### Question
How does the law define line?


### Answer
Under *47 U.S.C. § 214*, **line** is defined as:

> any channel of communication established by the use of appropriate equipment, other than a channel of communication established by the interconnection of two or more existing channels: *Provided, however*, That nothing in this section shall be construed to require a certificate or other authorization from the Commission for any installation, replacement, or other changes in plant, operation, or equipment, other than new construction, which will not impair the adequacy or quality of service provided

#### Citation:
  - *47 U.S.C. § 214*
  - Heading: **CHAPTER 4-RADIO ACT OF 1927 > SUBCHAPTER II-COMMON CARRIERS > Part I-Common Carrier Regulation**

