For significant market powers in a specific telecommunications service market designated according to Article 27 and 28 of the Act, the competent authority may enforce necessary special control measures.
In the case aforementioned in the preceding paragraph, the competent authority shall provide public consultation documents to explain the certification of significant market powers and configuration of special control measures to be taken, and organize a public hearing to compile feedback from the parties and stakeholders concerned prior to the measures being enforced.
The consultation results shall be in principle public; however, this does not apply when business confidentiality or official secrets are involved.

The competent authority shall perform a review procedure every three years to review the scope of specific telecommunications service market defined pursuant to Paragraph 3, Article 27 of the Act.
In the case aforementioned in the preceding paragraph, the telecommunications enterprise informed by the competent authority shall submit the relevant information by the given deadline.
The competent authority shall examine the definition of specific telecommunications service market based on the information provided in the preceding paragraph, and organize a public hearing to compile feedback from the parties and stakeholders concerned.

Significant market powers may apply to the competent authority for decertification of significant market power along with relevant information for justification.
Should the application aforementioned in the preceding paragraph, after review by the competent authority, be determined to be incomplete or that more information is required for justification, the applicant shall be required to undertake corrective action within a prescribed period of time. Failure to undertake correct action may result in the application’s rejection.