Also known as the Safe Drinking Water and Toxic Enforcement Act of 1986, California Proposition 65 is a law that requires warning to consumers if a product exposes consumers to a wide variety of chemicals including lead and cadmium. Prop 65 does not ban any product; it simply requires warnings. Prop 65 applies only in California, and covers all products distributed in the state. Please note-AMA,Inc complies with all Federal Regulations concerning chemical contents. The State of California requires significantly stricter standards be met. For additional information, please visit:

The State of California requires that no person in the course of doing business shall knowingly and intentionally expose any individual to a chemical known to the State of California to cause cancer or reproductive toxicity without first giving a clear and reasonable warning.
Accordingly, if Buyer and/or Distributor fail to provide AMA, Inc advance written notice that AMA, Inc's product will be sold or shipped to the State of California, Buyer and/or Distributor hereby indemnifies and agrees to defend and hold harmless AMA, Inc, its agents, employees, representatives and affiliated companies, from and against any and all Proposition 65, personal injury and property damage claims, and from all other costs, liabilities, damages and expenses (including, without limitation, attorneys fees and litigation expenses on account thereof or in connection with any investigation or preparation related thereto or the enforcement of this provision) relating to, resulting from, connected with or arising out of goods or products provided to buyer by AMA, Inc, to the maximum extent permitted by law.
California is the only state that has such a law enacted. The level of all chemicals particularly lead and cadmium are within acceptable Federal Standards however, California law requires this warning.
There is no inks at this time that are suitable for printing glassware that would not require this warning.
All glass ware is printed 3/4" of an inch as an extra measure of safety in compliance with California state law.
Any time a company is selling printed glassware in the state of California they are required by law to provide this warning. If they do not provide this warning they are exposing themselves to potential litigation as they are not in compliance with California Law.
For example if a customer buy mugs and we don't put a label on them that customer could file a complaint with the state and we could be fined. Additionally, if we sell mugs to a customer and they choose to take the warning labels off they are exposing themselves to potential litigation.
The California Attorney Generalís Office enforces Proposition 65. In addition, any individual acting in the public interest may enforce it by filing a lawsuit against a business alleged to be in violation of this law. Penalties for violating Proposition 65 by failing to provide notices can be as high as $2,500 per violation, per day.
To reiterate, there is no ink that is available currently that is completely void of all chemicals that require a warning label. None.
Here are links to several mfg companies showing their warnings.