GroundRules
49 CFR 230.58: Flue plugs.
Where this section sits in the code
- Title 49—Transportation
- Subtitle B—Other Regulations Relating to Transportation
- CHAPTER II—FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
- PART 230—STEAM LOCOMOTIVE INSPECTION AND MAINTENANCE STANDARDS
- Subpart B—Boilers and Appurtenances
(a) When plugging is permitted. Flues greater than 2 1/4 inches in outside diameter (OD) shall not be plugged. Flues 2 1/4 inches in outside diameter (OD) or smaller may be plugged following failure, provided only one flue is plugged at any one time. Plugs must be removed and proper repairs made no later than 30 days from the time the plug is applied.
(b) Method of plugging. When used, flue plugs must be made of steel. The flue must be plugged at both ends. Plugs must be tied together by means of a steel rod not less than 5/8 inch in diameter.
Collected 2026-08-27T02:26:34Z. Source file · JSON