Indoor tanning salons will charge customers a 10 percent tax beginning today in just one of the changes Americans will see as a result of the U.S. health-care overhaul signed into law by President Barack Obama.

Insurers will be required by September to begin providing health coverage to kids with pre-existing illnesses and allow parents to keep children younger than 26 on their plans as the clock has begun ticking on many of the law’s provisions. Medicare recipients will receive a $250 rebate for prescription drugs when they reach a coverage gap called the donut hole if the Senate passes and the president signs companion legislation approved March 21 by the U.S. House.