The following words and terms, when used in this subchapter, shall have the following meanings, unless the context clearly indicates otherwise.(1) Commissioner--The Commissioner of Agriculture, Texas Department of Agriculture.(2) Department--The Texas Department of Agriculture.(3) Urban Public School District--A Texas public school district with an enrollment of at least 49,000 students.(4) Nonprofit organization--A corporation no part of the income of which is distributable to members, directors, or officers.