HOWW Manufacturing manufactures plastic drinkware with safe materials. We use the Intertek for our testing and test reports for each material can be found at the links below:
Independent test reports listed show that our products fall under Safe Harbor Levels of toxicity, therefore we do not apply Prop 65 labels for orders. Prop 65 labels are available upon request only and so please indicate this on your P.O.
For more information about Prop 65 please go to https://www.p65warnings.ca.gov/faq/businesses/what-are-safe-harbor-numbers