What is risk acceptance criteria and how is it used?

• A. A predefined level of risk considered tolerable; used to decide whether further controls are required.
• B. A guide for budgeting safety measures.
• C. A measure of production efficiency.
• D. A standard for emergency drill duration.

Answer: (B)

Risk acceptance criteria are the predefined level of risk that an organization considers tolerable for a given operation. This threshold lets you decide whether the remaining risk after implementing controls is acceptable or if more risk reduction is needed. In practice, after identifying hazards and estimating risk, you compare the residual risk to this criterion. If it’s below the threshold, the risk is accepted and operations can proceed with the current controls. If it’s above the threshold, you must add or strengthen controls to bring the risk down to an acceptable level, or reassess the risk-benefit balance.

This concept is connected to ALARP (as low as reasonably practicable), where you continually seek to reduce risk in a cost- and effort-conscious way until it is within the acceptable range. For example, if the risk of a hazardous release is estimated at 1 in 100,000 per year and the acceptance criterion is 1 in 1,000,000, further controls would be required to reduce that risk. If the estimate were 1 in 2,000,000, it would be considered acceptable under the criterion.

The other options describe things unrelated to risk acceptance criteria, such as budgeting safety measures, measuring production efficiency, or setting a drill duration standard.