Do Safety Data Sheets Expire? What You Need to Know

A plant safety manager in Ohio showed me his SDS binder last year. Half the sheets were from 2016. "They don't have expiration dates," he said, "so they're still good, right?" Well... technically, sort of. But practically? He was sitting on a compliance time bomb.

I get this question constantly from safety managers: "My SDS is from 2018 — is it still valid?" The answer isn't as simple as checking a date, and that's where most people get tripped up.

Do Safety Data Sheets Actually Expire?

No, Safety Data Sheets do not have a formal expiration date under OSHA's HazCom standard (29 CFR 1910.1200). There is no regulation that says an SDS becomes invalid after a certain number of years. However — and this is the critical part — OSHA requires that SDS documents reflect the most current hazard information available. If a manufacturer updates an SDS and you're still using the old version, you're technically non-compliant.

What Triggers an SDS Update?

Manufacturers must revise their SDS when significant new information emerges. Here's what typically triggers a revision:

1. New toxicological data — Studies reveal previously unknown health effects from a chemical ingredient.
2. Regulatory reclassification — A substance gets reclassified under GHS criteria (e.g., from Category 2 to Category 1 carcinogen).
3. Formulation changes — The manufacturer alters ingredient concentrations or adds new components.
4. Updated exposure limits — OSHA or ACGIH revises permissible exposure limits (PELs) or threshold limit values (TLVs).
5. New first-aid or firefighting information — Better response procedures become available.

The 3-to-5-Year Guideline

While OSHA doesn't set a specific review cycle, most industry best practices recommend checking with manufacturers every 3-5 years. Some companies use a stricter 3-year window. The logic is straightforward: chemical safety knowledge evolves, and a decade-old SDS probably misses important updates.

What Happens if You Keep Outdated SDS Documents?

So what's the real risk of running on old SDS documents? It goes way beyond paperwork. It creates real safety gaps. If the PPE recommendations changed in a newer version — say, from standard nitrile gloves to chemical-resistant gloves — your employees are under-protected. If new health hazards were identified, your training materials are incomplete.

During OSHA inspections, investigators compare your on-file SDS against the manufacturer's current version. If yours is significantly outdated and the newer version contains materially different hazard information, that's a citable violation under HazCom. Penalties currently start at $16,550 per violation.

How to Keep Your SDS Library Current

Let me save you some frustration: the manual approach — calling or emailing every manufacturer one by one — doesn't scale beyond a dozen products. For larger inventories, a systematic SDS management process makes the difference between compliance and citations. Digital solutions can automate update checks, but even a simple spreadsheet tracking revision dates and manufacturer contact info helps.

Start by auditing what you have. Pull every SDS from your binder, check the revision date in Section 16, and flag anything older than three years. That's your priority list for requesting updates.

FAQ

Does OSHA require SDS documents to be updated every 3 years?

No. OSHA does not mandate a specific update schedule. The requirement is that SDS documents must be updated when significant new information about a chemical's hazards becomes available. The 3-year review cycle is an industry best practice, not a regulation.

Can I get fined for having an old SDS?

Yes, if the old SDS is missing hazard information that appears in the current version. OSHA expects employers to maintain accurate, up-to-date SDS documents for every hazardous chemical in the workplace.

Where do I find the most current version of an SDS?

Check the manufacturer's website first — most publish current SDS documents in a searchable database. You can also contact the manufacturer directly or use aggregator sites, though always verify the revision date matches the manufacturer's latest version.