PDFWAC 16-228-1550
What are the requirements for apparatus display signs?
(1) A certified applicator making a landscape application shall display the name and telephone number of the applicator or applicator's employer on any power equipment.
(2) A certified applicator making a right of way application shall display the name and telephone number of the applicator or the applicator's employer and the words "vegetation management application."
(3) Apparatus display signs shall be attached to and prominently displayed on the application apparatus and shall be clearly visible.
(4) Lettering of the apparatus display signs shall be, at a minimum, two inches in height and shall be printed in color contrasting to the background.