Guitars that have nickel plated/chrome hardware will have to carry a warning Label sold in California.
WARNING; This product contains nickel which in known to cause Cancer and birth defects in the state of California.
Are you going to buy your kid a guitar that says this guitar causes cancer?
In our day and age of Online sales where distributors do not want special labeled products for California only, they want everything for everyone labeled which is going to effect the sales of a lot of products, plus signed legal documents that say manufactures are compliant with prop 65.
The state is not enforcing it, but bounty hunter lawyers are, so companies fear lawsuits so they are enforcing it. The list has 900 + thing listed!
Lawyers typically threaten then force a settlement between $20,000 - $50,000.
We have to dispose of all our dimes, nickels, and quarters.
https://www.cancer.org/cancer/cancer-causes/general-info/cancer-warning-labels-based-on-californias-proposition-65.html