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OSHA and EPA jurisdiction for pesticide hazards

Summary OSHA explained how responsibility was divided when pesticides were applied at a workplace. EPA regulated pesticide applicators and farmworker reentry, while OSHA covered other employees at risk from workplace pesticide exposure. The memorandum also said arsenic-containing pesticides and wood preservatives were outside the cited inorganic-arsenic standard.
Document
Federal opinion letter
Agency
Occupational Safety and Health Administration (OSHA)
Document number
1985-06-26
Date issued
June 26, 1985
Status
Active
Status last verified October 10, 2026

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About this page: The full text below is the official document from Occupational Safety and Health Administration (OSHA). Ezel adds the plain-English summary and tracks the document's status. The official source linked on this page is authoritative for any reliance.

Jun 26, 1985

MEMORANDUM FOR: James W. Lake
Regional Administrator

FROM: John B. Miles, Jr., Director
Directorate of Field Operations

Subject: Jurisdiction for Pesticide Health Hazards

This is in response to your memorandum of May 15 requesting clarification of which Federal agency has jurisdiction over pesticide application.

Any application of a registered pesticide comes under the jurisdiction of the Environmental Protection Agency. Except for farm workers, whose health EPA seeks to protect with field reentry standards, EPA has jurisdiction for protecting the health of only the pesticide applicators, however. Any other employees at a work site who are at risk of exposure to the pesticide being applied come under the jurisdiction of OSHA.

May 15, 1985

MEMORANDUM FOR: JOHN B. MILES
Director
Directorate of Field Operations

FROM: JAMES W. LAKE
Regional Administrator

SUBJECT: OSHA Pesticide Jurisdiction

This is to request clarification of OSHA's jurisdiction or responsibilities with respect to pesticides application and/or treatment when such pesticides do not contain arsenic. Also, is there a distinction with respect to jurisdiction contingent upon whether we are dealing with pesticide treatment after infestation or initial application of a pesticide to preclude infestation?

The enclosed memorandum from our Boise Area Office posed related questions which we have decided deserve your attention.

Your assistance in clarifying this subject area for us will be appreciated.

Enclosure
May 10, 1985

MEMORANDUM FOR: JAMES W. LAKE

Regional Administrator

FROM: CINDY A. COE
Industrial Hygienist

THROUGH: WILLIAM W. NEWMAN
Acting Area Director

SUBJECT: OSHA-EPA Jurisdiction in the Application of Pesticides

Recently, in response to a complaint, I conducted an inspection of Osmose Wood Preserving Company. There was a two man crew engaged in the treatment of utility poles wherein several holes are drilled into the base of the pole and the employee pours chloropicrin into the hole. The chemical protects the pole against insect infestation. The company was cited for a serious violation of 29 CFR 1910.132(a) for not ensuring that gloves were worn by the employee handling the chloropicrin. The company has contested, stating that EPA has sole jurisdiction.

Mr. Beeston contacted the national office in this regard, and was told that EPA has jurisdiction over the application of pesticides. I am also aware of OSHA Directive CPL 2-2.22 which states that arsenic containing pesticides and wood preservatives are not within the scope of 29 CFR 1910.1018.

I contacted Bill Frutel, Environmental Protection Specialist with the Boise EPA office to find out what is being done in Idaho. He explained that the Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) gives EPA jurisdiction over the application of pesticides, however there are limitations as to their enforcement of worker safety and health. Essentially, EPA enforces that the applicator follows label directions. Often, the label will not be specific as to the safety and health provisions necessary to protect the worker. He said he would prefer it if OSHA had jurisdiction because EPA does not have "that good of a grip" on worker safety and health.

This could have wide-spread consequences in our activities as there have been several occasions where I have cited companies, primarily grain and bean elevators, warehouses and seed treatment plants for deficiencies in the protection of employees engaged in the application of pesticides. None have contested, so a question as to our authority has not arisen until this time.

We need clarification as to where OSHA's duty lies in ensuring worker safety and health in the application of pesticides.

May 3, 1985

Dr. James A. Singmaster III
Box 25151, Venezuela Sta
Rio Piedras, Puerto Rico 00928

Dear Dr. Singmaster:

Thank you for your letter of April 12, 1985, regarding the chemical, N- (or 1-) methyl-4-phenylpyridinium chloride (MPP salt).

As you may know the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) requires the Environmental Protection Agency (EPA) to register all pesticides to be marketed in the United States, based upon data adequate to demonstrate that their use will not result in unreasonable adverse effects on people or the environment.

You are concerned that MPP salt may cause adverse health effects and believe that paraquat, an herbicide, may have wastes or be contaminated with MPP salt or closely related compounds. Since MPP has never been registered by EPA, we have no data on it. Paraquat, on the other hand, is a registered pesticide which has undergone a thorough review by the Agency. However, we have no indication that MPP salt is present in the formulation. If you have some evidence to the contrary and can provide us with scientific references, we would appreciate receiving them. Such information should be sent to Mr. Thomas Adamczyk, Registration Division, EPA Office of Pesticide Programs, 401 M Street, S.W., Washington, D.C. 20460.

You also refer, in your letter to the Kansas State Commissioner of Health, to the possible exposure of workers to MPP salt. Exposure of workers to hazardous substances in the manufacturing process comes under the jurisdiction of the Occupational Safety and Health Administration (OSHA). You may wish to correspond directly with OSHA regarding your concerns.

If I can be of further assistance, please let me know.

Sincerely yours,

John A. Moore
Assistant Administrator for Pesticides and Toxic Substances
United State Environmental Protection Agency
Washington, D.C. 20460

[Incoming letters reproduced on OSHA page; omitted here.]

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