HazCom Training Answers (OSHA 1910.1200)
HazCom training answers for independent study: review 73 Hazard Communication Standard questions, the ones trainees report first, each answered from and quoted from 29 CFR 1910.1200 as updated in 2024, on eCFR, or OSHA's own HazCom publications. Not an official answer key for any employer's training quiz.
OSHA Hazard Communication Standard practice questions: GHS labels, signal words, pictograms, the 16-section safety data sheet, written programs and worker training, cited to the current 29 CFR 1910.1200.
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01What does SDS Section 1, Identification, cover for the chemical's identity?
The product identifier used on the label and other common names or synonyms, the name, address and phone number of the manufacturer, importer or other responsible party plus an emergency phone number, and the recommended use and any restrictions on use. 29 CFR 1910.1200(g)(2)(i) lists Section 1 as Identification.
VERIFIED AGAINST THE SOURCE
“(i) Section 1, Identification;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗02What does SDS Section 2, Hazard(s) Identification, cover?
The hazards of the chemical and the warning information for them: the hazard classification, signal word, hazard statement(s), pictograms and precautionary statement(s), plus any hazards not otherwise classified.
VERIFIED AGAINST THE SOURCE
“(ii) Section 2, Hazard(s) identification;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗03What does SDS Section 3, Composition/Information on Ingredients, cover?
The ingredients in the product, including impurities and stabilizing additives, for substances, mixtures and chemicals claimed as trade secrets: for a substance, the chemical name, common name and synonyms, and CAS number.
VERIFIED AGAINST THE SOURCE
“(iii) Section 3, Composition/information on ingredients;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗04What does SDS Section 4, First-Aid Measures, cover?
The initial care that untrained responders should give someone exposed to the chemical, with first-aid instructions by route of exposure (inhalation, skin and eye contact, ingestion).
VERIFIED AGAINST THE SOURCE
“(iv) Section 4, First-aid measures;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗05What does SDS Section 5, Fire-Fighting Measures, cover?
Recommendations for fighting a fire caused by the chemical, including suitable extinguishing equipment and equipment that is not appropriate.
VERIFIED AGAINST THE SOURCE
“(v) Section 5, Fire-fighting measures;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗06What does SDS Section 6, Accidental Release Measures, cover?
The right response to spills, leaks or releases, including containment and cleanup practices to prevent or minimize exposure to people, properties or the environment.
VERIFIED AGAINST THE SOURCE
“(vi) Section 6, Accidental release measures;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗07What does SDS Section 7, Handling and Storage, cover?
Safe handling practices and conditions for safe storage, including handling incompatible chemicals and general hygiene practices such as no eating, drinking or smoking in work areas.
VERIFIED AGAINST THE SOURCE
“(vii) Section 7, Handling and storage;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗08What does SDS Section 8, Exposure Controls/Personal Protection, cover?
Exposure limits (such as OSHA PELs and ACGIH TLVs), engineering controls, and personal protective measures that can be used to minimize worker exposure.
VERIFIED AGAINST THE SOURCE
“(viii) Section 8, Exposure controls/personal protection;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗09What does SDS Section 9, Physical and Chemical Properties, cover?
The physical and chemical properties of the substance or mixture, such as appearance, odor, pH, melting point, boiling point, flash point, evaporation rate and vapor pressure.
VERIFIED AGAINST THE SOURCE
“(ix) Section 9, Physical and chemical properties;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗10What does SDS Section 10, Stability and Reactivity, cover?
The reactivity hazards of the chemical and its chemical stability, including possible hazardous reactions, conditions to avoid, and classes of incompatible materials.
VERIFIED AGAINST THE SOURCE
“(x) Section 10, Stability and reactivity;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗11What does SDS Section 11, Toxicological Information, cover?
Toxicological and health effects information (or a statement that such data are not available), including the likely routes of exposure, symptoms, delayed and immediate effects, numerical measures of toxicity, and carcinogen listings.
VERIFIED AGAINST THE SOURCE
“(xi) Section 11, Toxicological information.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗12Which of the following is true about Section 12, Ecological Information, of the Safety Data Sheet?
It covers the environmental impact if the chemical is released, such as whether it persists and degrades and its potential to move from soil to groundwater, and it is non-mandatory: OSHA does not enforce Sections 12 through 15.
VERIFIED AGAINST THE SOURCE
“OSHA will not be enforcing information requirements in sections 12 through 15, as these areas are not under its jurisdiction.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗13What does SDS Section 13, Disposal Considerations, cover?
Proper disposal practices, recycling or reclamation of the chemical or its container, and safe handling practices. Like Sections 12, 14 and 15, it is not enforced by OSHA.
VERIFIED AGAINST THE SOURCE
“(xiii) Section 13, Disposal considerations;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗14You should refer to the most updated SDS for the chemicals you are working with. Which SDS section tells you the last known revision date?
Section 16, Other Information, which includes the date the SDS was prepared or last revised.
VERIFIED AGAINST THE SOURCE
“(xvi) Section 16, Other information, including date of preparation or last revision.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗15How many sections must the proper SDS have?
16. Safety data sheets must use the standard 16-section format, with the section numbers and headings in the order listed in 29 CFR 1910.1200(g)(2).
VERIFIED AGAINST THE SOURCE
“includes at least the following section numbers and headings, and associated information under each heading, in the order listed”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗16Section one of a safety data sheet indicates what?
Identification: the product identifier, the supplier name, address and phone number, an emergency phone number, and the recommended use and restrictions. Hazardous ingredients are in Section 3, Composition/Information on Ingredients.
VERIFIED AGAINST THE SOURCE
“This section identifies the chemical on the SDS as well as the recommended uses. It also provides the essential contact information of the supplier.”
— OSHA Brief 3514, Hazard Communication Standard: Safety Data Sheets (osha.gov) ↗17Which statement about the information on a safety data sheet (SDS) is true?
The section numbers and headings are always presented in the same order, Sections 1 through 16 as listed in 1910.1200(g)(2); within a section, the preparer may present the required information in any order.
VERIFIED AGAINST THE SOURCE
“While each section of the SDS must contain all of the specified information, preparers of safety data sheets are not required to present the information in any particular order within each section”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗18Sections ________ of the Safety Data Sheet (SDS) contain general information about the chemical, identification, hazards, composition, safe handling practices, and emergency control measures.
Sections 1 through 8.
VERIFIED AGAINST THE SOURCE
“Sections 1 through 8 contain general information about the chemical, identification, hazards, composition, safe handling practices, and emergency control measures”
— OSHA Brief 3514, Hazard Communication Standard: Safety Data Sheets (osha.gov) ↗19If a chemical manufacturer, importer, or employer becomes aware of any significant information regarding the hazards of the chemical or ways to protect against hazards, this new information must be added to the SDS within how many months?
3 months.
VERIFIED AGAINST THE SOURCE
“becomes newly aware of any significant information regarding the hazards of a chemical, or ways to protect against the hazards, this new information shall be added to the safety data sheet within three months”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗20True or false: with this update to the Standard, we changed from Safety Data Sheet (SDS) to Material Safety Data Sheets.
False. The change went the other way: Material Safety Data Sheets (MSDSs) became Safety Data Sheets (SDSs) in the standard 16-section format.
VERIFIED AGAINST THE SOURCE
“requires that the chemical manufacturer, distributor, or importer provide Safety Data Sheets (SDSs) (formerly MSDSs or Material Safety Data Sheets) for each hazardous chemical to downstream users”
— OSHA Brief 3514, Hazard Communication Standard: Safety Data Sheets (osha.gov) ↗21True or false: First Aid Measures are not required on an SDS.
False. Section 4, First-aid measures, is one of Sections 1 to 11 and 16, which every SDS must include; only Sections 12 to 15 are not mandatory.
VERIFIED AGAINST THE SOURCE
“(iv) Section 4, First-aid measures;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗22Potential cancer causing agents within a material are addressed in which section of the SDS sheet: Ecological Information, Stability and Reactivity, Toxicological Information, or Composition/Information on Ingredients?
Toxicological Information (Section 11), which states whether the chemical is listed as a carcinogen or potential carcinogen.
VERIFIED AGAINST THE SOURCE
“(xi) Section 11, Toxicological information.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗23You are preparing to work with Chemical A. You open the appropriate storage cabinet, and notice Chemical B, as well as Chemical A. Based on your knowledge of both chemicals you suspect that they should not be stored together. Which section of the SDS should you consult, in order to confirm your suspicion?
Section 10, Stability and Reactivity, which lists the classes of incompatible materials. Section 7, Handling and Storage, also notes storage incompatibilities.
VERIFIED AGAINST THE SOURCE
“Recommendations on the conditions for safe storage, including any incompatibilities.”
— OSHA Brief 3514, Hazard Communication Standard: Safety Data Sheets (osha.gov) ↗24Under the Hazard Communication Standard, employers are responsible for which of the following?
Maintaining copies of the safety data sheet for each hazardous chemical in the workplace and keeping them readily accessible to employees. Manufacturers and importers, not using employers, develop the SDSs.
VERIFIED AGAINST THE SOURCE
“Chemical manufacturers and importers shall obtain or develop a safety data sheet for each hazardous chemical they produce or import.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗25Which of the following statements are true about Safety Data Sheets in your workplace?
Your employer must have an SDS in the workplace for every hazardous chemical you use, and the SDSs must be readily accessible to you in your work area during each work shift.
VERIFIED AGAINST THE SOURCE
“shall ensure that they are readily accessible during each work shift to employees when they are in their work area(s)”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗26You are working to bring a healthcare facility into compliance with the SDS-related provisions of OSHA's HCS. The facility has compiled a list of all hazardous chemicals to which workers in the facility might be exposed, and an SDS corresponding to each chemical on the list has been obtained and filed. For full compliance, you advise that this facility also must:
Ensure the SDSs are readily accessible to workers in their work areas during each work shift.
VERIFIED AGAINST THE SOURCE
“The employer shall maintain in the workplace copies of the required safety data sheets for each hazardous chemical, and shall ensure that they are readily accessible during each work shift to employees when they are in their work area(s).”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗27For safety data sheets, "readily accessible" means which: easy to get at except during a power failure, must be on paper, immediate access regardless of the situation, or orally over the phone?
Immediate access regardless of the situation. Electronic copies are allowed only if they create no barriers to immediate employee access, so paper is not required.
VERIFIED AGAINST THE SOURCE
“Electronic access and other alternatives to maintaining paper copies of the safety data sheets are permitted as long as no barriers to immediate employee access in each workplace are created by such options.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗28Which of the following is the primary source for detailed chemical hazard information, a chemical's fact sheet including detailed information about a chemical's hazards and how to protect workers from those hazards?
The Safety Data Sheet (SDS).
VERIFIED AGAINST THE SOURCE
“The SDS includes information such as the properties of each chemical; the physical, health, and environmental health hazards; protective measures; and safety precautions for handling, storing, and transporting the chemical.”
— OSHA Brief 3514, Hazard Communication Standard: Safety Data Sheets (osha.gov) ↗29Which of the following information is contained on an SDS?
The chemical name and supplier contact information with recommended uses and restrictions, the hazard classification and ingredients, first-aid and fire-fighting measures, spill and release response, handling and storage, exposure controls and personal protection, and physical, chemical, stability and toxicological information.
VERIFIED AGAINST THE SOURCE
“(ii) Section 2, Hazard(s) identification;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗30If a product is an oxidizing agent, which pictogram will appear on the label to warn about the oxidizer class of chemical hazards?
The Flame Over Circle pictogram, which is used for oxidizers.
VERIFIED AGAINST THE SOURCE
“Pictogram: Flame Over Circle • Oxidizers”
— OSHA QuickCard 3491-08R 2024, Hazard Communication Standard Pictogram (osha.gov) ↗31A product labeled with the Skull and Crossbones pictogram indicates what hazard?
Acute toxicity at the fatal or toxic level, the most severe acute toxicity hazard.
VERIFIED AGAINST THE SOURCE
“Pictogram: Skull and Crossbones • Acute Toxicity (fatal or toxic)”
— OSHA QuickCard 3491-08R 2024, Hazard Communication Standard Pictogram (osha.gov) ↗32You are preparing a chemical hazard label for a new product. You know that the product is flammable, carcinogenic, and may irritate the respiratory tract. What pictogram(s) should be on the label?
Flame (flammables), Health Hazard (carcinogen) and Exclamation Mark (respiratory tract irritant).
VERIFIED AGAINST THE SOURCE
“Narcotic Effects • Respiratory Tract Irritant”
— OSHA QuickCard 3491-08R 2024, Hazard Communication Standard Pictogram (osha.gov) ↗33Pictograms used on labels must be set in the shape of which: a square with a red outline, black symbol, and white background; a square with a blue outline, black symbol, and white background; a flame with a red outline; or a hexagon with a red outline?
A square with a red outline, black symbol and white background: the standard calls for a square set at a point, with a black hazard symbol on a white background and a red frame wide enough to be clearly visible.
VERIFIED AGAINST THE SOURCE
“C.2.3.1 Pictograms shall be in the shape of a square set at a point and shall include a black hazard symbol on a white background with a red frame sufficiently wide to be clearly visible.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗34True or false: if a chemical has multiple hazards, only the pictogram of the most damaging hazard will be displayed on the label.
False. The label must carry the pictogram(s) for each hazard class and category of the chemical; only a duplicate of the same pictogram is left off.
VERIFIED AGAINST THE SOURCE
“If multiple hazards require the use of the same pictogram, it may not appear a second time on the label.”
— OSHA QuickCard 3491-08R 2024, Hazard Communication Standard Pictogram (osha.gov) ↗35What is a GHS pictogram and what is its purpose?
A symbol plus other graphic elements, such as a border, background pattern or color, that conveys specific information about the hazards of a chemical, so workers can quickly see the type of hazard.
VERIFIED AGAINST THE SOURCE
“Pictogram means a composition that may include a symbol plus other graphic elements, such as a border, background pattern, or color, that is intended to convey specific information about the hazards of a chemical.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗36All containers of hazardous chemicals leaving the workplace must be labeled, tagged, or marked with all of the following information EXCEPT:
The name, address and telephone number of the employees using the chemical at the worksite. The label names the chemical manufacturer, importer or other responsible party, with a U.S. address and U.S. phone number.
VERIFIED AGAINST THE SOURCE
“(vi) Name, U.S. address, and U.S. telephone number of the chemical manufacturer, importer, or other responsible party.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗37What information must be included on a hazardous chemical label?
The product identifier, signal word, hazard statement(s), pictogram(s), precautionary statement(s), and the name, U.S. address and U.S. telephone number of the manufacturer, importer or other responsible party.
VERIFIED AGAINST THE SOURCE
“(i) Product identifier; (ii) Signal word; (iii) Hazard statement(s); (iv) Pictogram(s); (v) Precautionary statement(s); (vi) Name, U.S. address, and U.S. telephone number of the chemical manufacturer, importer, or other responsible party.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗38Which of the following is not required on labels: the ingredients, signal words, pictogram, or precautionary statements?
The ingredients. Label elements are the pictogram, hazard statement, signal word and precautionary statement, plus the product identifier and supplier information; ingredients go in SDS Section 3.
VERIFIED AGAINST THE SOURCE
“Label elements means the specified pictogram, hazard statement, signal word and precautionary statement for each hazard class and category.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗39Labels must now include new information including which: product identifier, histogram, MSDS sheets, or email address?
Product identifier, the name or number used for the hazardous chemical on the label and in the SDS.
VERIFIED AGAINST THE SOURCE
“(i) Product identifier; (ii) Signal word; (iii) Hazard statement(s); (iv) Pictogram(s);”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗40Which of the following represents the basic warning found on hazard warning labels: Danger (highly toxic), Warning (moderately toxic), Caution (slightly toxic), or either Danger or Warning?
Either Danger or Warning. Those are the only two signal words in the standard: Danger for more severe hazards and Warning for less severe ones. Caution is not an HCS signal word.
VERIFIED AGAINST THE SOURCE
“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.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗41What is the purpose of a GHS signal word?
To indicate the relative level of severity of the hazard and alert the reader to a potential hazard on the label.
VERIFIED AGAINST THE SOURCE
“Signal word means a word used to indicate the relative level of severity of hazard and alert the reader to a potential hazard on the label.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗42What is the meaning of the following GHS signal words: Danger and Warning?
Danger is used for the more severe hazards; Warning is used for the less severe hazards. If Danger appears on a label, Warning must not also appear.
VERIFIED AGAINST THE SOURCE
“C.2.1.1 If the signal word “Danger” is included, the signal word “Warning” shall not appear;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗43What is the difference between a GHS hazard statement and a GHS precautionary statement?
A hazard statement describes the nature of the hazard(s) of a chemical, including the degree of hazard. A precautionary statement describes recommended measures to minimize or prevent adverse effects from exposure, or from improper storage or handling.
VERIFIED AGAINST THE SOURCE
“Precautionary statement means a phrase that describes recommended measures that should be taken to minimize or prevent adverse effects resulting from exposure to a hazardous chemical, or improper storage or handling.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗44Who is responsible for the proper labeling of hazardous chemicals after they reach the workplace or jobsite?
Employers. Each container of hazardous chemicals in the workplace must be labeled, tagged or marked.
VERIFIED AGAINST THE SOURCE
“the employer shall ensure that each container of hazardous chemicals in the workplace is labeled, tagged or marked with either”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗45Which of the following is true about the labeling of chemicals?
Stationary process containers can be identified by signs, placards, process sheets, batch tickets or operating procedures instead of individual labels, if the method shows which containers it covers and conveys the required label information.
VERIFIED AGAINST THE SOURCE
“The employer may use signs, placards, process sheets, batch tickets, operating procedures, or other such written materials in lieu of affixing labels to individual stationary process containers”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗46Hazard Communication covers both ______ and health hazards.
Physical hazards. A hazardous chemical is one classified as a physical hazard or a health hazard, a simple asphyxiant, combustible dust, or hazard not otherwise classified.
VERIFIED AGAINST THE SOURCE
“Hazardous chemical means any chemical which is classified as a physical hazard or a health hazard, a simple asphyxiant, combustible dust, or hazard not otherwise classified.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗47Chemicals in the __________ class are liquids which, even in small quantities, are liable to ignite within 5 minutes after coming into contact with air.
Pyrophoric liquid.
VERIFIED AGAINST THE SOURCE
“Pyrophoric liquid means a liquid which, even in small quantities, is liable to ignite within five minutes after coming into contact with air.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗48OSHA's Hazard Communication Standard (HazCom) is designed to ensure that information about ________ and associated protective measures is disseminated.
Hazardous chemicals: their hazards are classified and the information is passed to employers and employees through labels, safety data sheets and training.
VERIFIED AGAINST THE SOURCE
“In order to ensure chemical safety in the workplace, information about the identities and hazards of the chemicals must be available and understandable to workers.”
— OSHA Hazard Communication page (osha.gov) ↗49Chemical manufacturers and importers must convey the hazard information they learn from their evaluations to downstream employers by means of labels on containers and:
Safety Data Sheets (SDSs).
VERIFIED AGAINST THE SOURCE
“Chemical manufacturers and importers are required to evaluate the hazards of the chemicals they produce or import, and prepare labels and safety data sheets to convey the hazard information to their downstream customers”
— OSHA Hazard Communication page (osha.gov) ↗50Which of the following best describes corrosives: a chemical that causes a harmless, warm sensation upon contact; a chemical that glows in the dark; a chemical that registers -14 on the pH scale; or a chemical that causes visible destruction of, or irreversible damage to, living tissue at the point of contact?
A chemical that causes visible destruction of, or irreversible damage to, living tissue at the point of contact.
VERIFIED AGAINST THE SOURCE
“A.2.1.1 Skin corrosion refers to the production of irreversible damage to the skin; namely, visible necrosis through the epidermis and into the dermis occurring after initial exposure to a substance or mixture.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗51Examples of hazardous chemicals categories with their associated physical hazards include all of the following EXCEPT: compressed gas, explosives, spent shell casings, or water-reactive materials.
Spent shell casings. Gases under pressure (including compressed gases), explosives, and chemicals that emit flammable gas in contact with water are physical hazard classes.
VERIFIED AGAINST THE SOURCE
“They comprise compressed gases, liquefied gases, dissolved gases and refrigerated liquefied gases.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗52What is the purpose of the Hazard Communication Standard?
To ensure that the hazards of all chemicals produced or imported are classified and that the hazard information is transmitted to employers and employees through labels, safety data sheets and employee training.
VERIFIED AGAINST THE SOURCE
“The transmittal of information is to be accomplished by means of comprehensive hazard communication programs, which are to include container labeling and other forms of warning, safety data sheets and employee training.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗53What is the difference between a health hazard and a physical hazard?
A health hazard harms the body: acute toxicity, skin corrosion or irritation, serious eye damage or irritation, respiratory or skin sensitization, germ cell mutagenicity, carcinogenicity, reproductive toxicity, target organ toxicity or aspiration. A physical hazard is a property such as being explosive, flammable, an oxidizer, pyrophoric, self-reactive, corrosive to metal or a gas under pressure.
VERIFIED AGAINST THE SOURCE
“Physical hazard means a chemical that is classified as posing one of the following hazardous effects: explosive, flammable (gases, liquids, or solids); aerosols; chemical under pressure; oxidizer (gases, liquids, or solids); self-reactive;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗54The Hazard Communication Standard was modified to adopt the Globally Harmonized System of Classification and Labeling of Chemicals (GHS). What is the purpose of the GHS?
To provide a standardized, common and coherent approach to classifying chemicals and communicating hazard information on labels and safety data sheets.
VERIFIED AGAINST THE SOURCE
“The system provides a common and coherent approach to classifying chemicals and communicating hazard information.”
— OSHA Hazard Communication Standard final rule page (osha.gov) ↗55Which of the following describe OSHA's Hazard Communication Standard?
It was created to reduce the risk of working with hazardous chemicals by standardizing how their hazards are communicated. It was revised in 2012 to align with the GHS (third revision) and updated again in 2024 to align primarily with GHS Revision 7.
VERIFIED AGAINST THE SOURCE
“The final rule was published on May 20, 2024 and takes effect on July 19, 2024.”
— OSHA Hazard Communication Standard final rule page (osha.gov) ↗56According to the HazCom Standard, the employer's written hazard communication program must include which of the following?
How the label, SDS and training requirements will be met; a list of the hazardous chemicals known to be present; and the methods used to tell employees about the hazards of non-routine tasks and of chemicals in unlabeled pipes in their work areas.
VERIFIED AGAINST THE SOURCE
“(ii) The methods the employer will use to inform employees of the hazards of non-routine tasks (for example, the cleaning of reactor vessels), and the hazards associated with chemicals contained in unlabeled pipes in their work areas.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗57Which of the following should your employer include in your training about hazardous chemicals at the workplace?
The requirements of the HazCom standard, the operations in your work area where hazardous chemicals are present, the measures you can take to protect yourself, and the location and availability of the written program, the chemical list and the SDSs.
VERIFIED AGAINST THE SOURCE
“(iii) The measures employees can take to protect themselves from these hazards, including specific procedures the employer has implemented to protect employees from exposure to hazardous chemicals, such as appropriate work practices, emergency procedures, and personal protective equipment to be used; and,”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗58You are a new employee and have questions about your company's Hazard Communications Program. Which of the following identifies the proper access to the Hazard Communication Program at your workplace?
The written program must be made available to you on request, and your training must tell you its location and availability.
VERIFIED AGAINST THE SOURCE
“(iii) The location and availability of the written hazard communication program, including the required list(s) of hazardous chemicals, and safety data sheets required by this section.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗59When do employees receive training on hazardous chemicals in the workplace?
At the time of their initial assignment, and whenever a new chemical hazard they have not previously been trained about is introduced into their work area.
VERIFIED AGAINST THE SOURCE
“Employers shall provide employees with effective information and training on hazardous chemicals in their work area at the time of their initial assignment, and whenever a new chemical hazard the employees have not previously been trained about is introduced into their work area.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗60Which statement about hazard communication training requirements is true?
Training may be designed to cover categories of hazards, such as flammability or carcinogenicity, instead of each specific chemical, which helps where many chemicals are used.
VERIFIED AGAINST THE SOURCE
“Information and training may be designed to cover categories of hazards (e.g., flammability, carcinogenicity) or specific chemicals.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗61Must an employer label a portable container into which a worker transfers a hazardous chemical from a labeled container for that worker's own immediate use?
No. Portable containers filled from labeled containers and intended only for the immediate use of the employee who performs the transfer are exempt.
VERIFIED AGAINST THE SOURCE
“The employer is not required to label portable containers into which hazardous chemicals are transferred from labeled containers, and which are intended only for the immediate use of the employee who performs the transfer.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗62May an employer remove or deface the label on an incoming container of a hazardous chemical?
Only if the container is immediately marked with the required information.
VERIFIED AGAINST THE SOURCE
“The employer shall not remove or deface existing labels on incoming containers of hazardous chemicals, unless the container is immediately marked with the required information.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗63What language must workplace labels and other forms of warning be in?
English, legible and prominently displayed. Employers with employees who speak other languages may add the information in those languages.
VERIFIED AGAINST THE SOURCE
“The employer shall ensure that workplace labels or other forms of warning are legible, in English, and prominently displayed on the container, or readily available in the work area throughout each work shift.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗64How soon must a chemical manufacturer, importer, distributor or employer revise a label after becoming newly aware of significant information about the chemical's hazards?
Within six months of becoming aware of the new information.
VERIFIED AGAINST THE SOURCE
“shall revise the labels for the chemical within six months of becoming aware of the new information”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗65If a label carries the signal word Danger, may it also carry the signal word Warning?
No. When Danger is included, Warning shall not appear.
VERIFIED AGAINST THE SOURCE
“C.2.1.1 If the signal word “Danger” is included, the signal word “Warning” shall not appear;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗66When the skull and crossbones pictogram is on a label, may the exclamation mark also appear for acute toxicity?
No. If the skull and crossbones is included, the exclamation mark shall not appear where it is used for acute toxicity.
VERIFIED AGAINST THE SOURCE
“C.2.1.2 If the skull and crossbones pictogram is included, the exclamation mark pictogram shall not appear where it is used for acute toxicity;”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗67Two hazards of a chemical call for the same pictogram. How many times does that pictogram appear on the label?
Once. A pictogram may only appear once on a label.
VERIFIED AGAINST THE SOURCE
“C.2.3.4 Pictograms may only appear once on a label. If multiple hazards require the use of the same pictogram, it may not appear a second time on the label.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗68What are the four types of precautionary statements on a HazCom label?
Prevention, response, storage and disposal.
VERIFIED AGAINST THE SOURCE
“There are four types of precautionary statements presented, “prevention,” “response,” “storage,” and “disposal.””
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗69Where employees travel between workplaces during a shift, where may the safety data sheets be kept?
At the primary workplace facility, as long as employees can immediately obtain the required information in an emergency.
VERIFIED AGAINST THE SOURCE
“Where employees must travel between workplaces during a workshift, i.e., their work is carried out at more than one geographical location, the safety data sheets may be kept at the primary workplace facility.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗70Under HazCom, what is combustible dust?
Finely divided solid particulates of a substance or mixture that pose a flash-fire or explosion hazard when dispersed in air or other oxidizing media.
VERIFIED AGAINST THE SOURCE
“Combustible dust means finely divided solid particulates of a substance or mixture that pose a flash-fire hazard or explosion hazard when dispersed in air or other oxidizing media.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗71Under HazCom, what is a simple asphyxiant?
A substance or mixture that displaces oxygen in the ambient atmosphere and can cause oxygen deprivation, leading to unconsciousness and death.
VERIFIED AGAINST THE SOURCE
“Simple asphyxiant means 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.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗72What does "hazard not otherwise classified" (HNOC) mean under HazCom?
An adverse physical or health effect identified through scientific evidence during classification that does not meet the criteria for the hazard classes in the standard.
VERIFIED AGAINST THE SOURCE
“Hazard not otherwise classified (HNOC) means an adverse physical or health effect identified through evaluation of scientific evidence during the classification process that does not meet the specified criteria for the physical and health hazard classes addressed in this section.”
— 29 CFR 1910.1200, Hazard communication (eCFR, current as of 2026-10-29) ↗73When was the most recent update to the Hazard Communication Standard published, and when did it take effect?
Published May 20, 2024; effective July 19, 2024. It aligns the standard primarily with GHS Revision 7.
VERIFIED AGAINST THE SOURCE
“The final rule was published on May 20, 2024 and takes effect on July 19, 2024.”
— OSHA Hazard Communication Standard final rule page (osha.gov) ↗Know questions we're missing?
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