What is the maximum weight for Class A or C head protection?

The correct maximum weight for Class A or C head protection is indeed 15 ounces. This specification is in place to ensure that the head protection gear is lightweight enough for comfort and practicality while still providing adequate protection. Heavier gear could lead to fatigue and decreased mobility, which is crucial when working in environments where head safety is a priority. The standards set for head protection in these classes help balance the need for safety with the necessity of comfortable use over extended periods of time, ultimately fostering a safer work environment.

Other choices either exceed this weight limit or fall short, thus not aligning with the established standards for head safety in Class A or C classifications.