The Conference on College Composition and Communication (CCCC) presents this position statement to provide guidelines for how best to prepare and support postsecondary instructors of writing throughout their careers. In producing this statement, CCCC envisions many audiences that may possess disparate interests, including undergraduate and graduate students; parents or guardians; high school instructors who facilitate Dual Credit and Concurrent Enrollment (DC/CE) courses; prospective and current postsecondary instructors of writing; writing program administrators; department chairs; college and university administrators; and municipal, state, and national legislators. With so many interested groups involved in or concerned about the preparation of those who teach postsecondary writing, there is a need for direction and clarity regarding what principles should inform the preparation and continued professional development of postsecondary writing instructors. [This statement replaces the CCCC Position Statement on the Preparation and Professional Development of Teachers of Writing, November 2015.]