During normal business hours, what may the Commission inspect to verify compliance with the LP-gas Safety Rules?

The correct choice highlights the authority of the Commission in inspecting files, records, and documents as part of verifying compliance with LP-gas Safety Rules during normal business hours. This is essential because documentation is a critical component of safety and compliance in the handling and distribution of liquefied petroleum gas. These records can include safety training certifications, maintenance logs, compliance records, and incident reports. Assessing the documentation helps ensure that operators and companies adhere to safety regulations and have the necessary protocols in place to mitigate risks associated with LP-gas.

In the context of LP-gas operations, while inspecting the equipment and accessories is important for physical compliance, it is the documentation that provides a comprehensive view of ongoing adherence to safety protocols and regulations, as it often reflects the operational practices and safety measures implemented by the company. This paperwork serves as evidence of compliance and is necessary for effective oversight by regulatory bodies.

Inspection of vehicles or installation manuals alone would not sufficiently cover compliance verification, as they are only portions of the overall regulatory requirements. In contrast, a thorough review of files and records encompasses multiple aspects of regulatory compliance, therefore making this choice the most relevant in assessing safety adherence in the LP-gas sector.