CRYPTOLOGIC TECHNICIAN (TECHNICAL) (CTT)

OVERVIEW

Cryptologic Technician (Technical) — CTT — is the U.S. Navy's electronic-intelligence (ELINT) and electronic-warfare-support rating. CTTs collect and analyze adversary radar and other non-communications electronic emissions, providing fleet commanders with electronic order-of-battle and threat-warning information.

The cryptologic / information warfare community conducts signals intelligence, cyberspace operations, and electronic warfare for U.S. Cyber Command, the National Security Agency, and Fleet Cyber Command / Tenth Fleet. All cryptologic ratings require a TS/SCI clearance, polygraph eligibility, and intensive language, technical, or analytic training at the Center for Information Warfare Training (CIWT).

A-school for the rating runs ~22 weeks at Center for Information Warfare Training, Corry Station, Pensacola FL, where Sailors complete the technical foundation needed to report to their first fleet command. Entry requires the ASVAB line score VE+AR=109 (TS/SCI required) and an enlistment obligation of 6–6 years. CTTs advance through the standard enlisted paygrade structure (E-1 through E-9), competing in the Navy-Wide Advancement Examination (NWAE) at E-4 through E-6 and via the Selection Board at E-7 through E-9. Senior CTTs typically serve as Leading Petty Officer (LPO), Work Center Supervisor, Leading Chief Petty Officer (LCPO), or Command Master Chief (CMC), and may pursue Limited Duty Officer (LDO), Chief Warrant Officer (CWO), or commissioning programs such as STA-21, MECP, or OCS.

Across the active force, CTT Sailors are essential to the Navy's mission readiness, and the rating remains an in-demand career field with strong reenlistment bonuses (SRB), advancement opportunities, and pathways into Navy Reserve, civilian DoD, and industry careers after service.

WHAT CTTs DO

CTTs operate electronic-warfare-support (ES) systems including the AN/SLQ-32 on surface combatants, conduct ELINT collection and analysis, and produce tactical electronic-warfare reports and indications-and-warning products.

RESPONSIBILITIES

• CTTs operate electronic-warfare-support (ES) systems including the AN/SLQ-32 on surface combatants, conduct ELINT collection and analysis, and produce tactical electronic-warfare reports and indications-and-warning products.
• Stand watches and qualify on the rating's Personnel Qualification Standards (PQS), maintain training jackets, and mentor junior CTTs as required by the chain of command.
• Lead the CTT work center as Leading Petty Officer or Work Center Supervisor — managing maintenance documentation in 3M/MFOM, parts ordering, and personnel qualifications.
• Support general military training (GMT), damage control, force protection, and watch-bill assignments common to every Sailor regardless of rating.

HISTORY

CTT was established in 1976 as the ELINT-specific track within the Cryptologic Technician rating, preserving the technical-collection mission distinct from voice/text collection (CTR) and linguistics (CTI).

The cryptologic community traces to OP-20-G — the Navy's World War II signals-intelligence organization that broke the Japanese JN-25 code and contributed to the victory at Midway. Post-war the community evolved through the Communications Technician (CT) ratings, was reorganized in 1976, and again restructured in 2008 into the modern CTI/CTM/CTN/CTR/CTT specialties under the Information Warfare community.

Today the Cryptologic Technician (Technical) (CTT) rating is overseen by the Enlisted Community Management (ECM) office at My Navy HR and the Center for Personal and Professional Development. Modern CTTs benefit from the Sailor 2025 personnel-system reforms, the Ready Relevant Learning (RRL) training continuum, and credentialing through the Navy COOL program — turning rating qualifications into industry-recognized certifications and licenses.

The rating's structure, training pipeline, and operational employment continue to evolve alongside the Navy's transition to Distributed Maritime Operations (DMO), Project Overmatch, and the Force Design 2045 fleet architecture, ensuring CTTs remain central to the warfighting mission.

TRAINING PIPELINE

1. 1. Recruit Training (Boot Camp)~10 weeks
   Naval Station Great Lakes, IL
   Initial entry training for all U.S. Navy enlisted Sailors at the Navy's only boot camp.
2. 2. Cryptologic Technician (Technical) A-School~22 weeks
   Center for Information Warfare Training, Corry Station, Pensacola FL
   Initial cryptologic rating training for accessions (TS/SCI required)
3. 3. Fleet / Operational TourFirst sea or operational tour
   Surface combatants — AN/SLQ-32 EW operator
   On-the-job training and qualifications in the CTT rating with a fleet unit.

TYPICAL CAREER PATH

1. E-1/E-3
   Apprentice CTT
   A-school in the cryptologic pipeline; first tour with a fleet unit.
2. E-4/E-6
   Petty Officer CTT
   Lead a Cryptologic Technician (Technical) work-center, qualify in core watchstations and platform-specific tasks.
3. E-7+
   Chief Cryptologic Technician (Technical)
   Senior enlisted leader of the rating in the command; instructor, detailer, or department leading chief assignments.

TYPICAL PLATFORMS & UNITS

• Surface combatants — AN/SLQ-32 EW operator
• Submarines (AN/WLR-8 ESM)
• P-8A Poseidon (ELINT augment)

EXAMPLE NECs

• CTT-9189 Electronic Intelligence Operator

RELATED RATINGS

• CTR · Cryptologic & IW
  Cryptologic Technician (Collection)
• FC · General Surface & Combat
  Fire Controlman
• IS · Cryptologic & IW
  Intelligence Specialist

RELATED BASES

• Navy Base · MD
  Fort George G. Meade
• Navy Base · VA
  Naval Station Norfolk
• Navy Base · CA
  Naval Base San Diego

FREQUENTLY ASKED QUESTIONS

SOURCES

• Navy Cryptologic Technician (Technical) (navy.com)
• My Navy HR — Enlisted Community Management
• Navy COOL — Rating Detail