Which laws regulate diver behavior

True because all jobs are different and they all have chemicals that are for cleaning

If it's a smaller child or infant, place one on the middle of the chest and on the child's back. (if it is a bigger child with enough room for two, place one on the upper right/your left of the chest, and one on the lower left/your right) the pads should never touch each other. 

It is less likely that the shoe will slip while someone is walking