Last updated 2026-07-09

TL;DR
OSHA's Hazard Communication Standard (29 CFR 1910.1200) requires you to train workers on chemical hazards before they start work with those chemicals and again whenever a new hazard shows up. Training must cover GHS labels, Safety Data Sheets, and your written HazCom program. There's no mandated length, but it has to be effective, documented, and in a language workers understand.
What is OSHA hazcom training and who has to do it?
OSHA's Hazard Communication Standard, codified at 29 CFR 1910.1200, covers nearly every general industry employer that keeps hazardous chemicals in the workplace. That is not a narrow slice of businesses. Cleaning solvents under the sink, propane for a forklift, aerosol lubricants in a maintenance closet: any of those means you have covered chemicals and you owe your workers hazcom training. [1]
The rule reaches past general industry. Construction falls under 29 CFR 1926.59, maritime under 29 CFR 1915.99 and related standards. Shipyard, job site, warehouse. You're in scope.
The training obligation sits on the employer. Use outside trainers, online courses, toolbox talks, or a slide deck you built yourself. OSHA cares whether workers actually understand the hazards, not whether you paid for a slick platform. You do have to document what you did, though. Verbal training with no record is close to impossible to defend when an inspector shows up.
Small businesses often assume hazcom is a chemical-plant thing. It isn't. Restaurants with commercial cleaners, auto shops with solvents and battery acid, dental offices with disinfectants and mercury amalgam all fall under the same standard. The 2012 update that aligned hazcom with the Globally Harmonized System (GHS) of Classification and Labelling of Chemicals made the labeling and SDS rules more consistent across the board, but the core training obligation has been on the books for decades. [2]
What does hazcom training have to cover?
29 CFR 1910.1200(h) spells out the required content. The regulation says training has to include "the methods and observations that may be used to detect the presence or release of a hazardous chemical," the physical and health hazards, and the measures workers can take to protect themselves, including PPE and work practices. [1]
On top of that core, training has to explain your written HazCom program specifically, where workers find Safety Data Sheets, and how to read GHS-format labels. Here's the practical breakdown.
GHS labels. Every container of a hazardous chemical needs a GHS-compliant label with a signal word (Danger or Warning), hazard statements, pictograms, precautionary statements, and supplier contact info. Workers need to know what each element means and what to do when a pictogram shows up. The nine GHS pictograms (flammable, corrosive, toxic, oxidizer, and the rest) are not intuitive. Train on them by name. [3]
Safety Data Sheets (SDS). An SDS has 16 standardized sections under the GHS-aligned format. Section 2 covers hazard identification. Section 8 covers exposure controls and PPE. Section 4 covers first aid. Workers don't have to memorize every field. They do have to know where the SDS lives, how to find the chemical they're using, and which sections matter in an emergency. For a real example of what an SDS looks like on the page, see our breakdown of the hcl safety data sheet. [4]
Your written program. 29 CFR 1910.1200(e) requires a written hazard communication program. Training has to point workers to that document: where it lives, who manages it, and how it connects to daily work.
The specific chemicals in your workplace. Generic chemical hazard training doesn't cut it by itself. OSHA has made clear through letters of interpretation that training must be specific to the chemicals workers actually encounter. [5] That's not a line-by-line lecture on every product in the building. But workers should understand the real hazards in their own area.
When does hazcom training have to happen?
The timing rule in 29 CFR 1910.1200(h) is "at the time of their initial assignment" and "whenever a new chemical hazard is introduced into their work area." [1] Two clear triggers.
Initial assignment means before the worker starts tasks that expose them to the chemical. Not at the 90-day review. Not during the next all-hands. Day one, or at the latest before the relevant work begins.
New hazard introduction is where small businesses get tripped up. You switch cleaning products. A new adhesive arrives for a project. Your shop starts stocking a different cutting fluid. Each change is a trigger for updated training. You don't have to re-run the whole program from scratch, but you do have to address the new hazard and write down that you did.
Refresher training isn't tied to a fixed schedule in the standard. OSHA has stated in letters of interpretation that refresher training is required when there's reason to believe employees don't understand the hazards. [5] Most safety pros run annual refreshers anyway. It's easy to defend on inspection, it catches turnover gaps, and it keeps the habit alive.
One timing issue worth watching: temporary and contract workers. If a staffing agency sends workers into your facility and those workers handle chemicals, you and the agency both have obligations. The host employer owns site-specific hazard training. The agency handles general hazcom training. OSHA has addressed this split in guidance. Sort it out in writing before the worker walks in.
What GHS changes did OSHA make in 2012, and do they still apply?
In 2012, OSHA revised the Hazard Communication Standard to align with the United Nations' Globally Harmonized System of Classification and Labelling of Chemicals (GHS). [2] The full compliance deadline for training workers on the new label elements and SDS format was December 1, 2013 for most employers. That deadline is long gone. If you're still using old MSDS formats or pre-GHS label language, you're out of compliance right now.
What actually changed: the old Material Safety Data Sheets became Safety Data Sheets with a standardized 16-section format. Labels picked up new required elements (signal words, pictograms, hazard and precautionary statements). Hazard classification got more consistent across countries.
OSHA has since published a further update, sometimes called HazCom 2024. The final rule came out in May 2024 with a revised definition of "hazardous chemical," new provisions for small containers, and changes to how certain hazard categories are classified. [6] Employers get a phased compliance timeline for the 2024 changes. Training obligations under the existing standard stay in force the whole way through any transition.
For day-to-day compliance, the GHS-aligned standard in place since 2012 is what you work under. Make sure your training covers the nine GHS pictograms, the two signal words (Danger and Warning), and the 16-section SDS format by name. That's exactly what an OSHA compliance officer checks. [3]
How do you structure a hazcom training program that actually holds up?
There's no OSHA-prescribed length or format. A 20-minute hands-on walkthrough with real SDSs from your own chemical inventory beats a two-hour video that nobody watched, and it's easier to defend. Build it around your actual workplace, not a generic template.
A reasonable structure for most small businesses:
1. Short explanation of why hazcom exists and what the standard requires. Keep it brief. Workers care about "what does this mean for me," not regulatory history.
2. Walk through the GHS label format using a real product from your inventory. Point to the pictogram, signal word, hazard statement, and precautionary statements on the actual container.
3. Show workers where SDSs are kept. Open one. Walk through sections 2, 4, 7, and 8 for a chemical they actually use. Let them ask questions.
4. Cover your written HazCom program: where it is, who maintains it, how to report a new chemical coming in.
5. Cover the specific hazards in their work area: flammables, corrosives, carcinogens, reproductive hazards. Don't just name them. Explain the real exposure risk and what PPE or work practice handles it.
6. Sign the training record. Trainer and worker both sign, date, and list the chemicals or categories covered.
If you need a written HazCom program to anchor this training against, our guide to hazard communication program requirements is a good starting point. And if you want to generate a site-specific written program without hiring a consultant, SafetyFolio's safety program generator walks you through it in about 15 minutes and pulls your actual chemical list into a compliant document.
For multilingual crews, OSHA requires training in a language workers understand. That's not optional and it comes up in citations regularly. If you have Spanish-speaking workers who aren't fluent in English, Spanish-language training materials are required. A translated handout stapled to English-only training does not count. [7]
How do you document hazcom training to survive an OSHA inspection?
The standard doesn't dictate a documentation format, but enforcement practice makes the target clear. When an OSHA inspector asks for hazcom training records, you want to hand over one document that shows who was trained, when, what chemicals or hazard categories were covered, and who delivered the training.
A simple sign-in sheet works if it carries that information. Many employers use a training record form with checkboxes for content areas, a line for the trainer's name and credentials, and signature lines for each worker.
Keep training records for as long as those employees work for you, at a minimum. 29 CFR 1910.1200 states no specific retention period for training records, unlike exposure and medical records under 1910.1020, which require 30-year retention. Practically, hold them for the length of employment plus a few years. In a multi-employer workplace, you may need to share records with the controlling contractor.
Common documentation mistakes that show up in citations:
- The record lists the date but never says what was covered.
- A generic "safety training" sign-in sheet doesn't separate hazcom from fire extinguisher or lockout/tagout training.
- Records exist for long-tenure employees but not for recent hires.
- No record of training when a new chemical came in mid-year.
OSHA's inspection process usually pairs a document review with employee interviews. Inspectors pull a random sample of workers and ask them: Can you show me where the SDS for this product is? What does this pictogram mean? What would you do if you spilled this? If workers can't answer, a training deficiency citation can follow even when your paperwork looks perfect. [8]
For a wider look at what an OSHA inspection covers, our guide on osha training walks through the documentation side of general training requirements.
What OSHA citations do employers get for hazcom violations?
Hazard Communication has landed near the top of OSHA's most-cited list for years running. In fiscal year 2023, it ranked second, with 2,976 citations issued. [9] Only fall protection in construction drew more.
The most common hazcom violations across industries:
| Violation type | Common citation paragraph | Typical penalty range* |
|---|---|---|
| No written HazCom program | 1910.1200(e)(1) | $1,000 - $6,000 |
| Training not provided | 1910.1200(h)(1) | $2,000 - $10,000 |
| Missing or incomplete SDSs | 1910.1200(g)(1) | $1,000 - $8,000 |
| Improper container labeling | 1910.1200(f)(5) | $1,000 - $5,000 |
| SDS not accessible to workers | 1910.1200(g)(8) | $1,000 - $4,000 |
*Penalty ranges reflect OSHA's 2024 adjusted maximum of $16,131 per serious violation and vary with size, good faith, and history. [10]
Serious violations, the most common classification for hazcom citations, carry a maximum penalty of $16,131 per violation as of 2024, adjusted every year for inflation. Willful or repeated violations can hit $161,323 per violation. Small employers (25 or fewer workers) typically get a 60% penalty reduction. Employers with 26 to 100 workers get 40%. [10]
The training-not-provided citation is hard to fight because it usually arrives backed by worker interviews. If three workers tell the inspector they never got SDS training, your sign-in sheet from two years ago probably won't save you.
What are the GHS pictogram meanings workers need to know?
The nine GHS pictograms are black symbols on a white background inside a red diamond. Workers need to recognize all nine and know what hazard each one flags. Here's the full set: [3]
| Pictogram | Symbol name | Hazard types |
|---|---|---|
| Flame | Flammable | Flammables, pyrophorics, self-heating, self-reactives |
| Flame over circle | Oxidizer | Oxidizing chemicals |
| Exploding bomb | Explosive | Explosives, self-reactives, organic peroxides |
| Skull and crossbones | Acute toxicity | Fatal or toxic if swallowed, inhaled, or absorbed |
| Exclamation mark | Irritant | Skin/eye irritants, sensitizers, acute toxicity (less severe) |
| Health hazard | Serious health hazard | Carcinogens, mutagens, reproductive toxins, organ damage |
| Corrosion | Corrosive | Skin/eye burns, corrosive to metals |
| Gas cylinder | Compressed gas | Gases under pressure |
| Environment | Environmental hazard | Aquatic toxicity (not required by OSHA, added by some manufacturers) |
The exclamation mark trips people up because it can mean a mild irritant or it can mean acute toxicity category 4, which is not mild at all. Teach workers to check the hazard statement on the label to read the severity behind the pictogram.
During training, show real products. Pull the actual can of brake cleaner or the jug of floor stripper off the shelf and walk each label element in front of the workers who use it. That 10-minute exercise lands harder than any slide deck.
Does hazcom training apply to every chemical in the building?
No, not every substance. 29 CFR 1910.1200(b)(6) lists several exemptions. Hazardous waste regulated under RCRA, tobacco products, wood and wood products in solid form, articles (items that release no chemical under normal use), food and drugs in consumer packaging used the way a consumer would use them, and a handful of others sit outside the rule. [1]
The tricky category is consumer products. The exemption applies when the product is used in the same manner, duration, and frequency as a consumer would use it. If your cleaning crew sprays Windex on a window once a week, that might qualify. If the same product runs eight hours a day in a manufacturing process, it doesn't. The distinction is real, and OSHA has addressed it in letters of interpretation.
For everything that is covered, the job is to keep an SDS and to fold that chemical into your training. You don't have to give equal air time to every product. Isopropyl alcohol used now and then deserves less time than a chlorinated solvent used daily in a confined space. Rank by real exposure risk.
Your chemical inventory list, required under 1910.1200(e)(1)(i), is the starting point. If it's on the list, it's in scope. If you find a product on the shelf with no SDS, that's a separate violation to fix first.
How long does hazcom training take, and how much does it cost?
There's no required duration in the standard. Thorough initial training for a small employer with a modest chemical inventory runs 45 minutes to 2 hours. Annual refresher training for experienced workers on the same chemicals usually runs 20 to 45 minutes. For workers new to chemical environments, plan more time for the SDS walkthrough and label reading.
Cost swings widely. Online hazcom courses from third-party providers run $15 to $50 per worker. In-person training from a safety consultant runs $500 to $2,000 for a small group session depending on your region and the trainer's scope. Doing it in-house with a competent trainer and good materials can put the per-worker cost well under $10, mostly the trainer's time.
For small businesses, the in-house route makes sense when you have a manager or lead worker who knows the chemicals and can explain them plainly. The catch: in-house trainers tend to fall into the same rote presentation year after year, which stops being training and starts being a box-check.
OSHA's own free resources go underused. OSHA's website has hazard communication guidance and QuickCards, and the Alliance Program has produced free Spanish-language hazcom materials. [11] The cost of not training runs much higher. Training-related hazcom penalties land in the $3,000 to $7,000 range in practice, and that's before any workers' compensation or medical bills from a chemical exposure.
BLS data shows private industry workers had about 2.3 million nonfatal workplace injuries and illnesses in 2023, and chemical exposure incidents make up a meaningful share of occupational illness cases. [12] Good hazcom training hits that exposure pathway directly.
What about online or computer-based hazcom training, does OSHA accept it?
Yes. OSHA accepts computer-based and online training as long as it covers the required content and workers can ask questions and get answers. That last part matters. A video or click-through module with no way to raise questions and no follow-up fails the standard even when the content is accurate. [5]
In practice, online training should come with a way for workers to raise questions: a supervisor review session after the module, a phone number they can call, or an in-person component for the site-specific walkthrough. Many employers run a hybrid. The online module covers GHS label format and SDS structure, then a 15-minute supervisor-led walkthrough shows workers the actual chemicals, the actual SDS binders, and the actual labels in their own work area.
OSHA's letters of interpretation have addressed online training and hold a consistent line: technology delivery is fine, but it can't erase the interactive element. A worker who clicks through a module and never sees their actual chemicals or SDS location isn't trained in any real sense. [5]
For workers who need Spanish-language training, several OSHA-referenced platforms offer Spanish modules. Verify the content was written or reviewed by a qualified person rather than run through machine translation. The SDS section names and GHS terminology have specific Spanish translations that matter for real comprehension.
What's in a written HazCom program and how does training connect to it?
Your written HazCom program is the backbone that training has to reference. Under 29 CFR 1910.1200(e), the written program describes how you'll meet the labeling requirements, how you'll maintain and provide access to SDSs, and how you'll train workers. It also lists the methods you use to inform workers of hazards in non-routine tasks and in pipes or containers that aren't individually labeled. [1]
The written program is not a training record. It's a policy document that lays out your system. Training is what you do to make sure workers understand that system.
Here's the connection. Your training content should mirror your written program. If the program says SDSs live in a break room binder and on a shared drive, training shows workers both spots. If the program says new chemicals need supervisor approval and SDS review before use, training drills that procedure.
A written program that sits in a file and doesn't match how the workplace actually runs is worse than useless on inspection. An OSHA compliance officer reads it, then asks workers how things really work. Gaps between the document and reality generate citations.
If you need to build or update your written HazCom program, SafetyFolio's safety program generator produces a site-specific document based on your chemical inventory and workplace setup, which you can then use as the literal training reference during worker instruction.
For the fuller picture on hazard communication program requirements, including what goes in the written plan and how SDS management works, read that before you draft or revise your program.
What happens with multi-employer worksites and hazcom training responsibilities?
Multi-employer worksites, common in construction, general contracting, and facilities maintenance, create shared hazcom responsibilities that both the controlling employer and subcontractors have to understand. Get the split wrong and both parties can eat a citation.
The framework: if a subcontractor's workers are exposed to chemicals the general contractor or host employer introduced (or the other way around), both parties have obligations. The host employer has to make sure contractor workers can access SDSs for chemicals they may encounter and has to provide information about site-specific hazards. The contractor trains its own workers on chemical hazards.
In practice, the host employer runs an orientation covering site-specific chemical hazards, and the contractor handles the broader hazcom training for its crew. Both document what they covered and who covered it. Putting that division in writing in the contract or a safety plan heads off confusion during an inspection.
Lockout/tagout, fall protection, and hazcom draw the most multi-employer citation disputes. If you're a contractor working in a host facility, ask for the site's SDS list and chemical inventory before the job starts. If you're the host, require contractors to submit their own hazcom training documentation and confirm their workers got it. [13]
For more on multi-employer safety obligations, our osha training requirements article covers the framework.
Frequently asked questions
How often is hazcom training required by OSHA?
OSHA requires training before initial assignment to work with hazardous chemicals and again whenever a new hazard is introduced. There's no fixed annual requirement in 29 CFR 1910.1200, but OSHA's letters of interpretation say refresher training is required when there's reason to believe workers don't understand the hazards. Most employers run annual refreshers to close turnover gaps and stay inspection-ready.
What is the OSHA penalty for not having hazcom training?
Hazcom training violations are usually classified as serious. The 2024 maximum penalty for a serious violation is $16,131 per violation. In practice, small employers with a clean record often see penalties in the $2,000 to $7,000 range after size and good-faith reductions. Multiple training-related violations in one inspection can stack. Workers' compensation costs from an actual chemical exposure typically dwarf any OSHA fine.
Does hazcom training have to be in Spanish if my employees speak Spanish?
Yes. OSHA requires training in a language and vocabulary workers understand. If your workers aren't proficient in English, Spanish-language training is required, not optional. A translated handout stapled to English-only training does not satisfy the requirement. OSHA's Alliance Program has published free Spanish-language hazcom materials, and several training providers offer OSHA-compliant Spanish modules.
What is the difference between MSDS and SDS under GHS hazcom?
MSDS (Material Safety Data Sheet) was the pre-2012 format, with no standardized section order and wide variation between manufacturers. SDS (Safety Data Sheet) is the GHS-aligned format OSHA required by 2015. It has 16 standardized sections in a fixed order. Section 2 covers hazard identification, Section 8 covers exposure controls and PPE, and Section 4 covers first aid. SDSs are easier to use in an emergency because the layout is predictable.
Is online hazcom training OSHA compliant?
Online and computer-based hazcom training is acceptable to OSHA as long as it covers all required content and includes a way for workers to ask questions and get answers. A click-through video with no interactive element or follow-up fails the standard. Most employers pair online modules with an in-person walkthrough of actual chemicals and SDS locations in the specific work area, which satisfies both the content and interactive requirements.
What are the nine GHS pictograms workers must recognize?
The nine GHS pictograms are: flame (flammable), flame over circle (oxidizer), exploding bomb (explosive), skull and crossbones (acute toxicity), exclamation mark (irritant or less-severe toxicity), health hazard (carcinogens, reproductive toxins, organ damage), corrosion (burns to skin and eyes, metal corrosion), gas cylinder (compressed gas), and environment (aquatic toxicity). OSHA requires all nine in training, with workers able to identify what each represents.
Do I need hazcom training records and how long do I keep them?
Yes, training records are essential. OSHA doesn't set a format or minimum retention period in 29 CFR 1910.1200 for training records specifically, but inspectors will ask for them and worker interviews can expose gaps. Best practice is to keep records for the duration of employment plus at least three years. Records should include the worker's name, training date, content covered, and trainer's name. Gaps for new hires or post-new-chemical training are common citation drivers.
Are consumer products exempt from hazcom training?
Consumer products are exempt only when used in the same manner, duration, and frequency as a consumer would use them. If your workers use a product briefly and infrequently for normal purposes, the exemption may apply. If the same product is used repeatedly, for extended periods, or in larger quantities as part of a work process, the exemption falls away and SDS and training requirements apply. OSHA has addressed this in letters of interpretation.
Who can deliver hazcom training, does the trainer need a certification?
OSHA does not require a specific certification for hazcom trainers. The trainer has to be knowledgeable about the chemical hazards and the requirements of the standard. A trained supervisor, safety manager, or qualified employee can deliver hazcom training. If you use a third-party trainer or online platform, verify the content matches your specific chemical inventory rather than relying on generic industry content that may not reflect your actual hazards.
What chemicals are exempt from OSHA's Hazard Communication Standard?
29 CFR 1910.1200(b)(6) exempts hazardous waste regulated under RCRA, tobacco products, wood and wood products in solid form, articles that release no chemical under normal use, and consumer products used by workers the way a consumer would use them. Food, drugs, and cosmetics in consumer packaging used normally are also excluded. Everything else that meets the definition of hazardous chemical is covered.
How does hazcom training relate to the GHS globally harmonized system?
OSHA's 2012 revision to the Hazard Communication Standard aligned it with the United Nations' GHS, the Globally Harmonized System of Classification and Labelling of Chemicals. GHS standardized label elements (pictograms, signal words, hazard statements, precautionary statements) and the 16-section SDS format across countries. Training under OSHA hazcom now requires workers to understand GHS label elements and the SDS format specifically, well beyond general chemical awareness.
What do I train workers on when a new chemical is added to the workplace?
When a new hazardous chemical is introduced, you have to provide training before workers are exposed. Cover the specific hazards of that chemical (using its SDS, especially sections 2, 4, 7, and 8), the appropriate PPE, exposure limits if any, and any work practices or engineering controls that apply. You don't have to redo the entire program, but you do have to document that you specifically addressed the new chemical with affected workers.
Is hazcom training required for office workers who occasionally use cleaning products?
It depends on how those products are used. If office workers use commercial cleaning supplies infrequently the way a consumer would, the consumer product exemption may apply. If they use janitorial chemicals regularly or in concentrated forms, hazcom training is required. In practice, many employers include basic hazcom awareness training for all workers and reserve detailed SDS instruction for those with regular chemical exposure.
Sources
- OSHA, 29 CFR 1910.1200 Hazard Communication Standard (full text via eCFR): Training must occur at initial assignment and when new hazards are introduced; written program, SDS access, and labeling are required under 1910.1200(e), (g), and (h)
- OSHA, Hazard Communication topic page (2012 GHS alignment): OSHA revised HazCom in 2012 to align with the UN Globally Harmonized System; training compliance deadline was December 1, 2013
- OSHA, Hazard Communication topic page (GHS pictograms and hazard classes): Nine standardized GHS pictograms are required on chemical labels; each represents specific hazard categories workers must be trained to recognize
- OSHA, Hazard Communication topic page (Safety Data Sheets overview): GHS-aligned SDS format has 16 standardized sections; Section 2 covers hazard identification, Section 8 covers exposure controls and PPE
- OSHA, Standard Interpretations (letters of interpretation index): OSHA letters of interpretation confirm training must be specific to workplace chemicals and must include a mechanism for workers to ask questions, even if delivered online
- OSHA, Hazard Communication topic page (2024 Final Rule): OSHA published a final update to the Hazard Communication Standard in May 2024 with revised chemical hazard classifications and labeling provisions
- OSHA, Publications (QuickCards and multilingual materials): OSHA requires training to be conducted in a language workers understand; Spanish-language hazcom materials are available through OSHA's publications and Alliance Program
- OSHA, Enforcement (inspection procedures): OSHA inspections include document review and worker interviews; inspectors may ask workers to locate SDSs and identify pictogram meanings to test training effectiveness
- OSHA, Top 10 Most Cited Standards FY2023: Hazard Communication was OSHA's second most cited standard in FY2023, with 2,976 violations issued
- OSHA, OSHA Penalties (current adjusted amounts): OSHA's 2024 maximum penalty for a serious violation is $16,131 per violation; willful or repeated violations reach $161,323; small employer size reductions of 40-60% typically apply
- OSHA, Hazard Communication topic page (guidance and publications): OSHA provides free hazard communication guidance documents and multilingual resources including Spanish-language materials through the Alliance Program
- Bureau of Labor Statistics, Injuries, Illnesses, and Fatalities (2023 data): BLS reported approximately 2.3 million nonfatal workplace injuries and illnesses in private industry in 2023; chemical exposure incidents contribute to occupational illness totals
- OSHA, Enforcement Directives (Multi-Employer Citation Policy CPL 02-00-124): OSHA's multi-employer citation policy assigns hazcom training responsibilities to both host employers (site-specific hazards) and contractors (general worker training)