Document: NRC Regulatory Guide
Document ID: e7cef6d0-2869-4d77-9a08-126120ae6043
Document Type: regulatory_guide
Title: Fuel Oil Systems for Emergency Power Supplies + HISTORY – HISTORY 06/2012 – DG-1282 , Proposed Revision 2 Prior to the issuance of DG-1282, RG 1.137 was entitled "Fuel –Oil Systems for Standby Diesel Generators (Rev. 2)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML1210/ML121090447.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.137
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CFR Title: 

Content:
nts” (10 CFR Part 52) (Ref. 2) that the Office of Management and Budget (OMB) approved under OMB control numbers 3150-0011 and 3150-0151, respectively. The NRC may neither conduct nor sponsor, and a person is not required to respond to, an information collection request or requirement unless the requesting document displays a currently valid OMB control number. This DG-1282, Page 2 regulatory guide is a rule as designated in the Congressional Review Act (5 U.S.C. 801-808). However, OMB has not found it to be a major rule as designated in the Congressional Review Act. B. DISCUSSION Reason for Change Revision 1 of regulatory guide 1.137 was issued in 1979 to endorse the guidance in American National Standards Institute (ANSI) Standard ANSI N 195-1976, “Fuel Oil Systems for Standby Diesel- Generators” as a method acceptable to the NRC staff for complying with the Commission’s regulations regarding fuel oil systems for standby diesel generators and assurance of adequate fuel oil quality. The ANSI standard was revised in 1989 to: (1) conform to revisions of ANSI/ANS-51.1, “American National Standards Nuclear Safety Criteria for the Design of Stationary Pressurized Water Reactor Plants,” (now withdrawn) and ANSI/ANS-52.1, “Nuclear Safety Criteria for the Design of Stationary Boiling Water Reactor Plants,” (now withdrawn); and (2) to resolve comments from previous ballots issued in 1982 for reaffirmation, in 1985 for withdrawal, and then in 1986 for reaffirmation. The standard underwent revision again in 1997 as ANSI/ANS-59.51-1997, “Fuel Oil Systems for Safety-Related Emergency Diesel Generators,” with reaffirmation in October 2007 (Ref. 3). However, the 2007 reaffirmation did not verify the contemporary practices or standards, and it is therefore incumbent on the user to verify the validity of the reference standards. Revision 2 of regulatory guide 1.137 is being issued to endorse portions of the updated industry consensus standards in ANSI/ANS