Basic Libertarian Party membership is free for everyone who embraces the non-aggression principle. 

Just check the box, add your contact information, and you’re instantly a basic member.
I hereby certify that I oppose the initiation of force as a means of achieving political or social goals. 
This principle is why the Libertarian Party calls itself the Party of Principle. All libertarian positions derive from it. If you have donated $25 or more in the past 12 months, or do so now, agreeing to the principle also makes you a dues-paying member, eligible to participate in party business such as conventions. Click here to donate if you want to upgrade from free basic to a dues-paying membership. Welcome to the team!