Amends the Wildlife Code. Provides that nontoxic ammunition, as certified by the Department of Natural Resources, shall be required when taking all wildlife, including game mammals, game birds, non-game birds, and non-game mammals with any firearm. Provides that the Department shall adopt by rule a public process to certify ammunition as nontoxic ammunition and shall define, by rule, nontoxic ammunition to include only ammunition in which there is no lead content, excluding the presence of trace elements of lead.