The California Department of Public Health maintains a list of accredited laboratories. You can contact a lab near you and request cost information for conducting EPA Methods 3050B, 3051A and 3052 to comply with the Metal-Containing Jewelry Law. Since lead limits vary depending on the type of jewelry component, each component type must be tested and analyzed separately. The price of testing may vary depending on the number of jewelry components and the complexity of the components you have tested; laboratories can give you pricing information. Note: California’s Metal-Containing Jewelry Law requires the jewelry manufacturer or supplier to provide certification regarding the lead content of the jewelry. The manufacturer or supplier of jewelry or jewelry components providing the required certificate should ensure that the laboratory that tests the jewelry is qualified to do the type of testing required, i.e., the laboratory should have familiarity and experience with the specified sample preparation and testing techniques required by the law. It is in the manufacturer’s or supplier’s best interest to use a qualified laboratory. Additionally, the certificate should cover all of the jewelry materials that the law requires to be tested.