PDFWAC 16-202-220
Site posting.
(1) The certified applicator must ensure compliance with posting requirements as specified on any pesticide product label.
(2) Posting, if required, for a chemigation operation, must occur no more than 24 hours before the start of a chemigation operation, unless indicated otherwise in rule or by the pesticide label.
(3) Posting must be removed no later than 72 hours after at the conclusion of the restricted reentry interval, unless indicated otherwise in rule or by the pesticide label.
(4) Postings must meet all requirements of the worker protection standard (chapter 16-233 WAC).