In the context of union labor disputes covered under the National Labor Relations Act (NLRA), a workplace location, facility or site shared by multiple employers including at least one primary employer and at least one neutral employer.

Property owners and worksite managers at a common situs can confine union strikes or pickets against primary employers to particular locations by setting up a reserve gate system. For more information, see Standard Document, Reserve Gate Guidelines.

For more information about union picketing and strikes, see Practice Notes, Employee Rights and Unfair Labor Practices under the National Labor Relations Act and Labor Law: Overview.