Calvert Social Index Actions

BETHESDA, Md.--(Business Wire)--
The Calvert Social Research Department has submitted the following
recommendations regarding action within the Calvert Social Index(R).
If approved, the following recommendations will be effective when the
Calvert Social Index Committee convenes its quarterly meeting in March
2008.

ADDITIONS:

Mohawk Industries, Inc. (NYSE:MHK), a company in the Calvert
Social Index Universe, has recently been reviewed and now meets
Calvert's standards for workplace safety and environment. Measurable
improvement in performance and disclosure in these areas now places
Mohawk Industries favorably within its industry peers. If approved,
the inclusion will take place in March 2008.

MeadWestvaco Corporation (NYSE:MWV), a company in the Calvert
Social Index Universe, has recently been reviewed and now meets
Calvert's standards for environment. The company's improvement in
compliance performance, its leadership in addressing climate change
and product innovation places it favorably amongst industry peers. If
approved, the inclusion will take place in March 2008.

Tiffany & Company (NYSE:TIF), a company in the Calvert Social
Index Universe, has recently been reviewed and now meets Calvert's
standards for environment and human rights. The company has adopted a
policy of refusing to sell gems and other products mined in Burma. In
addition, the company now discloses policies and programs aimed at
mitigating the environmental and social impacts of mines that supply
the industry with gems and metals. As a result of these new
initiatives, the company is positioned favorably amongst its industry
peers. If approved, the inclusion will take place in March 2008.

DELETIONS:

None

What is the Calvert Social Index?

Calvert, a leader in socially responsible investing, has created
the Calvert Social Index(R) as a broad-based, rigorously constructed
benchmark for measuring the performance of US-based socially
responsible companies.

How is the Calvert Social Index constructed?

Calvert starts by taking the 1,000 largest companies in the US,
represented by stocks listed on the NYSE and NASDAQ-AMEX (not
including closed-end mutual funds, ADRs, REITS and non-common shares).
Calvert's Social Research Department then analyzes each company. A
social audit is conducted in the following areas: governance and
ethics; environment; workplace; product safety and impact; community
relations; international operations and human rights; and indigenous
peoples' rights. The stocks that meet Calvert's social criteria make
up the Calvert Social Index.

For more information on any Calvert fund, please contact Calvert
at 800.368.2748 for a free prospectus. An investor should consider the
investment objectives, risks, charges, and expenses of an investment
carefully before investing. The prospectus contains this and other
information. Read it carefully before you invest or send money.

Calvert mutual funds are underwritten and distributed by Calvert
Distributors Inc., member FINRA, a subsidiary of Calvert Group, Ltd.
#7800 (3/08)

Calvert
Melinda Lovins, 301-657-7089
Melinda.Lovins@Calvert.com

Copyright Business Wire 2008