone's safety on the job site. The conspicuous posting of the hand signal chart signifies its importance as a reference tool, fostering a clear line of communication between signal persons and operators. Other choices, while possibly relevant in specific contexts, do not emphasize the essential requirement for visibility and accessibility as effectively as the correct answer does.