Texas House Bill 2223 (2017) was developed to accelerate underprepared students' persistence and successful completion of credit-bearing college-level courses. This new corequisite mandate allows underprepared students to enroll in entry-level college courses and requires co-enrollment in a developmental education course/intervention designed to support the student's successful completion of the college-level course. This article describes the pilot model and how it has afforded the opportunity to identify the key elements and focus on curriculum development.