The regulations hereunder are promulgated pursuant to Paragraph 3 and 5, Article 65 of the Telecommunications Management Act (hereinafter as the Act).

Controlled telecommunications radio-frequency devices (hereinafter as “CTRFDs”) refer to those authorized radio frequency devices specified in Paragraph 2, Article 65 of the Act.

CTRFDs shall fall into one of two classes:
1. Class 1 CTRFDs: refers to CTRFDs necessary for establishing a public telecommunications network, a dedicated telecommunications network, or an amateur radio station; CTRFDs designed to restrict mobile communications or drone control signals; or other CTRFDs that require approval for frequency use.
2. Class 2 CTRFDs: refers to the CTRFDs other than those specified in the preceding subparagraph.
The competent authority shall supervise CTRFDs in accordance with the degree of influence on the order of radio waves and shall conduct regular reviews.