PURPOSE: This rule prescribes the use, specifications and maintenance of reflectorized targets and lenses used as track switch position indicators.

1. (1) Railroads operating within Missouri are authorized to substitute for oil lamps on main line switches either reflectorized lenses or reflectorized targets in accordance with the provisions of this rule.
2. (2) Any railroad desiring to use reflectorized lenses or reflectorized targets as substitute for oil lamps shall give notice, in writing, to the Division of Motor Carrier and Railroad Safety at least thirty (30) days prior to their installation, describing the section of track and location of the proposed reflectorized lenses and reflectorized targets. In the letter of notification, the railroad shall describe the topography, grade and track configuration at the switch location in order that a determination can be made as to whether the locomotive headlights will shine on the lenses or targets at a sufficient distance to provide reasonable and safe visibility for the train crew members. The division, without a hearing, shall determine immediately if it will permit this use and shall transmit its written approval to the applicant railroad, which shall then make the installation.
3. (3) Those railroads now having specific approval from this division for the installation and use of the reflectorized targets or lenses shall be considered to have complied with this rule as long as the installation and use of the reflectorized targets and lenses complies with the specifications and requirements contained in this rule.

4. (4) If reflectorized targets are substituted for oil-burning lamps on main lines covered by the requirements of section 389.710, RSMo, they shall meet the following specifications:

   1. (A) They shall be mounted to show a red aspect whenever the switch is lined against the main line;
   2. (B) The red aspects shall be at least one hundred ten (110) square inches in area; except that every switch target that is first installed in this state after the effective date of this rule shall have red aspects, each of which is not less than one hundred forty

5. (140) square inches in area; and any switch target that is already in service on the effective date of this amendment shall be retrofitted not later than January 1, 2001, or if it is replaced or altered before January 1, 2001, then it shall be retrofitted when it is replaced or altered, so that each red aspect is not less than one hundred forty (140) square inches in area; and

   1. (C) The additional requirements set forth in 4 CSR 265-8.018.

6. (5) If reflectorized lenses are to be substituted for the oil-burning lamps on main lines covered by the requirements of section 389.710, RSMo, they shall meet the following specifications:

   1. (A) They shall be mounted to show a red aspect whenever the switch is lined against the main line;
   2. (B) Each aspect shall be at least four and five-eighths inches (4 5/8") in diameter or seventeen and two-thirds (17 2/3) square inches in area;
   3. (C) The lenses shall be sealed against dust and moisture by a smooth plastic covering; and
   4. (D) The additional requirements set forth in 4 CSR 265-8.018.

AUTHORITY: section 622.027, RSMo Supp. 1997.* Emergency rule filed June 14, 1985, effective July 1, 1985, expired Oct. 28, 1985. Original rule filed Aug. 1, 1985, effective Oct. 29, 1985. Amended: Filed May 2, 1991, effective Dec. 9, 1991. Amended: Filed June 22, 1998, effective Feb. 28, 1999. *Original authority: 622.027, RSMo 1985, amended 1993, 1995.