Short answer: Nearly every workplace with hazardous chemicals must have a written hazard communication program under 29 CFR 1910.1200(e), and that written program must include a list of the hazardous chemicals known to be present "using an identity that is referenced on the appropriate safety data sheet." So the chemical inventory list is not a separate requirement — it is a mandatory component of the written program. Safety data sheets must be readily accessible during each work shift (1910.1200(g)(8)), but OSHA never says they have to live in a binder. And a Chemical Hygiene Plan under 1910.1450 is required only if you are a laboratory engaged in the laboratory use of hazardous chemicals — in which case the CHP largely replaces the HazCom written program, though labeling, SDS retention, and training obligations still apply.
That one paragraph resolves most of the confusion. The rest of this post explains where each document comes from, what has to be in it, and how to tell which standard governs your site.
The four documents, side by side
| Document | Citation | Who needs it | Is it separately required? |
|---|---|---|---|
| Written Hazard Communication Program | 1910.1200(e)(1) | Any employer whose employees may be exposed to hazardous chemicals under normal use or foreseeable emergency | Yes. Must be written and available to employees on request |
| Chemical inventory / list of hazardous chemicals | 1910.1200(e)(1)(i) | Same employers | No — it is part of the written program. Can be compiled for the whole workplace or by work area |
| Safety Data Sheets (binder, folder, or electronic) | 1910.1200(g)(8) | Same employers, for each hazardous chemical used | Yes, but format is your choice. Must be readily accessible, no barriers, each work shift |
| Chemical Hygiene Plan (CHP) | 1910.1450(e) | Laboratories meeting the "laboratory use of hazardous chemicals" definition | Yes, for labs. Replaces most of 1910.1200 for covered labs |
What 1910.1200(e) actually demands in writing
Many employers download a template, sign the cover page, and assume they are done. OSHA citations under 1910.1200(e)(1) are among the most common in general industry precisely because the written program is generic and does not describe the actual site. The standard requires that the program describe how the employer will meet the requirements for:
- Labels and other forms of warning — how incoming containers are checked and how secondary/workplace containers get labeled, including any in-house labeling system you use.
- Safety data sheets — who maintains them, where they are kept, how employees reach them during every shift, and what happens if an SDS is missing from a shipment.
- Employee information and training — what topics are covered, when training occurs, and who delivers it.
- A list of hazardous chemicals known to be present, identified by the name used on the corresponding SDS.
- Non-routine tasks — methods for informing employees of hazards in tasks like tank cleaning or confined-space entry.
- Multi-employer sites — how you will inform contractors and other employers of hazards and labeling systems, per 1910.1200(e)(2).
Who is exempt
A laboratory covered by 1910.1450 is relieved of the written HazCom program under 1910.1200(b)(3), and so are operations that only handle chemicals in sealed containers that are not opened (warehousing, retail sale, some distribution) — those employers still must keep labels intact, maintain SDSs received, and train employees per 1910.1200(b)(4). Consumer products used in the same manner and duration as ordinary consumer use are also excluded.
The chemical inventory list: specifics that matter
There is no OSHA-mandated format, no required review interval, and no requirement to record quantities. What the standard requires is that the identity on the list match the identity on the SDS and on the label, so a worker can trace a container to the right document in seconds. Practical guidance:
- Compile the list by work area if that is how your site is organized — 1910.1200(e)(1)(i) explicitly permits this.
- Use the product identifier exactly as it appears on the shipped label, not a shop nickname.
- Update it when a new chemical is introduced, not on an annual calendar. An outdated list is evidence of a program that is not maintained.
- Include chemicals generated as byproducts (welding fume, process dusts) when they pose exposure — these have no vendor SDS and are a frequent gap.
The SDS "binder" is a habit, not a rule
1910.1200(g)(8) says SDSs must be maintained in the workplace and "readily accessible during each work shift to employees when they are in their work area(s)." Electronic access is acceptable if there is an adequate backup for power or system failure, employees are trained on the system, and there are no barriers — meaning no locked office, no password only a supervisor knows, and no requirement to ask permission. If your night shift cannot reach an SDS without calling someone at home, you have a violation regardless of how many binders exist.
SDSs must also be retained under the exposure-records rules: 1910.1020(d)(1)(ii) generally requires employee exposure records to be kept 30 years, though SDSs themselves may be discarded if some record of the identity of the substance, where it was used, and when is kept for 30 years.
When 1910.1450 takes over: the Chemical Hygiene Plan
The Laboratory Standard applies where chemical manipulations are carried out on a laboratory scale, multiple chemical procedures or chemicals are used, the procedures are not part of a production process, and protective equipment and practices are available and in common use. Quality control labs inside a manufacturing plant usually qualify; a plant floor that happens to have a pH meter does not.
What the CHP must contain
Under 1910.1450(e)(3), the written CHP must include standard operating procedures for work with hazardous chemicals, criteria for implementing control measures such as fume hoods, a requirement that fume hoods and protective equipment function properly with specific measures to ensure adequate performance, information and training provisions, circumstances requiring prior approval, provisions for medical consultation and examination, designation of a Chemical Hygiene Officer, and additional protections for select carcinogens, reproductive toxins, and acutely toxic substances. The employer must review and evaluate the CHP's effectiveness at least annually and update it as necessary — an interval the general HazCom standard does not impose.
Exposure monitoring and medical consultation
Labs must conduct initial monitoring if there is reason to believe exposures routinely exceed the action level (or PEL where there is no action level) for an OSHA-regulated substance, per 1910.1450(d). Employees who develop signs or symptoms of exposure, or who are exposed above the action level, must be provided medical consultation by a licensed physician at no cost, at a reasonable time and place.
Training: the piece paperwork cannot cover
Under 1910.1200(h)(1), training is required at the time of initial assignment and whenever a new chemical hazard is introduced into the work area. OSHA does not require annual HazCom refresher training, although many employers schedule it and some state plans or contracts do. Our Hazard Communication (GHS) course covers the nine GHS pictograms, signal words, the 16-section SDS format, and label elements — the general content every covered employee needs.
Be clear about the limit: an online course alone does not satisfy 1910.1200(h)(2), which requires employees to be informed about the specific hazardous chemicals in their work area, the location of your written program and SDSs, and your site's measures for protection. That site-specific portion must be delivered by the employer and documented. The same is true for lab staff — 1910.1450(f) requires training on the contents of your own CHP and the permissible exposure limits for substances you actually handle. Where respirators are used as a control, a general awareness course does not replace the fit testing and medical evaluation required by 1910.134; see our Respiratory Protection training for the classroom portion. Sites that use energy-isolating equipment during chemical line breaks should pair HazCom with Lockout/Tagout (LOTO) training.
Frequently asked questions
Does OSHA require an annual update to my chemical inventory?
No. 1910.1200 sets no review interval for the list. It must be accurate and reflect chemicals known to be present, so update it when chemicals are added or removed. A Chemical Hygiene Plan under 1910.1450(e)(4), by contrast, must be reviewed at least annually.
Can I keep SDSs only on a computer?
Yes, if employees have unimpeded access on every shift in their work area, are trained on the system, and you have a backup for outages — typically a phone number to the SDS vendor or a printed set for high-hazard areas.
If I have a lab, do I need both a CHP and a written HazCom program?
For the laboratory itself, no — 1910.1200(b)(3) exempts covered labs from the written program, but labels on incoming containers must stay intact, SDSs must be maintained and accessible, and training is still required. If your facility also has non-lab areas using chemicals, those areas need the full 1910.1200(e) written program.
How often must HazCom training be repeated?
OSHA requires it at initial assignment and whenever a new physical or health hazard is introduced. There is no federal annual refresher mandate, though retraining is expected when audits show employees cannot explain pictograms, SDS locations, or label elements.
Next step
Get the written program and inventory right, make SDS access provable on every shift, and document training for each employee. FastCredentials offers self-paced Hazard Communication (GHS) training with an immediate certificate of completion you can file alongside your written program. Enroll your team today.