This is a law for employers with 50 or more workers. It applies to workers who need to take time off from work for: birth and care of a newborn child up to 12 months old; adoption or foster care of a child; care of an immediate family member (spouse, child or parent) with a serious health condition; medical leave because of a serious health condition that leaves a worker unable to do his or her job. Workers can get up to 12 workweeks of unpaid leave per year if they qualify. This law also provides certain rights for members of the military and their families.