In the US codes related to fire are primarily found in:

• A. OSHA
• B. DOT
• C. NFPA
• D. EPA

Answer: (A)

Fire-related requirements in the United States are enforced primarily through OSHA, the federal agency that writes and enforces workplace safety standards. These OSHA rules specify what employers must do to prevent fires and protect workers, including requirements for fire prevention plans, means of egress, fire extinguisher placement, and training. NFPA develops widely used fire protection standards, and many jurisdictions reference or adopt NFPA codes in their building and fire codes, but they become enforceable mainly when adopted or incorporated by OSHA references. The other agencies focus on different areas—DOT on transportation safety and EPA on environmental protection—so they aren’t the primary sources for fire codes in general.