Specifications for the construction of oxygen cylinders are prepared by which body?

• A. Fire marshal in each state
• B. Interstate Commerce Commission
• C. Interstate Cylinder Institute
• D. Companies that manufacture them

Answer: (B)

The main idea is that there are national, cross-state rules that govern how compressed gas cylinders are built and tested to ensure safe transport and use. The body that sets these specifications for oxygen cylinders is the Interstate Commerce Commission, because it provided the nationwide framework governing interstate transportation and the safety standards manufacturers must meet across state lines. This ensures a consistent, uniform standard for cylinder dimensions, materials, wall thickness, hydrostatic testing, labeling, and other safety requirements, regardless of where the cylinder is made or used.

Local fire marshals enforce fire codes within a state and don’t establish nationwide construction standards. An organization called the Interstate Cylinder Institute isn’t a recognized regulator with authority to set nationwide specs. And while manufacturers must follow standards, they themselves don’t set the overarching interstate rules; they implement them to meet the regulatory requirements.