What EPA regulation serves as a stand-in for departments lacking state OSHA plans?

The correct answer is 40 CFR 311, which addresses the community right-to-know provisions and ensures that information about hazardous chemicals is communicated to employees and the public. This regulation is particularly relevant for states that do not have their own OSHA (Occupational Safety and Health Administration) plans in place. As a result, 40 CFR 311 acts as a fallback for ensuring that workplace safety standards concerning hazardous substances are still upheld in those jurisdictions.

In contrast, 29 CFR 1910 pertains to general industry standards that OSHA has established, focusing on various safety and health requirements. Meanwhile, 29 CFR 1926 specifically covers safety and health regulations for the construction industry. 40 CFR 300 involves the National Oil and Hazardous Substances Pollution Contingency Plan, which is broader and more focused on environmental cleanup rather than on workplace safety concerns directly applicable to OSHA standards. Therefore, 40 CFR 311 is crucial for maintaining regulatory safety standards where state plans are absent.