The provisions of Article 20 of the Employment Security Act apply mutatis mutandis to worker dispatching services. In that case, in paragraph (1) of that Article, the phrase "public employment security office" is deemed to be replaced with "staffing provider prescribed in Article 2, item (iv) of the Act on Ensuring the Proper Operation of Worker Dispatching Services and Protecting Dispatched Workers (simply referred to below as a "staffing provider")" and the phrase "must not refer a job seeker to a place of business" is deemed to be replaced with "must not engage in worker dispatching prescribed in item (i) of that Article with regard to the place of business (simply referred to below as "worker dispatching") (if worker dispatching is actually carried out for the place of business at the time of the strike or lock-out, excluding that worker dispatching and any equivalent arrangement)"; in paragraph (2) of that Article, the phrase "unrestricted referral of job seekers" is deemed to be replaced with "unlimited worker dispatching", the phrase "the public employment security office must not refer job seekers to that place of business" is deemed to be replaced with "the public employment security office must notify the staffing provider of this, and the staffing provider, having received the notification, must not provide worker dispatching for that place of business (if worker dispatching is being provided for that place of business at the time of the notification, excluding the relevant worker dispatching and any equivalent arrangement)", the phrase "workers normally employed" is deemed to be replaced with "workers (including workers having been engaged in work under a worker dispatching arrangement) normally employed", and the phrase "referring workers" is deemed to be replaced with "providing dispatched workers".