What have DOE contractors established to ensure limits are not exceeded?

The correct answer is based on the importance of monitoring exposure limits to ensure the safety of workers in radiological environments. Administrative control levels are set by organizations like the Department of Energy (DOE) to establish specific limits on radiation exposure for workers. These controls include allowable dose limits, which help manage and minimize risk by providing clear guidelines on the maximum amount of radiation employees can be exposed to over a given time period.

In this context, administrative controls serve as a proactive measure to prevent individuals from exceeding safe exposure levels, helping to safeguard their health and ensure regulatory compliance. They are typically implemented in conjunction with other measures, such as dosimetry programs that track individual exposure levels.

The other options, while relevant to safety protocols, do not directly address the issue of maintaining exposure limits. Protective clothing undress procedures primarily focus on contamination prevention. Emergency action procedures pertain to unexpected incidents requiring immediate response, while regular training sessions support knowledge and awareness but do not specifically regulate exposure limits. Thus, administrative control levels are the most critical mechanism for ensuring that workers do not exceed safe radiation exposure limits.