Who is authorized to perform operations involving venting of CNG?

Venting of Compressed Natural Gas (CNG) is a specialized operation that requires specific knowledge and training to be conducted safely. Trained personnel are authorized to perform these operations because they understand the inherent risks and safety protocols involved, as well as the necessary regulatory and environmental considerations.

This choice emphasizes the importance of following established written procedures that outline how to properly and safely vent CNG. These procedures are designed to minimize the risk of accidents, leaks, or other hazardous situations. Having trained personnel ensures that operations are conducted in a controlled manner, adhering to safety measures designed to protect both the workers and the environment.

The other options suggest that either untrained employees or specific groups, like third-party contractors, could perform these operations, which does not align with safety standards in the handling of CNG. Proper training and adherence to written protocols are critical for ensuring safety and compliance in all CNG operations, particularly when it involves potentially dangerous activities such as venting.