Typically, first aid kits are over-the-counter products and anyone can purchase them - in fact, many use the flexible spending accounts to purchase with tax benefits (just make sure they contain bandages to qualify!)
Furthermore, many will "step it up" to a first aid cabinet, an ems bag, trauma kit or first responder pack to be really prepared... however, there are some restrictions one a few "medical kits". Some States won't allow sale of kits containing invasive devices (like sutures and syringes) except to licensed medial personnel...
Which states prohibit the sale of certain medical kits containing syringes?
The following states prohibit the sale of the Suture & Syringe content Medical Kits:
Alabama, California, Washington DC, Delaware, Georgia, Hawaii, Nevada, New York, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Carolina, and Virginia.