The Superintendent shall prepare and submit to the School Board proposals for School Board policies. The Superintendent may have the assistance of the School Attorney and shall have the authority to request a committee of citizens to assist in the preparation of any proposals. Policies shall be general application to the School District, shall be in writing, codified, and made available to the public. Policies shall be adopted by the Board at regular or special School Board meetings. The School Board shall give notice of its intent to adopt a Board policy stating the substance of the proposed policy at least 10 days prior to its adoption.