as activities involving ballistic missiles capable of delivering nuclear weapons. The ban also applies to investment in uranium mining. States are prohibited from selling or in any way transferring to Iran eight broad categories of heavy weapons (battle tanks, armored combat vehicles, large caliber artillery systems, combat aircraft, attack helicopters, warships, missiles or missile systems). States are similarly prohibited from providing technical or financial assistance for such systems, or spare parts. States are also to exercise vigilance and restraint in supplying any other arms or related materiel to Iran. Iran is prohibited from undertaking any activity related to ballistic missiles capable of carrying nuclear weapons and States are required to take all necessary measure to prevent the transfer of related technology or technical assistance. The resolution updates and adds to the list of technical items related to nuclear and missile proliferation that are banned for transfer to and from Iran. Iran is subject to a new regime for inspection of suspicious cargo to detect and stop Iran's smuggling. States should inspect any vessel on their territory suspected of carrying prohibited cargo, including banned conventional arms or sensitive nuclear or missile items. States are also expected to cooperate in such inspections on the high seas. Once prohibited items are found, States are now obligated to seize and dispose of the items. States are required not to provide critical support services (e.g., fuel, water) to ships suspected of carrying prohibited cargo. States must require their nationals to exercise vigilance over IRISL, a known sanctions violator. Three IRISL-related companies will have their assets frozen. States are requested to report any information on activities by IRISL and Iran's Air's cargo division to evade sanctions, including by renaming vessels. States are called upon to prevent any financial service – including insurance or reinsurance – and freeze any asset that could contribute to Iran's proliferation. This broad language will help states take action when there are suspected financial links to Iran's banned nuclear activities. States are required to ensure their nationals exercise vigilance when doing business with any Iranian firm, including IRGC and IRISL, to make sure such business does not contribute to Iran's proliferation. States are called upon to prohibit on their territories new banking relationships with Iran, including the opening of any new branches of Iranian banks, joint ventures and correspondent banking relationships, if there is a suspected link to proliferation. States also should