The Diablo Canyon Nuclear Power Plant Special Studies Final Report with the Final Assessment including the Addendum, prepared by the Bechtel Power Corporation, together with information for the State Water Resources Control Board’s meeting of November 18, 2014 to consider the results and evaluate the need to modify the Once-Through Cooling Policy, may be reviewed at: The DCISC’s Comments on the Bechtel Report together with its Evaluation, dated September 5, 2013, of safety issues for several alternative cooling technologies may be reviewed at that website with the material for the November 4, 2013, meeting of the Review Committee for Nuclear Fueled Power Plants.

The DCISC approved its Preliminary Evaluation of safety issues for the Addendum to the Final Assessment of Alternate Cooling Technologies or Modifications to Once-Through Cooling at its meeting on October 14, 2014, in Avila Beach, California, and provided its Preliminary Evaluation to the State Water Resources Control Board on October 31, 2014. The Preliminary Evaluation may be reviewed here:
October 17, 2014 DCISC Preliminary Evaluation as PDF.

Acronyms used at Diablo Canyon Nuclear Power Plant (DCPP)

The following alphabetical listing contains abbreviations, acronyms, compound words, technical symbols, and spelling preferred for licensing and other regulatory correspondence.

Ibid. Ibidem (in the same place)
i.e. id est (that is)
id. idem (the same)
ITS important to safety
ITS Improved Technical Specifications
in process
in progress
in situ
in. inch(es)
in. /s inches per second
IDVP Independent Design Verification Program
ISC Independent Safety Committee
ISFSI independent spent fuel storage installation
ITR independent technical reviewer
in-depth (adj), in depth (adv)
IPE individual plant examination
IPEEE individual plant examination for external events
IN information notice
in-house (adj)
in-line (adj)
in-phase (adj)
in-place (adj)
in-plant (adj)
ISI inservice inspection
ILT inservice leak test
IST inservice testing
ID inside diameter
IR Inspection Report (NRC)
IEEE Institute of Electrical and Electronics Engineers
INPO Institute of Nuclear Power Operations
I&C instrumentation and controls
ISA Instrument Society of America
intake structure
ICS integrated communications system
IIT Integrated Inspection Team
ILRT integrated leak rate test
ILS integrated living schedule
IPAP integrated performance assessment process (NRC)
ISAP Integrated Safety Assessment Program
inter alia (among other things)
IDAP Inter-Departmental Administrative Procedure
IGA intergranular attack
IGSCC intergranular stress corrosion cracking
ICRP International Commission on Radiation Protection
SI International System of Units (Standard International)
IOM interoffice memorandum
INVDIO issue needing validation to determine its impact on operability

For more information about DCISC contact:

Diablo Canyon Independent Safety Committee
Office of the Legal Counsel
857 Cass Street, Suite D, Monterey, California 93940
Telephone: in Califonia call 800-439-4688; outside of California call 831-647-1044
Send E-mail to: