Which of the following is established by federal or state law but enforced at the company level?

The correct choice is that rules or regulations are established by federal or state law but enforced at the company level because these are typically created to provide specific guidance on how to implement broader legislative mandates. Federal and state laws set the overarching framework for various fire safety and operational norms, while rules or regulations provide the detailed requirements and procedures that organizations must follow to comply with those laws.

These rules or regulations often focus on ensuring safety and operational efficiency within fire departments or related entities, requiring local enforcement to ensure they are adhered to in practice. Enforcement at the company level allows for a more tailored application of these regulations, as local entities can adapt their enforcement strategies based on the specific context and resources of their operations.

In contrast, fire safety codes and national fire standards typically represent minimum requirements or guidelines that may not directly mandate enforcement at a company level but rather serve as broader benchmarks. Local ordinances, while they may be enforced at the company level, are more localized laws that relate specifically to community needs and regulations rather than being a direct result of federal or state legislation.