IRS DETERMINATION LETTER (CONFIRMING 501(c)(3) STATUS) IRS DETERMINATION LETTER (CONFIRMING 501(c)(3) STATUS) July 7, 2023: Confirmation letter from IRS confirming ASOR’s 501(c)(3) status with the new name, American Society of Overseas ResearchMay 25, 2011: Confirmation letter from 20211 from IRS confirming ASOR’s 501(c)(3) status with prior name, American Schools of Oriental Research Browse the News Archive