Most imports into Madagascar do not require an import license, except for a limited group of strategic items which are specially regulated by the Malagasy government. The importation of radioactive waste from nuclear power stations, pornographic materials, counterfeit products, pirated goods, and those with false labels of origin are prohibited. The imports of products such as firearms, weapons, explosives, and drugs need prior authorization as do diamonds, gemstones, gold/platinum jewelry, and vanilla. Madagascar also has special rules for the imports of tobacco leaf and requires import licenses for lubricants. In addition, Madagascar applies the same restrictions and/or concessions as required under the multilateral environmental agreements to which it is party.