If you have a vehicle without racks to hold cylinders of compressed gas, you may load such cylinders if they are:

• A. Upright
• B. Braced Laying Down Flat
• C. Upright or Braced Laying Down Flat
• D. Not Allowed

Answer: (C)

The key idea is that compressed gas cylinders must be secured to prevent movement and protect the valve during transit. If there are no racks, you may load them upright, secured to a fixed part of the vehicle so they can’t tip or slide. If upright loading isn’t possible, you can place them on their side but only if they’re braced to prevent rolling and tightly restrained so they cannot shift. This is why both orientations are allowed: upright protects the valve and keeps the cylinder stable, while braced on its side provides a secured alternative when upright isn’t feasible. Leaving cylinders unrestrained or not braced would risk tipping, valve damage, or cargo movement in a crash.