The purpose of this legislation is to expand the types of educational expenses that can be covered by 529 accounts, which are tax-advantaged savings plans designed to help families save for education costs. Specifically, it aims to include expenses related to postsecondary credentialing programs, making it easier for individuals to pursue vocational training and certifications that enhance their job prospects. Key provisions of the legislation include defining what qualifies as postsecondary credentialing expenses.