Highline College has open admissions, meaning most applicants aged 18 or older with a high school diploma or GED are eligible. International students must demonstrate English proficiency via tests like TOEFL or IELTS. Running Start students (high school juniors/seniors) need a minimum 2.0 GPA and parental consent. Undocumented students may apply under Washington’s HB 1079 policy. Some programs (e.g., nursing) have additional requirements like prerequisite courses or placement tests. Veterans and homeschooled students follow standard admission processes with relevant documentation.