### Question
How does the law define dark territory?


### Answer
Under *49 U.S.C. § 20164*, **dark territory** is defined as:

> any territory in a railroad system that does not have a signal or train control system installed or operational

#### Citation:
  - *49 U.S.C. § 20164*
  - Heading: **SUBTITLE V-RAIL PROGRAMS > PART A-SAFETY > CHAPTER 201-GENERAL > SUBCHAPTER II-PARTICULAR ASPECTS OF SAFETY**

