Accuform Signs safety sign, legend "Cardboard Only" (with graphic). The Occupational Safety and Health Administration (OSHA) and American National Standards Institute (ANSI) provide specifications, designs, applications and use of header-style accident prevention safety signs. These safety signs are intended to indicate the potential, type and degree of the hazard that may lead to accidental injury and property damage. Accident prevention signs are intended to convey a clear and rapidly understood message of the specific hazards. In addition to the specific OSHA and ANSI standards on signage, various standards throughout may contain a single line mention that a particular accident prevention safety sign with specific wording or thereof, is required for that application. Green on white color combination. Measures 7-inches width by 10-inches height.