Education, Curriculum - As enacted, establishes that family life curriculum must include age-appropriate instruction and evidence regarding the positive personal and societal outcomes associated with the method by which a person completes the following in sequential order: obtains a high school diploma or high school equivalency credential; enters into the workforce or pursues a postsecondary degree or credential; enters into marriage; and has children. - Amends TCA Title 49, Chapter 6, Part 13.

HB 178, the "Success Sequence Act," requires Tennessee public schools to include age-appropriate instruction in family life curriculum about a specific sequence of life steps: obtaining a high school diploma or equivalent, entering the workforce or pursuing postsecondary education, marrying, and then having children. It mandates that schools provide evidence about the positive personal and societal outcomes linked to following this sequence, as outlined in the bill's preamble. The law applies to the 2025-2026 school year and all subsequent years. This directly affects school curricula and educators responsible for teaching family life education in Tennessee.