The owners identification code and the container serial number shall be stenciled with black stencil paint in
characters at least 0.50 inch high on an area 18 inches from the corner post where it will not be obscured.
The following additional markings will be stenciled in 2 inch high black lettering on the interior:
(1) "WARNING: DO NOT BLOCK AIR CIRCULATION" shall be stenciled below the refrigeration unit, centered
on the front wall (9) in characters at least 2 inches high.
(2) "ESCAPE HATCH" shall be stenciled on the top half of the hatch (10) in characters at least 3 inches high.