P65 lead warning for cord

[chawke]

I bought a cable with a preposition 65 notice for lead and lead compounds. This notice isn't found for many other cables but I realize it can be excluded from packaging in areas where not required. Is it that most cords/cables still contain lead but don't have notices, or most today don't have lead?

[StringJunky]

It's apparently used in flexible pvc products, like wire insulation,  to reduce cracking. As long as you aren't chewing said products, that's California going overboard.