49 CFR § 213.355 - Frog guard rails and guard faces; gage.
---
identifier: "/us/cfr/t49/s213.355"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 213.355 - Frog guard rails and guard faces; gage."
title_number: 49
title_name: "Transportation"
section_number: "213.355"
section_name: "Frog guard rails and guard faces; gage."
chapter_name: "FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
part_number: "213"
part_name: "TRACK SAFETY STANDARDS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 20102-20114 and 20142; 28 U.S.C. 2461 note; and 49 CFR 1.89."
regulatory_source: "63 FR 34029, June 22, 1998, unless otherwise noted."
cfr_part: "213"
---
# 213.355 Frog guard rails and guard faces; gage.
The guard check and guard face gages in frogs shall be within the limits prescribed in the following table—
| Class of track | Guard check gage | Guard face gage |
| --- | --- | --- |
| Class 6, 7, 8 and 9 track | 4′6⁄″ | 4′5″ |
| A line along that side of the flangeway which is nearer to the center of the track and at the same elevation as the gage line. | | |
| A line five-eighths of an inch below the top of the center line of the head of the running rail, or corresponding location of the tread portion of the track structure. | | |
[78 FR 16112, Mar. 13, 2013]