What must ships write to manage RF environments based on ordnance susceptibility?

The requirement for ships to manage RF environments, specifically concerning ordnance susceptibility, is encapsulated in the HERO EMCON Bill. HERO stands for Hazards of Electromagnetic Radiation to Ordnance, which highlights the risks that electromagnetic radiation can pose to munitions and ordnance safety.

This document delineates procedures and precautions for operating communication and radar systems while ensuring that these operations do not inadvertently trigger ordnance due to electromagnetic exposure. By outlining the specific parameters for radio frequency emissions, the HERO EMCON Bill is vital for safeguarding both personnel and equipment, maintaining operability while minimizing risk.

The other options, while related to safety and communication, do not specifically focus on the unique hazards posed by electromagnetic radiation to ordnance. The Ordnance Safety Bill generally pertains to the safe handling, storage, and transportation of munitions rather than electromagnetic considerations. Radio Communication Protocol addresses procedures for radio communications, which do not include specifics related to ordnance susceptibility. The Emergency Response Plan is a broader policy aimed at overall crisis management and response, not directly linked to the specific RF hazards associated with ordnance. Thus, the HERO EMCON Bill is the correct and most relevant document to manage these RF environments effectively.