The letter could come from the mayor, or an emergency room physician, a seat belt survivor or the family member of a victim. If you are not that person, consider writing the letter for that person. If they agree to support your efforts, they will need only to sign the letter. The letter of invitation should reflect the accepted communication style in your community. Some communities will respond better to a more personalized letter with an explanation about why the recipient is being asked to become involved.
Some communities respond more favorably to a more formal, general letter of invitation.
If you ask our Emergency Room staff, they will likely tell you 'motor vehicle crashes'. More than people are injured or die each year from traffic crashes in our community. The good news is that most crashes and serious injury can be prevented. A personal story is often very effective. We can no longer sit by and watch our children be harmed in motor vehicle crashes, mistakenly believing this is an inevitable part of life.