Models continued to be made from lead-based white metal alloys until the early 90s. In 1993 the New York legislature banned the use of lead in miniatures following health concerns, so many model manufacturers began casting in lead-free white metal alloys as there was a wide-spread concern that other states would introduce similar regulations, often at higher prices. Although the legislation was eventually changed to exempt miniatures, many manufacturers continued to use the lead-free metals. As this became more widespread more manufacturers began moving away from lead metals, with lead being rarely used anymore.