The Application Exclusion Zone (AEZ) is the area surrounding the application equipment during outdoor production pesticide applications. The size of the AEZ is determined by the application method and the spray quality. Once the application is complete, the AEZ no longer exists and the REI becomes effective for the treated area.
Effective January 2, 2017: An Agricultural Employer must not allow any workers or other persons in the AEZ within the boundaries of the agricultural establishment during the application
Effective January 2, 2018: Pesticide Handlers must suspend pesticide applications if any person enters or is in the AEZ
During pesticide applications in enclosed space production areas, the Agricultural Employer must not allow or direct any worker or other person, other than the handler(s) involved with the application, to enter or to remain in specific areas for specific times or conditions. The restrictions depend on the types of pesticides or application methods used.
- Location and description of any treated area on the ag establishment under an REI that the Handler may be in or walk within a quarter mile of and specific restrictions
- Length of the REI.
When a pesticide is applied that has a skull and crossbones on the label the applicator must be monitored by sight or voice communication once every two hours. During the application of a fumigant in an enclosed space production area, another Pesticide Handler stationed immediately outside of the enclosed space must maintain constant visual or voice contact with the applicator.
The Application Exclusion Zone (AEZ) is the area surrounding the application equipment during outdoor production pesticide applications. The size of the AEZ is determined by the application method and the spray quality. Once the application is complete, the AEZ no longer exists and the REI becomes effective for the treated area.
Effective January 2, 2017: An Agricultural Employer must not allow any workers or other persons in the AEZ within the boundaries of the agricultural establishment during the application
Effective January 2, 2018: Pesticide Handlers must suspend pesticide applications if any person enters or is in the AEZ
During pesticide applications in enclosed space production areas, the Agricultural Employer must not allow or direct any worker or other person, other than the handler(s) involved with the application, to enter or to remain in specific areas for specific times or conditions. The restrictions depend on the types of pesticides or application methods used.
Personal Protective Equipment (PPE)
The pesticide product label specifies the minimum level of PPE that must be worn when mixing, loading and applying pesticides, and for early-entry workers to enter a pesticide treated area that is under a REI.
When a pesticide label requires a respirator to be worn the employer must provide the handler, prior to using a respirator, with the following:
- Medical evaluation
- Fit testing
- Annual respirator training
Records of the medical determination, fit testing and respirator training must be kept for two years.
When a pesticide label requires a respirator to be worn the employer must provide the handler, prior to using a respirator, with the following:
- Medical evaluation
- Fit testing
- Annual respirator training
Records of the medical determination, fit testing and respirator training must be kept for two years.
When a pesticide label requires a respirator to be worn the employer must provide the handler, prior to using a respirator, with the following:
- Medical evaluation
- Fit testing
- Annual respirator training
Records of the medical determination, fit testing and respirator training must be kept for two years.
Equipment Safety
Pesticide application equipment and PPE must be cleaned, inspected and maintained on a regular basis.
Entry during a Restricted Entry Interval (REI)
Early-entry workers must:
- be at least 18 years old
- receive specific instructions prior to early entry in a manner that the worker can understand
- read the applicable pesticide labeling or be informed, in a manner the worker can understand, of all labeling statements related to human hazards or precautions, first aid and user safety
- wear PPE for early-entry workers as stated on the pesticide label
The decontamination supplies for early entry must meet the standards required for handlers. If the pesticide label requires “protective eyewear”, one pint of water in a portable container must be immediately available to each early-entry worker.
Notice of Application/Entry Restrictions (Oral Warnings & Posting)
Employers must notify workers of pesticide applications and of the entry restrictions for each situation if the worker will be within a quarter mile of the pesticide application site or an existing REI. Notification can be given orally or by posting warning signs.
- Posting of warning signs:
- in outdoor production areas with REI GREATER THAN 48 HOURS, workers must be notified by posting warning signs
- in enclosed space production areas with REI GREATER THAN FOUR HOURS, workers must be notified by posting warning signs
- Posting of warning signs OR giving oral warning:
- in outdoor production areas with a REI EQUAL to or LESS THAN 48 HOURS, workers must be notified either by posting warning signs or by giving them oral warning
- in enclosed space production areas with a REI EQUAL to or LESS THAN FOUR HOURS, workers must be notified by posting warning signs or by giving them oral warning
Oral warning must include the location of the treated area, dates and times of entry restriction, and instructions not to enter the treated area or AEZ during an application.
Some pesticide labels require double notification. In such cases the workers must be notified by posting warning signs AND by giving them oral warning.
For details about the WPS, refer to the manual “How to Comply With the 2015 Revised Worker Protection Standard For Agricultural Pesticides”.
