Which certifications allow a COF holder to inspect and perform routine maintenance?

The certification that enables a Certificate of Fitness (COF) holder to inspect and perform routine maintenance is the group that includes Refrigeration Operating Engineer, High Pressure Operating Engineer, and NYS High Pressure Operating Engineer. These certifications are specifically designed for individuals who work with high-pressure systems and refrigeration, providing the necessary knowledge and skills required for maintenance and inspection of such equipment.

Holding these certifications aligns with the responsibilities of ensuring that systems operate efficiently and safely, complying with appropriate codes and regulations. Individuals with these certifications are knowledgeable about the mechanics and safety protocols related to high-pressure systems, which is essential for effective inspection and routine maintenance tasks.

In contrast, while Heat Pump Technician Certification may deal with specific technologies in HVAC systems, it does not encompass the broader scope required for inspecting and maintaining high-pressure and refrigeration systems. Mechanical Engineer Certification focuses more on engineering principles rather than on practical maintenance skills and responsibilities. Similarly, a Certified Safety Professional is centered around safety regulations and practices, which, while important, do not directly relate to the operational inspection or maintenance of specific systems.

Thus, the group of certifications in option B is recognized for its direct application to the duties associated with inspection and routine maintenance, making it the correct choice.