What program provides guidance on preventing ignition of devices due to radio frequency electromagnetic fields?

The program that provides guidance on preventing ignition of devices due to radio frequency electromagnetic fields is HERO. This stands for Hazard of Electromagnetic Radiation to Ordnance. The HERO program focuses specifically on the risks associated with electromagnetic radiation, particularly the electrical ignition hazards that can occur when ordnance is exposed to radio frequency (RF) energy.

This program is crucial in military and other environments where ordnance and electronic devices coexist, ensuring safety protocols are in place to mitigate risks and prevent accidental ignition. By addressing the effects of electromagnetic fields, HERO guidelines help inform personnel and engineers about the necessary precautions and operational practices to reduce hazards effectively.

The other options, while relevant in various contexts, do not specifically focus on the risks associated with RF electromagnetic fields in relation to ignition hazards. HAZMAT deals with hazardous materials more broadly, OPNAV is related to Navy policy and operational guidance, and SOP refers to standard operating procedures, which may cover many topics but does not specifically focus on electromagnetic radiation hazards.