Kearney Agricultural Research and Extension Center EHS
University of California
Kearney Agricultural Research and Extension Center EHS

Pesticide Application Restricted Entry Interval

Field REI
Kearney Research and Extension Center has adopted the following Pesticide Application Restricted Entry Interval (REI) Procedures to establish guidelines that are to be followed whenever there is access to any field, crop, or commodity that has received a recent pesticide application on Kearney Research and Extension Center property. 

The procedures here establish uniform requirements designed to ensure that the procedures for reentry into to any field, crop, or commodity that has received a recent pesticide application is communicated to and understood by all affected employees. These requirements also are designed to ensure that procedures are in place to safeguard the health and safety of all employees and contractors of KREC.

Basic Responsibilities: Each employer and/or employee supervisor must make sure that the employees under their responsibility understand and abide to the following guidelines. General Restrictions: After the application of any pesticide on an agricultural establishment, the agricultural employer shall not allow or direct any worker to enter or to remain in the treated area before the restricted-entry interval specified on the pesticide labeling has expired, except as provided in this section.

When two or more pesticides are applied at the same time, the REI shall be the longest of the applicable intervals with the exception of organophosphates or carbamates where the REI interval shall be 1 ½ the longest REI.

 Exception for activities with no contact. A worker may enter a treated area during a restricted-entry interval if the agricultural employer and/or researcher assure that both of the following are met:

  1. The worker will have no contact with anything that has been treated with the pesticide to which the restricted-entry interval applies, including, but not limited to, soil, water, or surfaces of plants; and
  2. No such entry is allowed until any inhalation exposure level listed in the labeling has been reached or any ventilation criteria established by the labeling have been met.

 Exception for short-term activities. A worker may enter a treated area during a restricted-entry interval for short-term activities if the agricultural/research employer assures that the following requirements are met:

  1. No hand labor activity is performed.
  2. The time in treated areas under a restricted-entry interval for any worker does not exceed 1 hour in any 24-hour period.
  3. No such entry is allowed for the first 4 hours following the end of the application, and no such entry is allowed thereafter until any inhalation exposure level listed in the labeling has been reached or any ventilation criteria in the labeling have been met.
  4. The personal protective equipment specified on the product labeling for early entry is provided to the worker.
  5.  The agricultural employer/responsible Principal Investigator shall assure that the worker, before entering the treated area, either has read the product labeling or has been informed, in a manner that the worker can understand, of all labeling requirements related to human hazards or precautions, first aid, symptoms of poisoning, personal protective equipment specified for early entry, and any other labeling requirements related to safe use.

The Agricultural Employer/ Responsible Principal Investigator Shall Assure That:

  1. Workers wear the personal protective equipment correctly for its intended purpose and use personal protective equipment according to manufacturer's instructions.
  2. Before each day of use, all personal protective equipment is inspected for leaks, holes, tears, or worn places, and any damaged equipment is repaired or discarded.
  3. Personal protective equipment that cannot be cleaned properly is disposed of in accordance with any applicable Federal, State, and local regulations.
  4.  All personal protective equipment is cleaned according to manufacturer's instructions or pesticide product labeling instructions before each day of reuse. In the absence of any such instructions, it shall be washed thoroughly in detergent and hot water.
  5. Before being stored, all clean personal protective equipment is dried thoroughly or is put in a well-ventilated place to dry.
  6.  Personal protective equipment contaminated with pesticides is kept separately and washed separately from any other clothing or laundry.
  7. All clean personal protective equipment is stored separately from personal clothing and apart from pesticide-contaminated areas.
  8. Each worker is instructed how to put on, use, and remove the personal protective equipment and is informed about the importance of washing thoroughly after removing personal protective equipment.
  9. Each worker is instructed in the prevention, recognition, and first aid treatment of heat-related illness.
  10. Workers have a clean place(s) away from pesticide-storage and pesticide-use areas for storing personal clothing not in use; putting on personal protective equipment at the start of any exposure period; and removing personal protective equipment at the end of any exposure period.
  11. When personal protective equipment is required by the labeling of any pesticide for early entry, the agricultural employer shall assure that no worker is allowed or directed to perform the early-entry activity without implementing, when appropriate, measures to prevent heat-related illness.
  12. The agricultural employer shall not allow or direct any worker to wear home or to take home personal protective equipment contaminated with pesticides.
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