It’s become increasingly common for businesses to subcontract workers to perform jobs at a location that is shared with the business or other neutral third parties. When picketing at common job sites shared by the employees of the contractor/employer and the neutral third party, the right of subcontracted employees to engage in collective action at a shared job site must be reconciled with the prohibition on secondary picketing against neutral third parties under the National Labor Relations Act (NLRA). In Service Employees International Union Local 87 v. NLRB (Service Employees International), the Ninth Circuit held that the Board erred in concluding that picketing constituted unlawful secondary picketing where the picketing activity at a shared job site clearly identified the primary employer as the target of the picketing and did not direct coercive activity against neutral third parties.