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OSHA Hazard Communication Letters of Interpretation

Hazard Communication Standard – SDS responsible party and hazards not otherwise classified

Issued
Record type
Interpretation
Historical standard
HCS 2012 (historical)
Current standard
HCS 2024, as amended

ILPI assessment: Generally consistent; use current HCS details for hybrid documents

Importing a chemical solely for a business’s own use does not remove importer responsibilities. Current label contact requirements and SDS Section 1 specify U.S. responsible-party information; an SDS contractor does not transfer the manufacturer’s or importer’s ultimate compliance responsibility.

Hybrid U.S./Canadian documents must meet current U.S. requirements without conflicting supplemental information. The optional HNOC exclamation mark is now addressed in C.2.3.3 and C.2.3.4; HNOCs moved to SDS Section 2(d).

Apply current hazard classes and label elements rather than treating the old GHS comparison or pyrophoric-gas statements as a complete current specification. See the November 29, 2017 GHS letter and U.S. contact-information letter.

For present Canadian requirements, consult Health Canada’s current WHMIS supplier guidance; the historical comparison below is not a guarantee that the two systems are identical today.

Last reviewed: .

Related interpretations
About this ILPI assessment

This comparison with current requirements is not a finding that OSHA has formally withdrawn this letter. This assessment reflects editorial judgment informed by human review and AI assistance. It is an opinion, may contain errors or omissions, and is not an official OSHA determination. For guidance on how OSHA requirements apply to your circumstances, contact your local OSHA office.

OSHA's notice about interpretation letters

The following notice is published on OSHA's interpretation pages; it is general guidance, not a letter-specific withdrawal notice.

OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.

Source: OSHA's original letter page.

September 18, 2018

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Messrs. Nick Stone and Kirk Nelson
Authoring Services Department
MSDSonline - A Velocity EHS Solution
222 Merchandise Mart Plaza, Suite 1750
Chicago, Illinois 60654

Dear Messrs. Stone and Nelson:

Thank you for your letter to the Occupational Safety and Health Administration 's (OSHA) Directorate of Enforcement Programs. Your letter requested clarification on the required contact information on safety data sheets (SDSs) for imported products. You also asked if importers may create a hybrid SDS and label, meeting both OSHA 's revised Hazard Communication standard [ILPI: Original HCS 2012 context · Current HCS] (HCS 2012) at 29 CFR 1910.1200 and Canada 's revised Hazardous Products Regulations (HPR) with its modified Workplace Hazardous Materials Information System (WHMIS 2015). We apologize for the delay in our response. This letter constitutes OSHA 's interpretation only of the requirements discussed and may not be applicable to issues not delineated within your original correspondence. Your paraphrased questions and our responses are below.

Question 1: Is it permissible to list a foreign address in Section 1 of the SDS [ILPI: Original HCS 2012 context · Current HCS] as the responsible party or must a U.S. address and phone number always be listed on the SDS to be considered compliant? Is it ever permissible to use a foreign phone number (non-emergency) for the responsible party? Can the emergency phone number in Section 1 of the SDS be a foreign number, as long as the person answering it can speak English and is competent?

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Response: No. Section 1 of the SDS [ILPI: Original HCS 2012 context · Current HCS] must include the name, address, and telephone number of the manufacturer, importer, or other responsible party. Section 1 must also include an emergency phone number. The address must be in the United States, and the phone number must be a domestic number. If a manufacturer, importer, distributor, or employer chooses to add a foreign address (non-U.S. based) to an SDS, it may be listed in Section 1 if the responsible party believes they may be able to provide additional supplemental information and is done in a fashion that does not cause confusion. To avoid confusion, the supplemental information may, instead, be provided in Section 16 of the SDS. (See also, OSHA Instruction CPL 02-02-079 [ILPI: Original 2015 HCS 2012 directive · Current HCS inspection guidance], Inspection Procedures for the Hazard Communication Standard (HCS 2012 [ILPI: Original HCS 2012 context · Current HCS]), July 9, 2015, specifically, Section X.G.1.o [ILPI: Original 2015 HCS 2012 directive · Current HCS inspection guidance]).

Question 2: If a chemical is imported from a foreign supplier by a U.S. company for use in its own workplace only (the material/product will not be leaving the facility it was imported into, and will be fully consumed on site), is the U.S. importer now considered the responsible party?

Response: Yes. The first U.S. company (importer/distributor) to receive the shipment from the foreign supplier is now the responsible party for that chemical.

Question 3: If the answer to question 2 above is yes, then is the U.S. importer now liable for all HCS 2012 [ILPI: Original HCS 2012 context · Current HCS] requirements for that chemical, including classification and developing an SDS as soon as it is in their possession?

Response: Yes. The importer assumes the responsibility to ensure it is compliant with OSHA 's HCS [ILPI: Original HCS 2012 context · Current HCS], including classifying the chemical and developing or obtaining an SDS. If the chemical will not be leaving the facility, the U.S. importer may follow the workplace labeling requirements at 29 CFR 1910.1200(f)(6) [ILPI: Original HCS 2012 context · Current HCS].

Question 4: If the U.S. importer does not receive an HCS [ILPI: Original HCS 2012 context · Current HCS]-compliant SDS with the foreign shipment, is it obligated to author one? If so, is it allowed to use the foreign manufacturer 's address in Section 1 of the SDS [ILPI: Original HCS 2012 context · Current HCS] if its own address is present?

Response: The importer is the responsible party, and if it does not receive an SDS from the foreign supplier meeting the requirements of HCS 2012 [ILPI: Original HCS 2012 context · Current HCS], then it is required to create an HCS-compliant SDS. The SDS must have the importer 's U.S. address, but may contain a foreign manufacturer 's address in Section 1 [ILPI: Original HCS 2012 context · Current HCS], as well. To avoid confusion, the foreign manufacturer 's address may, instead, be provided in Section 16 of the SDS. (See also, OSHA Instruction CPL 02-02-079 [ILPI: Original 2015 HCS 2012 directive · Current HCS inspection guidance], Inspection Procedures for the Hazard Communication Standard (HCS 2012), July 9, 2015, specifically, Section X.G.1.o [ILPI: Original 2015 HCS 2012 directive · Current HCS inspection guidance]).

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Question 5: If the importer received an HCS 2012 [ILPI: Original HCS 2012 context · Current HCS]-compliant SDS from its overseas distributor, is it allowed to use that SDS in its own workplace?

Response: Yes. Please see our response to question 3, above. 

Question 6: If the foreign distributor provides an SDS with its own (foreign) address in Section 1 [ILPI: Original HCS 2012 context · Current HCS], is the U.S. importer allowed to use that address as the responsible party, or is it required to put its own company name/address on the SDS as the responsible party and take full responsibility for the content of the SDS?

Response: When chemicals are imported into the United States, the person (meaning one or more individuals, partnerships, associations, corporations, business trusts, legal representatives, or any organized group of persons) who imported the product automatically becomes the responsible party. (See also, OSHA Instruction CPL 02-02-079 [ILPI: Original 2015 HCS 2012 directive · Current HCS inspection guidance], Inspection Procedures for the Hazard Communication Standard (HCS 2012 [ILPI: Original HCS 2012 context · Current HCS]), July 9, 2015, specifically, Section X.C.15.a [ILPI: Original 2015 HCS 2012 directive · Current HCS inspection guidance]). Also, please see our responses to questions 1, 2, and 3, above. 

Question 7: Health Canada's WHMIS 2015 contains a provision that does not require a Canadian importer to have its own Canadian address on a WHMIS 2015-compliant SDS, as long as the chemical is being fully consumed on site. Is the U.S. looking to adopt something similar?

Response: Although Health Canada 's WHMIS 2015 regulation does not require an importer to include its address on its SDS for chemicals to be used on site, OSHA 's HCS 2012 [ILPI: Original HCS 2012 context · Current HCS] requires that all SDSs must include a U.S. address in Section 1 of the SDS [ILPI: Original HCS 2012 context · Current HCS]. OSHA does not currently plan to change this requirement. 

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Question 8: Please clarify what constitutes “a company contracted to provide more information,” as referenced in OSHA CPL 02-02-079 Section X.C.19 [ILPI: Original 2015 HCS 2012 directive · Current HCS inspection guidance], which states: “Responsible party means someone who can provide additional information on the hazardous chemical and appropriate emergency procedures, if necessary. This could be the manufacturer or importer or a company contracted to provide more information. The name and address of the responsible party MUST be the same on the SDS and the label.”

Response: A contracted company that provides additional information for a hazardous chemical may be an SDS author or contracted preparer, such as an online SDS service. In this arrangement, a manufacturer or importer may agree to list the contracted company on its chemical label and SDS as the party to be contacted to provide additional or emergency information. However, the manufacturer or importer remains as the responsible party and, as such, maintains the ultimate responsibility for compliance with OSHA 's HCS [ILPI: Original HCS 2012 context · Current HCS].

Question 9: Is this contracted company allowed to claim full responsibility for the SDS and its contents, and be the responsible party in Section 1 of the SDS [ILPI: Original HCS 2012 context · Current HCS]?

Response: No. Please see our response to question 8, above.

Question 10: Does the responsible party need to be based in the U.S. (address/phone number)?

Response: Yes. See our responses to questions 1, 2, and 6, above.

Question 11: Does the HCS [ILPI: Original HCS 2012 context · Current HCS] require the emergency number on the SDS to be U.S. based, or is the requirement just to be able to provide information in case of an emergency?

Response: Yes. The emergency telephone number must be U.S. based.

Question 12: Is it acceptable to have a “hybrid” SDS and/or “hybrid” label that contains both required elements according to OSHA 's HCS [ILPI: Original HCS 2012 context · Current HCS] and Health Canada?

Response: Yes. “Hybrid” labels and SDSs must be compliant with all elements of OSHA 's HCS [ILPI: Original HCS 2012 context · Current HCS], and any additional supplemental information (e.g., foreign country information) that is included must not contradict the required information of OSHA 's HCS. 

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Question 13: Is it acceptable if the hazard and precautionary statements in Canada 's Hazardous Products Regulations (HPR) are used on an SDS/label, in lieu of the statements in OSHA HCS (Appendix C) [ILPI: Original HCS 2012 context · Current HCS], if they offer the same amount of protection?

Response: It is the responsibility of the chemical manufacturer or importer to review available information to properly classify the hazardous chemical and determine the appropriate hazard and precautionary statements that must be included on the label and SDS. See 29 CFR 1910.1200(b)(1) [ILPI: Original HCS 2012 context · Current HCS]. As stated in OSHA CPL 02-02-079 [ILPI: Original 2015 HCS 2012 directive · Current HCS inspection guidance], a responsible party may follow the most recent version of the Globally Harmonized System of Classification and Labelling of Chemicals (GHS) as long as the hazard information does not contradict or cast doubt on HCS 2012 [ILPI: Original HCS 2012 context · Current HCS] required information. If the HPR hazard and precautionary statements differ from the HCS 2012 statements because they were adopted from a more recent revision of the GHS, the responsible party may use them, as long as the hazard information does not cast doubt on the HCS 2012 required information. For an example of minor differences that are acceptable, see OSHA's letter to Mr. Joe McCarthy, dated November 29, 2017.

However, as explained in the OSHA CPL 02-02-079 [ILPI: Original 2015 HCS 2012 directive · Current HCS inspection guidance], classification or hazard categories may be different in a more recent version of GHS than in HCS 2012 [ILPI: Original HCS 2012 context · Current HCS]. In those cases, it is not permissible to use the hazard and precautionary statements from the more recent revision of the GHS because it would contradict or cast doubt on required information. 

Question 14: Is it acceptable to include HHNOC (Health Hazards Not Otherwise Classified) classifications, PHNOC (physical hazards not otherwise classified) classifications, and label elements (pictograms, signal words, hazard statements, and precautionary statements) from the Canada HPR on a “hybrid” SDS and label that contains U.S. and Canada-required elements (as mentioned above)? If this is not acceptable by OSHA, would it be acceptable to include a disclaimer to the effect below on the “hybrid” SDS and label, while still including the labeling elements:

“This document includes HHNOC (Health Hazards Not Otherwise Classified), and/or PHNOC (Physical Hazards Not Otherwise Classified) classifications and labeling elements (pictograms, hazard statements, and precautionary statements) that only pertain to Canada's HPR. These classifications and labeling elements do not apply to U.S. OSHA 's HCS [ILPI: Original HCS 2012 context · Current HCS] (29 CFR 1910.1200).”

Response: HCS 2012 [ILPI: Original HCS 2012 context · Current HCS] requires HNOCs to be included on the SDS, see 29 CFR 1910.1200(g)(2)(ii) [ILPI: Original HCS 2012 context · Current HCS] and HNOCs may be included on the label as supplemental information. OSHA allows supplemental language to appear on the label when it does not contradict or cast doubt on the validity of the standardized hazard information. See 29 CFR 1910.1200, Appendix C, C.3.1 [ILPI: Original HCS 2012 context · Current HCS]. Additionally, OSHA permits the use of the exclamation mark pictogram to indicate the hazards of an HNOC on the label and SDS if the label also indicates that the pictogram is being used for a hazard not otherwise classified (e.g., the words “Hazard Not Otherwise Classified” or “HNOC” appear below the exclamation mark pictogram). However, the exclamation mark pictogram may only appear once on a label; if it already appears as a required pictogram for a classified hazard, it may not appear a second time as supplemental information for the HNOC.

[ILPI note: At issuance: HCS 2012. Current C.2.3.3 and C.2.3.4 expressly address the optional HNOC pictogram and one-occurrence rule. HNOCs are now in Section 2(d).]

Question 15: Is it acceptable to include in Section 3 of the SDS [ILPI: Original HCS 2012 context · Current HCS] on a “hybrid” document with U.S. and Canada-required elements, the GHS hazard classifications for each component in a product (mixture or substance) alongside required component information? In particular, is it compliant to include HHNOC and/or PHNOC classifications for each component in this part? Should a disclaimer similar to that mentioned above be included, or should component classifications in Section 3 of the SDS be omitted when an HHNOC or PHNOC component is present in the composition?

Response: Yes. The information required on an SDS under the HCS 2012 in Table D.1 of Appendix D [ILPI: Original HCS 2012 context · Current HCS] is the minimum information required. OSHA would allow additional information on the SDS as long as it does not contradict or cast doubt on the required information. 

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Question 16: The Canadian HPR and Canadian Technical Guidance on the Requirements for the Hazardous Product Act require the use of precautionary statements for the hazard classes not covered by the GHS. They define these hazard classes as combustible dusts, simple asphyxiants, pyrophoric gases, PHNOC, HHNOC, and biohazardous infectious materials. On a “hybrid” SDS and label that contains U.S. and Canada elements (minus biohazardous infectious materials) as mentioned above, would it be acceptable to add precautionary statements for the hazard classes not covered by GHS?

Although OSHA does not require precautionary statements for HNOCs, it will permit them as supplemental information as long as the statement does not contradict or cast doubt on the required information. HCS 2012 [ILPI: Original HCS 2012 context · Current HCS] requires hazard statements for combustible dust, pyrophoric gas, and simple asphyxiants, but does not require precautionary statements for those hazards. OSHA will allow precautionary statements for these hazards provided they do not contradict or cast doubt on the required information. 

Thank you for your interest in occupational safety and health. We hope you find this information helpful. OSHA's requirements are set by statute, standards, and regulations. Our letters of interpretation do not create new or additional requirements but rather explain these requirements and how they apply to particular circumstances. This letter constitutes OSHA's interpretation of the requirements discussed. From time to time, letters are affected when the Agency updates a standard, a legal decision impacts a standard, or changes in technology affect the interpretation. To assure that you are using the correct information and guidance, please consult OSHA's website at www.osha.gov. If you have any further questions, please feel free to contact the Office of Health Enforcement at (202) 693-2190.

Sincerely,


Amanda Edens, Acting Director
Directorate of Enforcement Programs


The original official public domain version of this document is available from OSHA at https://www.osha.gov/laws-regs/standardinterpretations/2018-09-18.