The WGA script registration service is a service run by both the Writers Guild of America, East (WGAE) and the Writers Guild of America West (WGAW) to establish the date of creation of literary property, typically a motion picture screenplay, useful in the often-contentious US entertainment field.
The service supports the WGA screenwriting credit system but is also available for non-members to use.
This is one of the distinctions that makes the WGAE and WGAW true guilds and not simply a trade union bargaining for existing members.
Additionally, an official copyright registration with the US Library of Congress is required to invoke the jurisdiction of US federal courts, where most copyright infringement claims are adjudicated.
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