The U.S. House of Representatives on Wednesday, 25 Shahrivar, approved a bill that, according to one of its clauses, extends the “Iran Sanctions Act” known as “ISA” until the end of 2031. Under the current situation, this law is valid until the end of 2026.

Article 201 of this measure, by changing the law’s expiration date from 2026 to 2031, preserves the legal framework for sanctions against individuals and companies active in parts of Iran’s economy, especially the energy sector, for another five years.

The ISA law is among the legal bases for investment-related sanctions on the development of Iran’s oil resources, the provision of certain goods and services related to the production of oil products and petrochemicals, and participation in the transfer of oil while concealing its Iranian origin.

Previously, in 2016, the U.S. Congress had extended the validity of this law until December 31, 2026. After passing the legal steps and being signed by Donald Trump, the U.S. president, the new measure will prevent the law from expiring at the end of the current calendar year.

Extending the ISA law does not mean extending all U.S. sanctions against the Islamic Republic, because another part of the sanctions is based on different laws and executive orders.