"cad" plating has pretty much been replaced by zinc which has a dye added to give the color (same as for cad parts). In some industries chrome was reduced by going to nickel sulfamate or thermal spray. The goal is to reduce the amount of heavy metals leaching into the ground water as well as the exposures from application and use.
Not a metallugist, just spent a few years at a large aerospace company trying to figure out how to keep ahead of the regulators both domestic and EU.
