prohibition sign design characteristics are governed by regional and international standards. The symbol’s canonical definition comes from the International Organization for Standardization which drafted ISO 3864-1 in 2002, a revision of a standard first drafted in 1984. The current version was drafted in 2011.
Prohibition Sign
do not enter sign do not touch dwg do not touch sign no access sign no entry sign no food or drink sign no mobile phones sign no open flames sign no parking sign no pets allowed sign no photography sign no smoking sign no trespassing sign Pictogram Prohibition restricted area sign safety prohibition signs signage cad drawings workplace prohibition signs