Corporate Governance

Effective April 11, 2011

Otter Tail Corporation is committed to accountability and good corporate governance. Accountability begins with the governance of the Corporation by the Board of Directors. These Corporate Governance Guidelines (the "Guidelines") have been adopted by the Board of Directors of the Corporation to assist Directors in the performance of their duties and the exercise of their responsibilities. The Board believes that good corporate governance is the starting point in insuring that Otter Tail Corporation is operated in an open, honest and ethical manner and in the best interest of our shareholders.

These Guidelines represent the current view of the Corporation's Board of Directors on governance and should not be viewed as rigid restraints. Accordingly, these Guidelines are subject to modification from time to time by the Board of Directors.

Board Size
Otter Tail Corporation is governed by a nine-member Board of Directors. The Bylaws of the Corporation, in conjunction with Minnesota law, permit the Board to increase the size of the Board of Directors, but it cannot be decreased without the approval of shareholders. Except for relatively short periods of time, Otter Tail Corporation has been governed by a Board consisting of nine directors. It is the intent of the Board to continue this practice.

Board Independence
The Board of Directors of Otter Tail Corporation shall have a substantial majority of independent directors as that term is defined by the NASDAQ Listing Standards.

Director Responsibilities
The core responsibility of Directors is to exercise their business judgment in a manner that they reasonably believe to be in the best interest of the Corporation and our shareholders. The Board seeks to nominate and retain Directors from a wide variety of business and life experiences that will enable them to constructively review and guide the management of the Corporation.

Serving on the Board of Directors involves a significant time commitment. Directors are expected to attend all of the meetings of the Board and of the committees on which they serve and the Annual Meeting of Shareholders. Directors are also expected to manage their commitments in order to permit them to devote adequate time and attention to the performance of their duties as members of the Board and its committees.

Terms
Directors are elected to three-year rotating terms on the Board of Directors. A Director shall resign his or her position on the Board effective on his or her 72nd birthday.

Director Meetings
The Board of Directors typically meets eight times per year in regular session. In addition, the Board of Directors has a planning retreat each year. As a part of its meeting and planning activity, the Board of Directors regularly meets in executive session both without management and without the non-independent Directors.

Committees
The Board of Directors operates with three committees. They are an Audit Committee, a Compensation Committee and a Corporate Governance Committee. Each Committee has a Charter which is reviewed and adopted annually. They can be found on the Corporation's website. The Board of Directors may from time to time create special committees for limited purposes and duration.

Access to Management and Independent Advisors
Directors have direct access to the executive management team of Otter Tail Corporation, generally through the Chief Executive Officer. However, Directors may also access individual executive officers related to their areas of expertise. The Board and its committees have the ability to obtain independent advisors at the expense of the Corporation as they deem necessary.

Director Compensation
Compensation for the Directors is determined by the Compensation Committee of the Board of Directors. The Compensation Committee consists solely of Independent Directors. The Committee will generally retain an outside consultant to establish appropriate peer groups for comparison purposes to assess the competitiveness of compensation provided to the Directors. Any such consultants shall be retained taking into consideration independence and effectiveness. Because the Corporation believes that Directors should have a stake in the outcome of the Corporation, Director compensation includes both cash and equity components. Present stock ownership requirement guidelines stipulate that 10,000 shares be obtained within five years of commencing Board service.

Director Orientation and Continuing Education
The Corporation is committed to providing appropriate orientation for new Directors. This orientation includes meetings with management, written material on the Corporation's organization and governance, recent Board minutes, recent filings with the Securities and Exchange Commission, strategic and operating plan information, corporate structure and organizational information and information about the Corporation's products and services and the industries in which the Corporation operates.

In addition, the Corporation will provide Directors with regular updates on Corporate Governance practices and the legal obligations for Board members. Directors may participate in additional educational opportunities that will enhance their effectiveness on the Board. It is generally expected that Directors will attend one external educational experience per term. The Corporation will reimburse Directors as appropriate for these educational experiences.

Succession Planning
A central duty of the Board of Directors is to select a Chief Executive Officer and to oversee the Chief Executive Officer and executive management team in the competent and ethical operation of the Corporation. The Board of Directors, through the Corporate Governance Committee, evaluates annually the performance of the Chief Executive Officer. Working with the executive management team, the Board of Directors plans for the succession of the Chief Executive Officer and other executive officers of the Corporation. As a result, the Corporation has a plan in place to address contingencies such as the departure, death, or disability of the Chief Executive Officer or a member of the executive management team so that in the event of an untimely departure, the Corporation can facilitate the transition of both on an interim and long-term basis.

Board Evaluation
The Board of Directors annually evaluates its role and performance on behalf of the shareholders. As a part of the process, each Director performs a self-evaluation on his or her contribution to the Board and his or her ability to do so in the future.

Code of Conduct
The Corporation has adopted a Code of Conduct which applies to all Directors, officers and employees of the Corporation and its subsidiaries. The Audit Committee of the Board of Directors reviews the Code of Conduct annually and recommends proposed changes to the Board of Directors. The Audit Committee has oversight responsibility for the administration of the Code of Conduct by management of the Corporation.