scope:

a) This part provides requirements and guidelines that apply when performing repairs and alterations to pressure-retaining items.

b) The National Board administers three specific accreditation programs:

1) "R" - Repairs and Alterations to Pressure-Retaining Items

2) "NR" - Repair and Replacement Activities for Nuclear Items

3) "VR" - Repairs to Pressure Relief Valves

c) This part describes some of the administrative requirements for the accreditation of repair organizations. Additional administrative requirements can be found in:

1) NB-415, Accreditation of "R" Repair Organizations

2) NB-417, Accreditation of "NR" Repair Organizations

3) NB-514, Accreditation of "VR" Repair Organizations

d) Requirements for repairs to pressure relief valves can be found in NBIC Part 4.