CTRFDs shall be approved prior to being imported. However, any of the following circumstances shall be considered as not imported:
1. Domestic manufacturing that is re-imported (returned) and imported after export.
2. Imported from abroad to the business within the tax-free processing export zone approved by the government, to the business within the bonded area of the science and industrial park, to the business within the bonded area of the agricultural science and technology park, to the port area business in the free trade port area, and to the bonded factories, bonded warehouses, logistics centers and outlying island duty-free shopping stores managed by customs.
CTRFD entering other areas of the Republic of China (Taiwan) from the businesses, factories, warehouses, logistics centers, and duty-free shopping stores listed in subparagraph 2 of the preceding Paragraph shall be handled in accordance with Article 7 or Article 9. However, this shall not apply to those that have been verified and certified.

Applicants applying to import Class 1 CTRFDs shall submit the Application form of CTRFD Import Approval Certificate (Table 2) and any of the following documents to the competent authority when applying for the import approval certificate:
1. Approval document for the network establishment plan.
2. Approval document for the establishment of radio station、 radio station installation license.
3. Approval document for the CTRFD Use Plan.
Applicants may apply for import approval certificates in stages using the approval document for the network establishment plan, the approval document for the establishment of radio station, the radio station installation license, or the approval document for the CTRFD Use Plan. The total quantity of equipment covered by the import approval certificates shall be limited to the quantity specified in the approval document for the network establishment plan, the approval document for the establishment of radio station, the radio station installation license, or the approval document for the CTRFD Use Plan.

The approval document for the CTRFD Use Plan, as specified in Subparagraph 3 of Paragraph 1 of the preceding article, shall be submitted by the applicant along with the following documents to the competent authority:
1. Application letter.
2. CTRFD Use Plan.
3. Proof of establishment for a juristic person or unincorporated organization (not required for government agencies or organizations).
4. Other documents as designated by the competent authority.
The CTRFD Use Plan mentioned in the preceding paragraph shall include the following information:
1. Area of use.
2. Purpose of use, including methods of use, duration, and plan.
3. The brand, model, specifications, appearance, and quantity of the device, as well as the name and nationality of the manufacturer.
4. The frequency, bandwidth, transmission power, effective coverage of radio waves, and a georeferenced topographic map or electronic map.
5. Necessary anti-interference plan.
6. Device disposal plan, such as re-export or destruction under surveillance.
7. For CTRFDs designed to restrict mobile communications or drone control signals, internal control mechanisms must be specified. This includes, but is not limited to, operator training plans and internal reporting/control procedures before and after use.
The purpose of use specified in Subparagraph 2 of the preceding paragraph shall be limited to the following:
1. For a public telecommunications network or a dedicated telecommunications network.
2. For foreign sea vessels or sea vessels for export.
3. For research and development, testing, or demonstration.
4. Not manufactured domestically and to be re-imported (returned) after export.
5. For inspection.
6. For export after processing, maintenance, or assembly.
7. For no more than two private mobile amateur radio stations.
8. For marine radio stations intended for sale.
9. For maintaining national security, public safety, or public interests, or for the protection of national critical infrastructure.
Where the import is for the purposes specified in Subparagraphs 2, 6, or 8 of the preceding paragraph, the CTRFD Use Plan may be exempt from including the following requirements from Paragraph 2: the area of use (Subparagraph 1); the use duration and plan (Subparagraph 2); the effective coverage of radio waves and a georeferenced topographic or electronic map (Subparagraph 4); and the necessary anti-interference plan (Subparagraph 5).
Devices imported for the purposes specified in Subparagraph 9 of Paragraph 3 shall be classified as CTRFDs designed to restrict mobile communications or drone control signals. Accompanying the application, the applicant must submit one of the following documents:
1. Documents certifying that the device is for the use of an agency (organization) responsible for maintaining national security, public safety or public interests, or protecting national critical infrastructure.
2. Documents certifying that the applicant has been notified by the competent industry authority as a provider of national critical infrastructure.
3. Documents certifying that the applicant has been designated by the competent industry authority as the installer of national critical telecommunications infrastructure.

Applicants that apply for the import of Class 2 CTRFDs shall attach Application for CTRFD Import Permit (Table 3) and related documents (Table 4) for the import approval certificate of CTRFD according to their use and shall apply to the competent authority for the import approval certificate:
1. Mobile satellite earth stations for telecommunication services or fixed satellite earth stations with antenna diameters less than three meters.
2. Non-domestic-manufactured CTRFDs that will be re-imported (returned) after export.
3. CTRFDs for inspection, each imported with less than ten models of the same brand.
4. CTRFDs for research and development, testing or demonstration.
5. CTRFDs exclusively for export after processing, maintenance or assembly.
6. Except for mobile satellite earth stations and fixed satellite earth stations with antenna diameters less than three meters, wireless telecommunication terminal equipment or low-power radio frequency equipment for personal use.
7. For foreign ships or ships for export.
8. CTRFDs specified in the project approval document.
The devices in subparagraph 6 of the preceding Paragraph shall be for the applicant’s own use only, and cannot be transferred or used for other commercial purposes. The import quantity shall be limited to as follows:
1. Those that bring in by themselves: no less than six and no more than ten.
2. Those that send in by mail: no less than three and no more than ten.
3. For the same natural person or judicial person, the number shall be limited to ten within one year. Among them, natural persons must be over 18 years old.
The import quantity in the subparagraph 6, Paragraph 1 can be imported for personal use with an Affidavit, and the import approval certificate shall be exempt:
1. For those that bring in devices by themselves: no more than five devices at a time.
2. For those who send in by mail or by other non-self-carrying methods: no more than two devices.
3. For the same natural person or judicial person, the number shall be limited to ten within one year. Among them, natural persons must be over 18 years old.

Those that have obtained a certificate of special permit number for importing controlled telecommunication radio-frequency devices (hereinafter referred to as the certificate of special permit number) may import Class 2 CTRFDs for research, development and testing purposes.
The certificate of special permit number shall be valid for two years and shall be divided into five levels according to the allowed number of imports as follows:
1. Level 1 certificate of special permit number: More than 2,000 imports within the validity of the certificate of special permit number;
2. Level 2 certificate of special permit number: Between 1,000 and 2,000 imports within the validity of the certificate of special permit number;
3. Level 3 certificate of special permit number: Between 500 and 1,000 imports within the validity of the certificate of special permit number;
4. Level 4 certificate of special permit number: Between 250 and 500 imports within the validity of the certificate of special permit number;
5. Level 5 certificate of special permit number: Less than 250 imports within the validity of the certificate of special permit number.
With respect to CTRFDs that are imported in accordance with Paragraph 1, the number of imported devices of the same models shall be limited to 750 only and the entity that acquires the certificate of special permit number shall be liable for the safekeeping of devices.
The competent authority may, on a random basis, dispatch personnel to inspect the use and status of CTRFDs imported in accordance with Paragraph 1.

Those that comply with provisions specified in the following subparagraphs may select one of the five levels prescribed in Paragraph 2 of the preceding article, and apply for a certificate of special permit number to the competent authority:
1. During the most recent two years, have obtained more than 50 import approval numbers from the competent authority each year on average; or, during the most recent two years, has been recognized by the Ministry of Economic Affairs as an excellent manufacturer and have obtained more than 30 import approval numbers from the competent authority each year on average.
2. During the most recent two years, have not been subject to punitive measures by the competent authority due to the violation of Paragraph 1 or 2 of Article 25.
Those that obtained the certificate of special permit number and comply with provisions of the following subparagraphs may, within two months from the three months prior to the expiry of the certificate, apply for reissuing the certificate of special permit number to the competent authority:
1. Devices imported during the validity of the certificate of special permit number over the last four years have been well-managed internally without any incidents of missing or stolen items.
2. According to the inspection conducted by the competent authority in accordance with Paragraph 4 of the preceding article, all devices are within the office or factory location. Nevertheless, this shall not apply to the condition where the devices have been re-exported and the applicant provides a photocopy of customs export certificate or the evidence of re-export.
Those that apply for a certificate of special permit number shall submit the following documents to the competent authority:
1. Device management plan
2. A list of import approval certificates issued by the competent authority during the most recent two years and documents that prove the competent authority agreed to remove the device control; or the management records of devices imported in accordance with Paragraph 1 of the preceding article during the validity of certificate of special permit number during the most recent four years (including the item name, quantity, use and direction of flow).
3. A list of testing personnel of the applicant, research plan, records or reports of the previous year demonstrating the research and development and testing capacity of the applicant.

Where those that obtained a certificate of special permit number in accordance with the preceding article fall under any of the following circumstances, the competent authority may abolish the certificate thereof:
1. The management status of the device differs from the management plan proposed during an inspection conducted by the competent authority in accordance with Paragraph 4 of Article 10.
2. A penalty has been imposed thereon by the competent authority in accordance with Subparagraph 6 of Paragraph1 of Article 80 of the Regulations.
Manufacturers whose certificate has been abolished by the competent authority in accordance with the preceding paragraph shall, within two years upon the abolishment date, re-export the CTRFD imported with the certificate or apply for destruction to the competent authority.
Manufacturers whose certificate has been abolished by the competent authority in accordance with Paragraph 1 shall not apply for a certificate of special permit number within three years upon the abolishment date.

When importing wireless telecommunication terminal equipment, Personal Locator Beacons (PLB), Survivor Locating Devices (MSLD), low-power radio frequency equipment or amateur radio stations that have passed the inspection, the import may be processed with the verification certificate.

Those CTRFDs applicable to temporary customs clearance regulations for goods, after having been approved for import by the competent authority may be exempt from applying for an import approval certificate, and shall be re-exported within the prescribed time limit in accordance with relevant provisions of temporary clearance.

When a ship or aircraft carries imports from overseas, the CTRFD installed in the vessel shall be exempt from applying for an import approval certificate, but should apply for a radio station license in accordance with relevant laws and regulations.

Foreign nationals that have obtained visa-free entry or possess a diplomatic visa, courtesy visa or visitor visa shall be eligible to import a mobile satellite earth station for private use without applying for an import approval certificate.
The foreign national prescribed in the preceding paragraph shall be eligible to import only one mobile satellite earth station for private use.

International rescue teams, foreign governments, and private rescue organizations that carry disaster relief CTRFDs for the purpose of emergency disaster relief or time-sensitive disaster drills when entering our country may declare the goods for customs clearance using a special code exclusively for rescue personnel. In such cases, they shall be exempt from applying for import approval documents or an import approval certificate.
The special code exclusively for rescue personnel, as described in the preceding paragraph, shall be announced separately by the competent authority.

When an applicant applies for an import approval certificate, if the validity period specified in the approved network setting approval document, radio station setting approval document, the CTRFD Use Plan approval document, or the project approval document differ, they shall be applied for separately.

The validity period of the import approval certificate shall be one year, and each certificate shall be limited to one use. If necessary, an extension can be applied for one year prior to the expiration of the period, and the extension shall be limited to once only. However, the validity period of the import approval certificate shall not exceed the validity period of the installation permit or related approval documents.
Should the import approval certificate be lost of misplaced, the application form shall be submitted to competent authority for re-issuance.
When the information of import approval certificate is changed, the application form shall be submitted for replacement.

The special code for radio-frequency devices as exemption from import approval certificate shall be announced by the competent authority separately.