South Dakota Administrative Rules
Title 61 - Department of Public Safety
Article 61:08 - Boilers
Chapter 61:08:09 - Historic power boilers
Section 61:08:09:40 - Minor repairs

(1) Replacement of boiler flues, pipe, and pipe fittings;

(2) The welding of nonpressure attachments to the pressure vessel when the procedure does not involve any removal or undercutting of the metal;

(3) Repairs to threaded openings in the boiler, provided that the procedure does not require removing more metal than would be necessary to accommodate the next larger size pipe;

(4) Seal welding on staybolts; and

(5) Installation of doughnuts to repair threaded openings.

Documentation of minor repairs must be provided to the inspector at the next regularly scheduled inspection.