The final employer mandate rules released on February 10, 2014, require large employers to comply with shared responsibility requirements starting January 1, 2015, with various provisions for transition relief and clarification on employer obligations. Key changes include enforcement delays for mid-sized employers, updates on minimum essential coverage criteria, and calculations for full-time employee status. Employers must also navigate penalties related to coverage offerings and employee classifications while facing new rules regarding multi-employer plans, dependent coverage, and the counting of employees.