49 C.F.R. § 236.820a Switch, power-operated.
Title 49 - Transportation
A switch operated by an electrically, hydraulically, or pneumatically driven switch-and-lock movement. [49 FR 3388, Jan. 26, 1984]
Title 49: Transportation
PART 236—RULES, STANDARDS, AND INSTRUCTIONS GOVERNING THE INSTALLATION, INSPECTION, MAINTENANCE, AND REPAIR OF SIGNAL AND TRAIN CONTROL SYSTEMS, DEVICES, AND APPLIANCES
Subpart G—Definitions
§ 236.820a Switch, power-operated.