Public swimming pools operated by States, Counties, and Cities have a duty to install and maintain proper swimming pool drain covers to comply with an important law called the Virginia Graeme Baker Pool and Spa Safety Act. This law was signed by President Bush on December 19, 2007 and was put in place to prevent drownings and other injuries caused by drains that do not have proper drain covers to prevent such drownings and entrapments. You can read the federal law at Virginia Graeme Baker Pool and Spa Safety Act.
Having safety precautions in place at a swimming pool can help avoid personal injuries and drowning deaths. It is also important to have diligent supervision both by lifeguards and parents when children are in or around a swimming pool.