The National Secular Association is an organization that promotes secularism and advocates for the separation of religion from government. It aims to ensure that public policies and laws are based on reason and evidence rather than religious beliefs. The association works to protect the rights of individuals to practice their beliefs freely while also supporting a secular public sphere. Founded in the United States, the National Secular Association engages in educational efforts, public outreach, and advocacy. It collaborates with other organizations and individuals who share similar goals, such as promoting freedom of thought and human rights.