What type of training does EM 385-1-1 require for personnel working in confined spaces?

The correct choice emphasizes the need for specialized training for personnel working in confined spaces, as outlined by EM 385-1-1. This type of training is crucial because confined spaces present unique hazards, such as limited entry and exit, potential for toxic atmospheres, and the risk of engulfment.

Specialized training ensures that workers are equipped with the knowledge and skills necessary to identify these specific hazards, implement appropriate safety measures, and use personal protective equipment effectively. Additionally, it prepares personnel to respond adequately to emergencies that may arise within confined spaces, thereby promoting a safer working environment. Emphasizing hazard recognition and safe practices is paramount in helping workers understand the risks associated with confined spaces and how to mitigate them.

The other options do not adequately address the complexities and dangers associated with confined space work. Simply having no specific training, relying on only safety briefings, or settling for general employee training fails to provide the necessary comprehension and preparedness for the specific risks involved.