Responding to the death of a young child can be one of the most difficult calls of an EMS clinician’s career—perhaps even more so when the tragedy was so easily avoidable. On average each year, 39 children die in the United States after being left or getting trapped in a hot car, according to NoHeatstroke.org.

You and your organization can help prevent these deaths by spreading a simple message in your community: “Park. Look. Lock.” Join @NHTSAgov for a Tweetup on Wednesday, July 1, from 7 a.m. to 7 p.m. EDT and get the word out to parents and caretakers: Always check the back seat when getting out of a vehicle, always lock an unattended vehicle, and never leave a child alone in a car, even for a minute.

Use the hashtags #HeatStrokeKills and #CheckForBaby to follow along and share this important information.