8.2.3.1 NOTE: Certain countries or regions may be exempt from the above color schemes and formats. Regional or country-specific regulations define the shape, color and requirement for use of pictograms. Facilities must accordingly choose signage which adequately communicates that entry is not allowed without a permit and also communicates that the confined space poses a hazard. Supplementary wording must also be included to clearly state it is a permit-required / non permit-required confined space.