School uniforms and dress codes are hotly debated throughout the United States. School uniform policies require students to wear special clothing to school. School uniforms are most commonly seen in private schools, but are becoming more common in public schools. Uniforms come in many styles and colors. They range from plaid skirts and white blouses, to tan shorts and white polo shirts. Sometimes schools even require shoes and socks of a certain color. Supporters of school uniforms believe that uniforms create safer schools, increase positive behavior, and lead to unity within schools. School dress codes on the other hand, do not require particular colors or styles. Dress codes seek to create a positive learning environment by limiting what a student can wear to school. For example, many dress codes prohibit students from wearing extremely short skirts, tank tops, and any clothing that expresses inappropriate language or pictures. In public schools, dress codes and uniforms are determined by the school or by the community. Parents, teachers, and administrators usually work together to determine dress code policies. Many opponents of uniforms and dress codes believe they limit students’ freedom of expression.