Or. Admin. R. 437-004-9800
NOTES: The Division 4, Hazard Communication Standard for Agricultural Employers (OAR 437-004-9800), focuses on those parts of the General Industry Hazard Communication Standard (Division 2/Z, 1910.1200) that describe the employer’s responsibility to establish a workplace program and to communicate information to workers about the hazards of the chemicals used in their workplace. The Division 4 standard does not include the parts of the Division 2, Hazard Communication Standard that apply only to producers, distributors, and importers of chemicals because these are not typical activities for agricultural employers. As stated in 437-004-9800(2) Scope and application, any agricultural employer who produces, imports, or distributes chemical products must follow the more detailed rules that apply to those general industry activities in Division 2/Z, 1910.1200. The requirements of this Division 4, Hazard Communication Standard, are intended to be consistent with the Hazard Communication Standard for general industry as aligned with the provisions of the United Nations Globally Harmonized System of Classification and Labeling of Chemicals (GHS.)
(2) Scope and application.
(b) This standard also applies to agricultural employers engaged in crop- or product-related quality control- or quality assurance-type laboratory work.
NOTE: See Division 4/Z, 437-004-9860, Hazardous Chemicals in Laboratories, for rules that apply to other types of laboratory activities.
(d) The following types of hazardous substances are exempted from the requirements of this standard, under the stated conditions or circumstances:
(D) Wood or wood products, including lumber if it will not be processed, where the manufacturer or importer has established that the only hazard posed to employees is the potential for combustibility;
NOTE: Wood and wood products that are treated with a hazardous chemical covered by this standard (such as chemically pressure-treated wood); and wood that will later be sawed, cut or sanded, generating dust, is covered by this standard.
(J) Nuisance particulates where the chemical manufacturer or importer has established that they do not pose any physical or health hazard covered under this standard;
NOTE: Nuisance particulate is synonymous with “particulate not otherwise regulated” (PNOR.) PNOR includes all inert or nuisance dusts, whether mineral, inorganic, or organic, that are not specifically listed in Division 4/Z, OAR 437-004-9000, Oregon Rules for Air Contaminants.
(L) Biological hazards.
NOTES: In addition to these exempted hazardous substances, the general industry Hazard Communication Standard [at 1910.1200(b)(5)] lists additional types of hazardous chemicals whose manufacturers are not covered by the Hazard Communication labeling requirements, because the products are already regulated by other labeling regulations. (For example, labeling of consumer products is regulated by the Consumer Product Safety Commission; and labeling of pesticide products is regulated by the Environmental Protection Agency.) Nonetheless, employers must ensure that hazardous chemicals are properly identified in their workplaces, as described in 437-004-9800(5).
(4) Written hazard communication program.
(a) Employers must develop, implement, and maintain an effective written hazard communication program that is specific to their workplace. It must include the following:
(b) At multi-employer workplaces, employers who use or store hazardous chemicals in a way that may expose other employer’s workers must also ensure that their hazard communication program includes their methods for:
(c) Upon request, the employer must make their written hazard communication program available to employees, the employee’s designated representatives, and the Administrator.
NOTE: Where employees work at more than one workplace, the written hazard communication program may be kept at the primary workplace as long as the information is made available for routine reference during the employee’s regular shift and is readily available in an emergency.
(5) Labels and other forms of warning.
NOTE: Chemical producers, importers, and distributors have responsibilities for labeling products that are shipped and for providing those labels to end-users.
(b) Except as provided in (5)(d), (5)(e), and (5)(f), the employer must ensure that each container of hazardous chemicals is labeled, tagged or marked with either:
(A) The same elements required on the shipped label:
(B) The product identifier (that allows cross-referencing with the product’s safety data sheet), and
(6) Safety data sheets.
(g) Safety data sheets as employee exposure records. In accordance with Division 4/A, OAR 437-004-0005, Access to Employee Medical and Exposure Records, employers must retain either the SDS or some record of the identity of the substance or agent, where it was used, and when it was used; and, make this record available upon request to employees, employee’s designated representatives, and to the Administrator.
NOTE: OAR 437-004-0005 refers employers to Division 2/Z 1910.1020. For more information about this requirement, see 1910.1020(d)(1)(ii)(B).
(7) Employee information and training.
(a) Give employees effective information and training on hazardous chemicals in their work area at the time of their initial assignment, and when a new physical or health hazard is introduced into their work area. Information and training may cover categories of hazards (examples include flammable liquids and pesticides) or specific chemicals.
(b) Inform employees of:
(c) Employee training must include at least:
(e) For employees doing only field hand-labor operations where their only potential exposure is to residual pesticides, employers may meet the training and information requirements of this rule by:
(8) Trade secrets. There are special standards about the relationship of this standard to trade secrets. If those circumstances apply, follow Division 2/Z, 1900.1200(i) and its Appendix E.
NOTE: Division 2/Z 1910.1200(i) provides guidance for emergency medical personnel who need to obtain more detailed safety and health information about products with Trade Secret-protected ingredients. Appendix E to Division 2/Z, 1910.1200, Definition of Trade Secret, sets out the criteria to be used in evaluating trade secret claims.
(9) Subpoenas, citations, penalties.
(10) Phase-in dates for new rule requirements.
(a) By February 1, 2015, agricultural employers must train their employees about the new label elements (product identifier, signal word, hazard statements, pictograms, and precautionary statements); and, about the new, standardized, 16-section, safety data sheet (SDS) format. After this phase-in date has passed, this information must be included in the initial employee training in accordance with paragraph (7)
NOTES: Chemical producers have until June 1, 2015 to be in compliance with all the modified provisions of the Division 2/Z Hazard Communication Standard (1910.1200) including those concerning classification, labeling, and safety data sheets.
(b) By June 1, 2016, employers must, as necessary, based on any new hazards identified by chemical manufacturers on updated labels and SDSs:
(11) Definitions.
(b) Article — A manufactured item other than a fluid or particle:
(i) Crop- or product-related quality control — or quality assurance-type laboratory work — The sampling or testing of crops or agricultural products to discover defects, with the goal of improving or stabilizing production standards. This type of laboratory work at agricultural workplaces is covered by the requirements of the HCS.
NOTE: See Division 4/Z, 437-004-9860, Hazardous Chemicals in Laboratories, for rules that apply to other types of laboratory work.
(t) Handler (or Pesticide Handler) — includes any person, who is employed for any type of compensation by an agricultural establishment and who:
(G) Performs other activities included within the definition of Handler by the Environmental Protection Agency.
NOTE: For more information, see the pesticide Worker Protection Standard in Division 4/W, §170. The term “handler” does not include an employee who only handles sealed, unopened pesticide containers or empty pesticide containers.
(y) Hazardous chemical — Any chemical that is classified as a physical hazard or a health hazard, a simple asphyxiant, combustible dust, pyrophoric gas, or hazard not otherwise classified.
NOTE: Division 2/Z, 1910.1200, Appendices A and B describe the criteria producers must use for determining whether or not a chemical is a health or physical hazard for purposes of this standard.
(z) Hazard warning — The words, pictures, symbols, or combination on a label (or other appropriate form of warning) that communicate the specific physical and health hazards of the chemical(s) in the container. (See the definitions for “physical hazard” and “health hazard” to determine the hazards which must be covered by the manufacturer.)
(aa) HCS — The Hazard Communication Standard.
(bb) Health hazard — A chemical that is classified as posing one of the following hazardous effects: acute toxicity (any route of exposure); skin corrosion or irritation; serious eye damage or eye irritation; respiratory or skin sensitization; germ cell mutagenicity; carcinogenicity; reproductive toxicity; specific target organ toxicity (single or repeated exposure); or aspiration hazard.
NOTE: The criteria for determining whether a chemical is classified as a health hazard are detailed in Appendix A to 1910.1200 — Health Hazard Criteria.
(dd) Immediate use — For the purpose of this rule, describes when a hazardous chemical will be used only within the work shift in which it is transferred, be under the control of and used only by the person who transfers it from a labeled container. Under these specific conditions, a portable, secondary container is exempted from the requirement for a workplace label. (See 437-004-9800(5)(e).)
(ee) Importer — The first business with employees within the Customs Territory of the United States that receives hazardous chemicals made in other countries for the purpose of supplying them to distributors or employers within the United States.
(ff) Label — An appropriate group of written, printed or graphic information elements concerning a hazardous chemical that is affixed to, printed on, or attached to the immediate container of a hazardous chemical, or to the outside packaging.
(gg) Label elements — The specified product identifier, pictogram(s), hazard statement(s), signal word, and precautionary statement(s) that correlate to each chemical product’s hazard class and category. Also, labels must identify and provide contact information for the product’s manufacturer or other responsible party.
(hh) Manufacturer — See Producer.
(ii) Material Safety Data Sheet (MSDS) — See, “Safety Data Sheet (SDS)”.
(jj) Mixture — A combination or a solution composed of two or more substances in which they do not react.
(kk) Nonroutine task — A work activity that occurs infrequently or that varies from what is considered a regular, standard, or normal task.
(mm) Pesticide, residual — See Residual pesticide.
(nn) Physical hazard — A chemical that is classified as posing one of the following hazardous effects: explosive; flammable (gases, aerosols, liquids, or solids); oxidizer (liquid, solid or gas); self-reactive; pyrophoric (liquid or solid); self-heating; organic peroxide; corrosive to metal; gas under pressure; or in contact with water emits flammable gas.
NOTE: Physical Hazard Criteria is available in Appendix B to Division 2/Z, 1910.1200.
(oo) Pictogram — A composition that includes a red bordered square set on its point, enclosing a black symbol on a white background that is intended to convey specific information about the hazard of a chemical. Eight pictograms are designated under this standard for application to specific hazard categories.
(pp) Precautionary statement — A phrase that describes recommended measures that should be taken to prevent or minimize adverse effects resulting from exposure to, or improper storage or handling of a hazardous chemical.
(qq) Producer — For the purposes of this rule, an employer with a workplace where chemicals are manufactured, processed, extracted, generated, formulated, or repackaged for use or for distribution.
NOTE: If you mix or blend chemical products for use in your own workplace, and the resulting mixture has no new chemical ingredients or new hazardous characteristics, you can use the SDSs for the component ingredients and you are not considered to be a “producer.” (An example is mixing granular fertilizers together for application on your own property.) However, if the combined chemicals react to create a new ingredient or the combination creates a new hazard, you become a “producer” and you must follow the more detailed rule requirements in the Division 2/Z, 1910.1200, Hazard Communication Standard.
(rr) Product identifier — The unique name or number used on the label and in the SDS that provides a means by which the user can identify the hazardous chemical. (Examples include the chemical name, Chemical Abstracts Service (CAS) Registry Number, or other precise designation of the substance.) The product identifier must allow cross-referencing of the product’s label with the product’s SDS, and the list of hazardous chemicals in the employer’s written hazard communication program.
(ss) Pyrophoric gas — A chemical in a gaseous state that will ignite spontaneously in air at a temperature of 130 degrees F (54.4 degrees C) or below.
(tt) Residual pesticide — Pesticide residue that remains on crops, soil, equipment or other work surfaces, after a pesticide application is completed and any label-required restricted entry interval (REI) has expired. For the purpose of providing hazard information, a Safety Data Sheet must be available for any pesticide that has been used at the workplace within the previous 30 days.
(uu) Responsible party — As used on a Label or Safety Data Sheet, someone who can provide additional information on the hazardous chemical and appropriate emergency procedures, if necessary.
(vv) Restricted entry interval (REI) — The time period that immediately follows a pesticide application (as specified on the product label) during which only trained and protected employees may enter into the treated area. (The treated area is the physical location where a pesticide is being or has been applied.)
(ww) Safety data sheet (SDS) — Written or printed information about a hazardous chemical that is prepared (generally by the manufacturer) in accordance with paragraph (g) of and Appendix D to Division 2/Z, 1910.1200.
(xx) Signal word — A word used to alert the reader of the product label to a potential hazard. The signal words used in this section are ‘‘DANGER’’ and ‘‘WARNING’’ ‘‘DANGER’’ is used for the more severe hazards, while ‘‘WARNING’’ is used for the less severe. These words are chosen by the manufacturer based on the classification and categorization of the chemical’s hazards.
NOTE: The EPA has jurisdiction over manufacturers of pesticides and currently has its own system of signal words used on pesticide labels.
(yy) Simple asphyxiant — A substance or mixture that displaces oxygen in the ambient atmosphere, and can thus cause oxygen deprivation in those who are exposed, leading to unconsciousness and death.
(zz) Specific chemical identity — See “Product identifier”.
(aaa) Substance — Chemical elements and their compounds in the natural state or obtained by any production process, including any additive necessary to preserve the stability of the product and any impurities deriving from the process used, but excluding any solvent which may be separated without affecting the stability of the substance or changing its composition.
(bbb) Trade secret — A confidential formula, pattern, process, device, information or compilation of information that is used in an employer’s business, and that gives the employer an opportunity to obtain an advantage over competitors who do not know or use it.
NOTE: Division 2/Z 1910.1200(i) provides guidance for emergency medical personnel who need to obtain more detailed safety and health information about products with Trade Secret-protected ingredients. Appendix E to Division 2/Z, 1910.1200 — Definition of Trade Secret, sets out the criteria to be used in evaluating trade secret claims.
(ddd) Work area — A room or defined space in a workplace where hazardous chemicals are used, and where there are employees.
(eee) Workplace — An establishment, job site, or project, at one geographical location with one or more work areas.
[ED. NOTE: Appendices referenced are available from the agency.]
[Publications: Publications referenced are available from the agency.]
ORS 654.025(2) & 656.726(4)
ORS 654.001 - 654.295
OSHA 1-2026, amend filed 05/29/2026, effective 07/01/2026
OSHA 3-2014, f. & cert. ef. 8-8-14
OSHA 4-1998, f. 8-28-98, cert. ef. 10-1-98