Each warning sign must look like the one at the right. You may put additional information on the warning sign, such as the name of the pesticide or the date of application, if it does not lessen the impact of the sign or change the meaning of the required information. If you add the required information in other languages, the words must be translated correctly. The signs must be at least 14 inches by 16 inches, and the letters must be at least 1 inch high. For example, when a single potted plant needs to be posted, a smaller sign would be appropriate.
Communication Provide oral warnings to workers in a manner that they can understand.
Timing Workers who are on your establishment at the start of an application must be orally warned before the application takes place. Worker employers also must take actions, described below, to protect workers during restricted-entry intervals. Keep everyone except appropriately trained and equipped handlers out of areas being treated with pesticides. In nurseries and greenhouses, during some applications, also keep such persons out of the area immediately around the area being treated. In some greenhouse situations, the greenhouse must be adequately ventilated before workers are allowed to enter.