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
	incore
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-leakage
	in-line (adj)
	in-phase (adj)
	in-place (adj)
	in-plant (adj)
	inservice
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
	intertidal
	isophase
INVDIO	issue needing validation to determine its impact on operability