(1) After the application of any pesticide to an area of outdoor production, the agricultural employer must not allow or direct any worker to enter or to remain in the treated area before the restricted-entry interval specified on the pesticide product labeling has expired and all treated area warning signs have been removed or covered, except for early-entry activities permitted in WAC 16-233-306.

(2) After the application of any pesticide to an area of enclosed space production, the agricultural employer must not allow or direct any worker to enter or to remain in the areas specified in column 4 of Table 2 in WAC 16-233-111 (2)(d), before the restricted-entry interval specified on the pesticide product labeling has expired and all treated area warning signs have been removed or covered, except for early-entry activities permitted in WAC 16-233-306.

(3) When two or more pesticides are applied to a treated area at the same time, the applicable restricted-entry interval is the longest of all applicable restricted-entry intervals.

(4) When two or more pesticides are applied to a treated area at the same time, the employer must provide and ensure employees, workers, and handlers wear the applicable PPE to protect against all of the pesticides as a mixture and combined product.