The Regulations are stipulated pursuant to the 2 paragraph of Article 42 of the Telecommunications Act.

The terms of these Regulations are defined as follows:
1. Telecommunications Terminal Equipment：
The Telecommunications Terminal Equipment (hereinafter as TTE) mentioned herein shall refer to any digital or analog equipment that interfaces with the end point of the Public Switched Telecommunications Network (hereinafter as PSTN) by using wireless or wired transmission m media and conducts communications by means of optical or electromagnetic wave.
2. Type Approval：
It means a procedure which manufacturers, importers or distributors apply to the National Communications Commission (hereinafter as NCC) or recognized certification bodies by NCC for compliance approval submitted in respect of TTE’s brand name and model number. (The two nouns, NCC and certification bodies, hereinafter would be abbreviated as RCB in the Regulation.)
3. Declaration of Conformity (hereinafter as DoC)：
It means a procedure that manufacturers, importers or distributors declare the TTE in comply with Article 5 of the Regulations and prepare related documents to RCB for registration.
4. Product of Family Series：
It means the TTE sample submitted for type approval has the same technical specifications, design and characteristics with the certified TTE in respect of network interface, EMC and electrical safety, that is, the so-called product of family series has the same output power, modulation technique, operating frequency, channel numbers, printed circuit board layout without component changes, size, shape and material of enclosure as the certified TTE.

For the connection of the approved TTE, unless with proper reason, Type I telecommunications enterprises may not impose any discriminatory treatment with respect to the condition and quality of connection.

TTE connected to the telecommunications network facilities installed by Type I telecommunications enterprises shall comply with the relevant technical specifications and shall be certified and approved prior to import or sale.
The relevant TTE technical specifications shall be formulated and announced in public by the National Communications Commission (hereinafter as NCC).
The aforementioned technical specifications shall not only contain test items and standards, but also ensure the following:
1. The connection should not damage telecommunications network facilities of Type I telecommunications enterprises, or malfunction the said facilities.
2. Any nuisance shall not be caused to other users of the telecommunications network facilities ofType I telecommunications enterprises.
3. The demarcation of responsibility between the telecommunications network facilities of Type I telecommunications enterprises and the terminal equipment connected by users shall be clearly clarified.
4. The connection of TTE shall ensure it is normally interfaced with the telecommunications network facilities of Type I telecommunications enterprises.
5. Ensure Electro-Magnetic Compatibility (hereinafter as EMC) to harmonize and effective use of the radio spectrum.
6. Ensure electrical safety to prevent harm to network operator personnel or users.
The test items relating to EMC and electrical safety of TTE and date of enforcement shall be announced by NCC.

TTE shall comply with the test items and standards as specified in the relevant technical specifications where the test items and standards are not available, testing shall be performed in accordance with the following order:
1. National standards(CNS).
2. Standards specified by the international standard organization.
3. Standards specified by the regional standard organization.

TTE connected to the telecommunications network facilities installed by Type I telecommunications enterprises shall be tested subject to the test items and standards specified in the relevant technical specifications stipulated in Article 4 of the Regulations. In addition, if Type I telecommunications enterprises need to add other test items and standards to meet their requirements of connection, the additional test items and standards shall be submitted to NCC for approval in advance.

To apply for compliance approval, TTE may be classified as "sale use" and "private use" on the use basis.
The application for type approval or DoC approval with regard to "sale use" TTE shall be submitted by its manufacturer, importer or distributor.
The application for private approval with regard to "private use" TTE shall be submitted by the individual, incorporate or non-incorporate organizations.