OSHA HazCom Requirements Explained: What Every Small Business Must Know

Quick Answer

OSHA’s Hazard Communication Standard, 29 CFR 1910.1200, applies when employees may encounter a hazardous chemical during normal use or a foreseeable emergency. Subject to exemptions, employers need a written program, chemical list, labels, an SDS for each covered chemical, and training. Sheets must be accessible every shift, regardless of company size.

Table of Contents

• Which OSHA standard covers SDS requirements?
• What counts as a hazardous chemical under OSHA HazCom?
• What are the 16 sections of a GHS-compliant SDS?
• What must a small business do beyond collecting SDS documents?
• How long must employers keep an SDS on file?
• Does OSHA HazCom apply to small businesses?
• What is the difference between an MSDS and an SDS?
• How Helios Comply Helps
• What should a small business do next?
• Frequently Asked Questions

Lists go stale, sheets disappear, and binders get locked away.

Which OSHA standard covers SDS requirements?

The governing federal rule is 29 CFR 1910.1200. Manufacturers and importers communicate classified hazards through labels and Safety Data Sheets. Employers have five duties:

• A written hazard communication program per workplace.
• A chemical list using identifiers matching the labels and sheets.
• Required information kept on incoming labels, plus workplace container labels when required.
• An SDS for each hazardous chemical, readily accessible each shift.
• Training at initial assignment and whenever a new hazard not previously covered enters the work area.

HCS 2024 aligns with GHS Revision 7 and took effect July 19, 2024. Substance deadlines are May 19, 2026, for suppliers and November 20, 2026, for employers. Mixture deadlines are November 19, 2027, and May 19, 2028, respectively. Until the applicable date, regulated parties may follow HCS 2012, HCS 2024, or both.

Spreadsheets often fail here. A central SDS library ties each identifier to one current sheet, keeping the list, label, and document aligned.

Related guidance: HazCom training requirements.

Related guidance: what ‘readily accessible’ means.

Related guidance: complete SDS compliance guide.

What counts as a hazardous chemical under OSHA HazCom?

Under HCS 2024, a hazardous chemical is any chemical classified as a physical or health hazard, simple asphyxiant, combustible dust, or hazard not otherwise classified. Pyrophoric gases stay covered as flammable gases under Appendix B.

This includes fuels, solvents, paints, adhesives, aerosols, degreasers, and concentrated cleaners. Cleaning businesses cannot assume a retail product is exempt. The consumer-product exemption requires workplace exposure duration and frequency no greater than reasonably expected consumer use.

Exemptions depend on the facts. An article must meet OSHA’s full definition, including shape, design, and release criteria. A FIFRA pesticide with EPA labeling is exempt from matching HazCom labeling but still needs an SDS if otherwise covered. Workplace labeling may apply after transfer, so this is not a blanket exemption.

When a crew buys chemicals off the shelf, someone still has to find each matching SDS. Helios Comply retrieves sheets by identifier, barcode, or photo.

Related guidance: SDS requirements by industry.

What are the 16 sections of a GHS-compliant SDS?

Every SDS follows the same order. Under Appendix D to 29 CFR 1910.1200, sections 1 through 11 and section 16 contain OSHA-mandated information. Headings 12 through 15 must appear for GHS consistency, but OSHA does not mandate their content because other agencies cover those topics.

Section	Heading	Purpose
1	Identification	Identifier, supplier contact, emergency phone.
2	Hazard identification	Classification, signal word, statements, pictograms.
3	Composition/information on ingredients	Ingredient identities and concentrations.
4	First-aid measures	Initial care by exposure route.
5	Fire-fighting measures	Extinguishing media to use and avoid.

Section	Heading	Purpose
6	Accidental release measures	Spill containment and cleanup.
7	Handling and storage	Handling, storage, incompatibilities.
8	Exposure controls/personal protection	Exposure limits and protective equipment.
9	Physical and chemical properties	State, odor, flash point, pH, density.
10	Stability and reactivity	Hazardous reactions, conditions to avoid.
11	Toxicological information	Routes, symptoms, carcinogen listings.
12	Ecological information	Environmental toxicity. Not OSHA-mandated.
13	Disposal considerations	Waste disposal. Not OSHA-mandated.
14	Transport information	Shipping classifications. Not OSHA-mandated.
15	Regulatory information	Product-specific rules. Not OSHA-mandated.
16	Other information	Preparation or revision date.

Sections 4, 6, 7, and 8 hold common daily answers.

What must a small business do beyond collecting SDS documents?

An SDS library is one part of HazCom. The written program must also cover labels, training, the list, non-routine tasks, and unlabeled pipes.

Use this setup checklist:

• List every hazardous chemical in each work area that could expose employees, including stored products.
• Match each identifier across the label, the list, and the current SDS.
• Request missing sheets from the manufacturer, importer, or distributor.
• Check workplace containers and keep required information on shipped labels.
• Put access where employees can use it every shift without asking a supervisor.
• Test access when power, internet, devices, or logins fail, and keep a backup.
• Train employees on local hazards, labels, SDS use, and protective measures.
• Review when products, processes, hazards, locations, or suppliers change.

At a multi-employer site, an employer whose chemicals may expose another employer’s workers must provide on-site access, communicate precautions, and explain the labeling system. Construction crews face this often.

Some duties are logistical. QR codes can speed access, offline mode lets workers view SDS information where signal drops, and GHS secondary-container labels support bottles filled from drums.

How long must employers keep an SDS on file?

For a chemical currently present, the employer must maintain the SDS and make it readily accessible each shift under 29 CFR 1910.1200(g). Electronic access is allowed only without barriers to immediate access. If it is integral to the program, OSHA enforcement guidance requires an adequate backup for failures and emergencies.

Superseded sheets follow a different rule. Under 29 CFR 1910.1020, certain SDS documents are employee exposure records. An employer may keep the sheet or, for at least 30 years, a record identifying the substance, where it was used, and when. A retired SDS need not remain in the active library.

Keep current-use access separate from the archive. Status views distinguish current sheets from expiring ones.

Does OSHA HazCom apply to small businesses?

Yes, when OSHA covers the employer and employees may encounter hazardous chemicals. HazCom has no general employee-count exemption.

OSHA 300 records have separate partial exemptions that do not remove HazCom duties.

State rules may differ. Most private-sector employers fall under federal OSHA or an approved State Plan, which may impose different or stricter requirements.

What is the difference between an MSDS and an SDS?

MSDS means Material Safety Data Sheet, the older format. SDS is the standardized HazCom 2012 format that suppliers generally had to provide by June 1, 2015.

MSDS	SDS
Older name, variable formats	Current name, standardized 16-section structure
Information in any order	Information under numbered headings
Pre-HazCom 2012 systems	Aligned with OSHA’s GHS-based format

Keep the most current SDS or MSDS provided for each covered chemical. An HCS 1994-compliant MSDS received before June 1, 2015, can remain acceptable if it was current at the last shipment and no newer SDS was provided. Once a newer SDS arrives, keeping only the prior copy is not compliant.

Manual sorting means opening every page. AI-assisted digitization turns uploads into searchable records.

How Helios Comply Helps

Helios Comply helps small teams manage SDS and HazCom work without a compliance department:

• Central chemical and SDS library keeping identifiers, labels, and sheets aligned.
• AI-assisted digitization of paper binders and uploaded PDFs.
• Automatic retrieval by identifier, barcode, or photo.
• QR-code, mobile, and offline access on the floor or at a job site.
• GHS secondary-container labels for containers filled on site.
• Expiry and status views separating current sheets from expiring ones.
• Multi-location controls scoping employee access by site.
• Audit-ready reports and CSV exports.
• Training assignment, completion tracking, and certificate upload.
• Hands-on setup support so the first library gets built.

Software supports administration. The employer remains responsible for the written program, inventory, labels, training, employee access, and related legal judgment.

What should a small business do next?

Start with the chemical list. Match each covered product to its label and current SDS. Then test access every shift and location, and train employees on local hazards and access steps.

Start Free Trial to build your library, or call (855) 920-5202 for hands-on setup help.

Related guidance: digitize and organize your SDS library.

Related guidance: organizing your SDS documents.

Frequently Asked Questions

Do all chemicals need an SDS?

No. HazCom applies when a hazardous chemical may expose employees during normal use or a foreseeable emergency, subject to exemptions. Judge the workplace use, not the label.

Are SDS sections 12 through 15 required?

OSHA does not mandate the content of sections 12 through 15, but their numbered headings must appear.

Can SDS documents be stored only online?

Electronic access can comply if employees have immediate, barrier-free access every shift and know how to use it. Keep an adequate backup for failures and emergencies.

Must every old SDS be kept for 30 years?

Not always. Under 29 CFR 1910.1020(d)(1)(ii)(B), the employer may keep the SDS or retain a record of the substance, where it was used, and when, for at least 30 years.

How often is HazCom training required?

At initial assignment and when a new, previously uncovered hazard enters the work area. Federal HazCom does not require blanket annual retraining.