Colorado Code
Article 29 - Safety Appliances
§ 40-29-101. Switch Lights

Any railroad or railway company owning or operating within this state any line or branch of railroad connecting with any main line of railroad by means of a switch shall provide such switch with a reflector signal or with a suitable light such as is commonly used for such purposes and, if a light is provided, shall keep the same lighted from sunset on each and every calendar day of the year until sunrise on the following day.
Source: L. 03: p. 405, § 1. R.S. 08: § 5504. C.L. § 2882. CSA: C. 139, § 68. L. 45: p. 545, § 1. CRS 53: § 116-10-1. C.R.S. 1963: § 116-10-1.