49 C.F.R. § 236.527 Roadway element insulation resistance.
Title 49 - Transportation
Insulation resistance between roadway inductor and ground shall be maintained at not less than 10,000 ohms. [49 FR 3386, 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 E—Automatic Train Stop, Train Control and Cab Signal Systems
Rules and Instructions; Roadway
§ 236.527 Roadway element insulation resistance.