Which of the following is crucial for maintaining an effective grounding system?

Regular inspections and testing are essential for maintaining an effective grounding system because they help ensure that the system continues to function properly over time. Grounding systems can degrade due to environmental factors, mechanical wear, and corrosion. By routinely inspecting and testing the grounding components, any potential issues can be identified and addressed before they lead to system failures or safety hazards. This proactive approach not only verifies that the grounding connections are secure and effective but also helps in maintaining compliance with applicable codes and standards, which are critical for the safety and reliability of electrical installations.