Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym EFSEC is...

EFSEC is

  • Energy Facility Site Evaluation Council (Washington)

EFSEC is also in:

Acronym Definition Searched: RTFP ECCS SWIM ASLAP TTL NO2 WQRT OTTOMH TNT DCG QOP QBD DEPT FRAS WIGP