ARSD 44:12:01:18. Needle construction -- Sterilization required

All needles must be either stainless steel or nickel-plated carbon steel. Needles may be soldered to stainless steel bars using a silver-bearing solder. Lead-bearing solder may not be used in this process. Needles are a single-service item and must be thoroughly cleaned and sterilized between patrons. Rusty or faulty needles may not be used for tattooing or saline tattoo removal.