California Prop 65 Labels for Custom Apparel

What Prop 65 Requires From a Custom Apparel Seller

Prop 65 is California's chemical warning law, and it asks one thing of a seller: give a clear and reasonable warning before a buyer is exposed to a listed chemical. For apparel that usually means a hangtag, a neck label or a notice on the product page. Prop 65 is not a ban on the product and it is not a certification. It is a disclosure rule with a documented safe harbor, and a custom apparel seller who treats a prop 65 notice as paperwork ends up rewriting labels after the first order into California.

When a Prop 65 Warning Applies to Apparel

The law covers a long published list of chemicals, and the trigger is exposure above a defined level rather than the presence of a substance. A garment can contain a listed chemical and need no warning if exposure stays below the safe harbor threshold for it. That is why two similar shirts can carry different notices.

For a print on demand seller, the question is which parts of the finished item a buyer touches or wears. Fabric, print ink, the coating on a zipper pull and any applied decoration all sit inside the scope. Ink chemistry matters as much as fiber content, which is not obvious to sellers moving from plain blanks into printed goods.

Chemicals That Appear on the List

A few groups come up repeatedly in apparel. Lead and lead compounds, which can appear in older inks or in metal trims. Phthalates, used as plasticisers in some plastisol and heat transfer materials. Formaldehyde, present in some finishes and anti-shrink treatments. And a set of chemicals tied to certain dyes. The list is updated over time, so one trigger can add several substances in a year. That argues for a supplier who tracks the list over one who certified a product once and moved on.

How to Word a Prop 65 Warning

California publishes safe harbor wording, and using it removes most of the argument about whether a prop 65 warning is clear enough. The short form names the chemical category and points to the state website. The long form names specific chemicals, which is the right choice when the exposure is known and the substance is identified.

Two rules matter more than the exact sentence. The warning has to reach the buyer before purchase, not after. And it has to appear in the same language as the rest of the packaging, so a prop 65 notice printed in English on a product sold into a Spanish language listing fails. Treat the published text as the text, and let a lawyer review anything a marketplace asks you to shorten. The same discipline applies to labeling rules elsewhere, set out in this guide to EU textile labeling rules for POD apparel.

Where the Label or Notice Goes

A physical prop 65 warning belongs where a buyer sees it while handling the item, and on the packaging when the item has no room. A hangtag, a printed line on the mailer and a short notice on the product page cover the realistic paths. Putting it only on an insert inside a sealed bag is the weakest option, because some buyers never open the bag before deciding.

For an online sale, the product page is the practical place to disclose. A line near the specifications, in the same visual weight as the rest of the text, meets the intent. Burying a prop 65 notice in a footer does not.

Adding a label to a custom run is a production decision rather than an afterthought. Placement, size and fold have to be specified before the batch is sewn, and the choices are covered in this guide to custom label and hangtag development.

Selling Online Into California

A seller outside California still has to comply when a prop 65 product ships to a California address. The obligation follows the destination, not the warehouse, which catches out brands that assume a US warehouse elsewhere settles the question.

Marketplace Rules and Listing Text

Marketplaces layer their own requirements on top of the state rule. Some restrict where a prop 65 warning can sit in a listing, and some require the notice attached to the product record rather than only to the listing text. Keep one master block of prop 65 text and reuse it across every listing, so a change reaches every channel and the notice stays consistent with the physical label.

What Prop 65 Does Not Require

It does not require testing, and it does not require a warning on every product. A seller who warns on everything is covering risk with noise, and buyers stop reading a prop 65 notice that appears on a whole range. The rule is about exposure above a threshold, so a supplier conversation is worth more than a blanket warning.

It also does not replace other obligations. Packaging rules in several markets, customs declarations and consumer safety duties sit alongside the chemical warning, each with its own paperwork. The overlap between material rules and warning rules is covered in this guide to GPSR compliance for print on demand sellers, and the packaging side is compared in these notes on EU packaging rules for POD sellers.

Working With a Supplier on Prop 65 Paperwork

Ask three questions before a run ships into California. Which inks and transfers are used, and whether the material supplier publishes a statement for them. Which trims contain metal or plasticized parts. And what changes when a design is reprinted on a different blank.

Get the answers in writing and file them with the product record. A statement dated to the run is more useful in a dispute than a general page on a supplier website, and it gives you something to hand a marketplace if a listing is questioned.

Mistakes That Create Prop 65 Risk

Assuming the rule applies only to sellers based in California is the first. Warning on everything to be safe is the second. Publishing a warning after purchase is the third. And letting the label and the listing text disagree is the fourth, because a buyer comparing the two has a documented inconsistency to point at.

Branding is another place the two come together. A printed neck label and a hangtag are the natural home for the notice, and the options are laid out in these notes on private label tags and packaging for POD brands.

Prop 65 rewards a boring process: one master block of prop 65 text, one place it appears on the product, one place it appears online, and a supplier statement filed with the run. The custom product setup CatKissFish handles covers blanks, inks, labels and packaging on one order, so documentation for a finished item comes from one source. Most CatKissFish orders are produced in 2-3 days and ship from US warehouses, which means a question can be answered before a parcel reaches a California address. Review the requirement once a year, since the list moves, and confirm the wording with legal counsel before the next California run.

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