Methamphetamine is a highly addictive central nervous system stimulant. It can be injected, snorted, smoked, or ingested orally. Commonly used street names for methamphetamine include (meth, crank, crystal meth, speed, and ice). Methamphetamine can be relatively easily manufactured through store-bought materials, and according to the Office of National Drug Control Policy, is the most prevalent synthetic drug produced in the United States. Methamphetamine is frequently produced in clandestine laboratories. These labs can result in serious physical injury from explosions, fires, chemical burns, and toxic fumes, produce environmental hazards, pose clean-up problems, and endanger the lives and health of children. There are generally two types of clandestine drug labs, "super labs" and "mom and pop labs." According to the U.S. Drug Enforcement Administration, "super" labs are highly organized labs and account for approximately 80% of all methamphetamine produced. "Mom and pop" labs are more common and typically manufacture a much smaller amount of methamphetamine often only producing enough drugs for their own and close associates' use. Although these labs account for a much smaller portion of all methamphetamine produced, they account for far more explosions, fires, hazardous waste dumping, and child endangerment.