Basically that was who handled car seats in my zip code
. The hospital should have a list of zip
codes and you find the one you live in and it has who you are to call to get car seats checked. The health department came out to my house (a woman, not the whole department) and put my car seat base in properly and helped me know how to do it. With my second child, we'd moved so for that baby--- my zip code said to go to the fire department for it.