 By the end of 1978 the number of Aria shipping vessels was 42, with the total capacity of 525,000 DWT, which proved the increasing of the sea transportation volume by Aria shipping lines and its effective role in Iran economy.After the Islamic Revolution and change of economical and political policy on January 5, 1979, the authority renamed the Aria Shipping to Islamic Republic of Iran Shipping Lines (IRISL) and affiliated the company to the ministry of commerce.During the Iran–Iraq War, numerous vessels such as "Aria Boom", "Aria Jahan", "Aria Shaad", "Aria Omid", became total losses due to missile attacks, as a result of which the IRISL suffered dearly.