Does My Product Need a California Prop 65 Warning Decal or Label?

Prop 65 Warning Label Questions, Answered

What are the new requirements for P65 warning labels?

California's Office of Environmental Health Hazard Assessment (OEHHA) revised the short-form warning rules so businesses can no longer default to generic short-form text on every product. Under the updated regulation, the short-form warning is now reserved for products with small labels — 5 square inches or less — and it must include at least one chemical name whenever the label area allows for it. Businesses were given a transition window to bring existing packaging and labels into the updated format, so it's worth checking your current warning language against current OEHHA guidance before your next print run of custom warning labels. 

Should I worry if a product has a Prop 65 warning?

Not necessarily. The American Cancer Society notes that Prop 65's chemical list is long and its exposure thresholds are conservative, so many everyday products carry a warning even when the real-world risk is low — the label is a legal disclosure requirement, not a recall notice or a safety alert. Peer-reviewed research on chemical exposure risk, including cancer-risk estimation studies that draw on Prop 65 potency factors, underscores that the presence of a listed chemical is only one input in a broader risk calculation involving dose, duration, and route of exposure. If you're a seller, the more relevant question is whether your own product needs the warning under the law — not whether a warning label alone signals danger to your customers. 

What are the legal requirements for warning labels under Prop 65?

A compliant warning must include the signal word "WARNING" in bold capital letters, a yellow triangle with a black exclamation point (for physical product labels — a black-and-white version is allowed in limited cases), and specific language identifying at least one listed chemical and the type of harm it may cause (cancer, reproductive harm, or both). The warning must be prominent, legible, and placed where a consumer will notice it before purchase or exposure, whether that's on the product, the packaging, or a point-of-sale sign. Decals.com prints the exact artwork you approve on custom warning labels; actual regulatory compliance depends on your wording, symbol placement, sizing, and the specific standards that apply to your product or industry, so have your legal or compliance team verify the layout before you print in bulk. 

Where are Prop 65 warning labels required?

Warning labels are required anywhere a business with 10 or more employees knowingly exposes a California consumer to a listed chemical above the safe-harbor level. That includes products sold in California retail stores, products shipped to California addresses from an online store anywhere in the country, and physical locations such as parking structures, manufacturing facilities, and rental properties. If any portion of your customer base is in California, it's worth reviewing your labeling regardless of where your business is based — this is especially true for OEM manufacturers shipping components, equipment, or fleet vehicles nationwide. 

What size and material should I choose for a Prop 65 warning decal?

Size depends on your product's available surface area and the minimum type-size rules tied to Prop 65's signal word and chemical language. Decals.com's Custom Warning Labels run from 1" × 1" up to 8" × 8" through the standard size selector, with custom quotes available for anything larger or smaller. Choose between Economy Safety (calendered vinyl), which holds up 3 to 5 years outdoors, and Premium Safety (cast vinyl), rated for up to 8 years — which matters if the label will live on equipment, containers, trailers, or vehicles exposed to sun and moisture. Both materials are available in matte or glossy laminate finishes and include a scratch-, UV-, and water-resistant coating. 

Can I upload my own artwork, or do you provide a Prop 65 warning label template?

You can upload finished artwork that already includes the required signal word, triangle symbol, and chemical warning language, or start from a blank layout and add your own text and logo in the online designer. Preferred file types are vector EPS or print-ready PDF with fonts converted to outlines; high-resolution JPG, TIFF, or PNG files are also accepted. Before committing to a bulk run, order a digital proof or a physical sample to confirm the warning text is legible at final print size, and use color matching if your warning decal needs to match an existing brand or safety color standard exactly. 

How fast can I get custom warning labels, and do you offer bulk pricing?

Production times range from 1 business day (Priority) to 5 business days (Saver), with 2-day Express and 3-day Standard options in between — so you can match your timeline to your budget. After production, orders typically ship via UPS Ground and arrive within 2–4 business days to most of the United States; faster shipping options are available at checkout. Minimum order is 1 unit, and per-label pricing improves at higher quantities, which matters for manufacturers labeling entire production batches at once. 

Does every product with a listed chemical need a Prop 65 warning?

No. A warning is only required when the expected exposure level poses a significant risk under OEHHA's safe-harbor thresholds — many products contain trace amounts of a listed chemical without triggering the requirement. 

Is Prop 65 the same as an OSHA or ANSI warning label?

No. Prop 65 is a California consumer right-to-know disclosure law, while OSHA and ANSI Z535.4 govern workplace hazard communication and safety-sign formatting. A single product or facility can require labels under more than one standard at once, and each has its own wording, symbol, and placement rules. 

Can I put a Prop 65 warning on packaging instead of the product itself?

Yes, as long as the warning is prominent and a consumer will see it before purchase or exposure — on the product, the outer packaging, or a point-of-sale sign.

Do Prop 65 warning decals need to be a specific color?

The triangle symbol is typically yellow with a black border and exclamation point, though a black-and-white version is allowed in certain cases. Decals.com's color matching service can help ensure the printed yellow meets the expected contrast and legibility standard. 

What's the difference between die-cut and kiss-cut warning labels?

Die-cut labels are cut through both the vinyl and the paper backing, so each label is individually trimmed with no surrounding material. Kiss-cut labels are cut through the vinyl only, leaving a backing border around each label for faster peeling — useful for high-volume application lines. 

Do I need a different Prop 65 label for lead-containing products?

Products containing lead, such as certain electrical cords or metal components, typically carry more detailed warning language than a standard chemical warning. Confirm current wording requirements with your compliance team before finalizing artwork. 

How do I know if my exposure level requires a warning?

Businesses are responsible for evaluating their own product's chemical content against OEHHA's safe-harbor levels — this typically requires lab testing or supplier documentation, not a judgment call based on the label alone.