Private Prisons

In October 2021,  based on the recommendation of the ACIR, the Yale Board of Trustees adopted a policy making the two largest private prison operators, CoreCivic and GEO Group, ineligible for investment by Yale’s endowment. The CCIR’s statement can be found here

Fossil Fuels

In April 2021, the Yale Board of Trustees adopted principles to guide the university in applying its ethical investment policy to the fossil fuel industry.  These principles were developed and proposed by the Committee on Fossil Fuel Investment Principles. Read the Report
The ACIR will use these principles to identify fossil fuel producers that, upon approval of the CCIR, will be restricted from investment by Yale.  The ACIR established a webform where members of the Yale community may make suggestions.  The principles and the restricted list can be found here.


The ACIR attempts to hold regular meetings throughout the academic year, including at least one annual meeting.  Members of the Yale community interested in presenting at an open meeting should contact Jonathan Macey (

Past Announcements

Assault Weapons

The ACIR investigated ethical investment issues related to retailers selling assault weapons to the general public and recommended a divestment policy which was ultimately adopted by the university in June 2018.  

CCIR Statement Regarding Investment in Assault Weapon Retailers

Private Prisons

In June 2018, the Yale Board of Trustees adopted proxy guidelines for issues relating to private prisons which were drafted by the ACIR and endorsed by the CCIR. The ACIR will vote proxies subject to these guidelines should the university hold voting shares in publicly traded private prison companies.

Climate Change

Yale President Salovey announced on August 27, 2014 a series of new sustainability initiatives at Yale, including the adoption by the Corporation Committee on Investor Responsibility (CCIR) of new proxy voting guidelines to be implemented by the ACIR:  

CCIR Proxy Voting Guideline on Climate Change

Yale will generally support reasonable and well-constructed shareholder resolutions seeking company disclosure of greenhouse gas emissions, analyses of the impact of climate change on a company’s business activities, strategies designed to reduce the company’s long-term impact on the global climate, and company support of sound and effective governmental policies on climate change.

The President’s letter

The CCIR statement

Endorsement of Dwight Hall SRI Resolution Fund

Read about the ACIR Endorsement of the Dwight Hall SRI Resolution Fund for the Exxon Mobil Corporation annual meeting to be held on May 25, 2016.

Sudan Divestment

Read about the Sudan Divestment and the 2013 policy update.