today's announcement.

Kicking off today's summer solstice, several families gathered in Washington, D.C., they're calling on the federal government to finalize a new rule they say could save lives.

An average of 39 children die in hot cars each year in the U.S. according to the advocacy group, Kids and Car Safety in 2021, a bipartisan infrastructure law was passed requiring automakers to install alert systems in rear seats of all new cars.

3 years later, the new rule has still not been adopted.

Today, parents of children who died in hot cars made emotional pleas for change.

>> Technology exists.

It's readily available to stop hot car and I will work for the rest of my life to ensure that this doesn't happen to anyone >> 27 children have died in a hot car in Kentucky since 1990, the most recent death was in 2020 in Christian County, Kids and Car Safety says in most cases the person responsible was a loving and protective caregiver.

He just made a deadly mistake.