In this task, you are given a summary for US Congressional and California state bill, your task is to generate a Title for this bill. The preferred titles are under forty words and mention the purpose of the bill.
Q: Iran Diplomatic Enhancement Act of 2009 - Amends the Iran Sanctions Act of 1996 to direct the President to impose two or more sanctions under such Act if a person has, with actual knowledge: (1) on or after the date of enactment of such Act made an investment of $40 million or more (or any combination of investments of at least $10 million which in the aggregate equals or exceeds $40 million in any 12-month period) that significantly contributed to Iran's ability to develop its petroleum resources; (2) on or after the date of enactment of the Iran Diplomatic Enhancement Act of 2009 made an investment of $20 million or more (or any combination of investments of at least $5 million which in the aggregate equals or exceeds $20 million in any 12-month period) that directly and significantly contributed to Iran's ability to develop its petroleum resources; or (3) on or after the date of enactment of the Iran Diplomatic Enhancement Act of 2009 provided Iran with refined petroleum resources, engaged in an activity that could contribute to the enhancement of Iran's ability to import refined petroleum resources, or provided Iran with goods, services, or technology for refining petroleum. (Current law imposes sanctions upon investments of $40 million or more and does not include refined petroleum resource imports.)

Extends existing presidential waiver authority to such activities.

Directs the President to report to the appropriate congressional committees every six months on such activities.
A:
To amend the Iran Sanctions Act of 1996 to enhance United States diplomatic efforts with respect to Iran by expanding economic sanctions against Iran to include refined petroleum, and for other purposes.