Storage areas for stationary or portable containers of cryogenic fluids in any quantity shall be ventilated in accordance with Section 18-28-502.7. Indoor areas where cryogenic fluids in any quantity are dispensed shall be ventilated in accordance with the requirements of Section 18-28-502.7.4 in a manner that captures any vapor at the point of generation.
Exception: Ventilation for indoor dispensing areas is not required where it can be demonstrated that the cryogenic fluids do not create harmful vapors.