NDT Training in Groton, CT — Online & Onsite ASNT Courses

NDT training in Groton: how it works for Groton employers and technicians

Short answer: Atlantis NDT delivers ASNT SNT-TC-1A NDT training for Groton and southeastern Connecticut employers and technicians at Level I, II and III in UT, PAUT, TOFD, RT, MT, PT, VT and ET. Theory runs live online or in arranged classroom sessions; practical training runs onsite at your facility under ASNT Level III oversight. Your employer certifies you against its written practice. Atlantis has no training centre in Groton. Quotes are on request.

Groton's NDT market is dominated by submarine construction, and that shapes everything about how technicians are trained and qualified here. Naval shipbuilding work is governed by NAVSEA technical publications, among them the NDT requirements document T9074-AS-GIB-010/271, the fabrication and welding requirements of NAVSEA Technical Publication 250-1500-1 for certain systems, and MIL-STD-2035 acceptance criteria. Those requirements sit on top of the employer's certification scheme and are managed by the shipyard and its Level IIIs.

Around the shipyard sits a wider market that works to commercial codes: fabrication and machining suppliers, marine and dock contractors on the Thames River, a nuclear power station just over the river in Waterford, the offshore wind activity at New London's State Pier, bridge and transport work along I-95, and inspection companies serving all of it. Atlantis trains to ASNT SNT-TC-1A, which is the base many of these employers use and which gives new technicians the method knowledge a shipyard will build on. Request a Groton training quote.

ASNT Level I, II and III courses available in Groton

All courses are available as live online theory plus onsite practical at your facility, with Level III-reviewed content aligned to SNT-TC-1A. For shipyard suppliers, the training forms the knowledge base; any NAVSEA-specific qualification and examination remains with the employer's program.

For anyone targeting shipbuilding work in Groton, VT discipline, MT, PT, UT and RT on welds are the core. Power-plant and outage work adds ET on tubing and advanced UT. Candidates who want to move into procedure writing and qualification can prepare with ASNT Level III training.

SNT-TC-1A certification path in Groton, step by step

1. Employer written practice. The employer defines training and experience hours, examinations, vision testing, the responsible Level III, recertification and record-keeping. Shipyard and defence-supplier programmes add their own naval requirements. See written practice development.
2. Classroom training hours by method and level. Recommended minimums are in the training requirements matrix; naval and customer requirements may be stricter.
3. On-the-job experience, supervised and documented on real production or field work.
4. General examination on method theory.
5. Specific examination on the employer's procedures, equipment and acceptance criteria, whether commercial codes such as ASME Section V and AWS D1.1 or naval standards applied by the customer.
6. Practical examination on real specimens, administered and graded under a Level III.
7. Vision examination for near-vision acuity and colour contrast, at the interval the written practice sets.
8. Employer certification when the file is complete.
9. Recertification at the specified interval by examination or evidence of continued satisfactory performance.

More detail: SNT-TC-1A training and certification.

Online, live-virtual or onsite NDT training for Groton crews

Atlantis has no training centre in Groton, New London or anywhere in Connecticut. What we offer:

• Live online theory for classroom hours, scheduled around shifts. Shipyard-area work often runs multiple shifts, so evening and split sessions are common. See NDT training online.
• Onsite practical at your facility, using your equipment and specimens, so that controlled or sensitive hardware and information stay on your premises and under your security rules.
• Classroom cohorts arranged at your site or an agreed venue when a group forms.
• Corporate programmes that combine training, examinations and Level III support; see corporate NDT training.

Scheduling follows the local work pattern: production schedules at fabrication suppliers, refuelling outages at the nuclear station, the offshore wind construction season, and state bridge work in the warmer months. Ask about onsite training for your Groton crew; cohort and onsite quotes are normally returned within one business day.

A note on clearances: many roles at the shipyard and naval base require US citizenship and a security clearance, which are employer and government matters. Training does not confer clearance, and we do not need access to classified information to train your technicians in NDT methods.

Where NDT technicians work in Groton

• Submarine construction. General Dynamics Electric Boat's Groton yard, with its Quonset Point, Rhode Island facility, builds Virginia-class and Columbia-class submarines. Weld and material inspection runs through VT, MT, PT, UT and RT under NAVSEA requirements, with the shipyard's own qualification programme.
• Naval Submarine Base New London. Maintenance, facilities and pier infrastructure work on the base, carried out by government and contractor personnel.
• Defence supply chain. Machining, fabrication, piping and component suppliers across New London County and into Rhode Island, often with small in-house NDT teams working to customer-flowed naval requirements plus SNT-TC-1A.
• Nuclear power. Millstone Power Station in Waterford, across the Thames, runs refuelling outages that need ET on tubing, UT, VT and surface methods to ASME Section XI and plant-specific qualification requirements. The NRC regulates the plant directly.
• Offshore wind and port work. New London's State Pier has been redeveloped as an offshore wind staging and assembly port, bringing structural steel, weld and coating inspection to AWS D1.1 and project specifications.
• Bridges and transport. The I-95 Gold Star Memorial Bridge over the Thames, rail bridges on the Northeast Corridor and other Connecticut DOT structures require steel and weld inspection.
• Pharmaceutical and industrial plants. Large research and manufacturing facilities in the area operate stainless piping, vessels and utilities that need periodic inspection.

Radiography licensing in Connecticut. Connecticut became an NRC Agreement State on 1 October 2025. The Department of Energy and Environmental Protection (DEEP) Radiation Division now licenses, inspects and enforces the use of radioactive materials, including industrial radiography sources, while the NRC keeps authority over Millstone and spent-fuel facilities. X-ray machines are registered with DEEP. Work on federal installations may involve federal oversight. Radiographers using sources must meet the certification and radiation safety training requirements for industrial radiography (the ASNT IRRSP examination is the common route). Atlantis RT method training covers technique and interpretation, not radiation safety licensing. Confirm current rules with DEEP.

What Groton-area employers typically ask for. Job postings in southeastern Connecticut for NDT roles usually ask for SNT-TC-1A certification at Level II in one or more of VT, MT, PT, UT and RT, experience inspecting welds to a written acceptance standard, and the ability to read weld symbols and fabrication drawings. Defence-related roles add US citizenship and clearance eligibility, and may state that the employer will qualify the candidate to its own naval programme after hire. Power-plant outage roles add plant access requirements and experience with tubing ET or ASME Section XI examinations. Wind and bridge roles emphasise structural steel, AWS D1.1 or D1.5 familiarity and working at height. Across all of them, a technician who arrives with a clean, well-documented SNT-TC-1A training and experience record is easier to onboard, because the employer's Level III can build on it rather than start from zero.

Why weld inspection discipline matters here. Shipbuilding and heavy fabrication reward technicians who are rigorous about the basics: surface preparation before MT or PT, correct dwell and development times, lighting and viewing conditions for VT, proper calibration and scanning coverage for UT, and complete, legible records. Those basics are exactly what SNT-TC-1A classroom and practical training emphasises, and they are also what auditors look at first. When Atlantis runs onsite practical sessions for a Groton-area supplier, the focus is on applying those fundamentals to the joint types, materials and thicknesses that the supplier actually produces.

For pay expectations by level and method, see the NDT salary guide.

Level III services and written practices for Groton NDT companies

Suppliers in the Groton defence and industrial economy often face customer audits of their NDT programmes, and a growing number are building NDT capability for the first time as submarine production expands. Atlantis supports them with:

• SNT-TC-1A written practice development, structured so that customer-flowed naval or nuclear requirements can be layered in by the employer. See written practice development.
• Procedure writing and review for the methods and commercial codes you use.
• Examination administration and grading for general, specific and practical exams.
• Audit preparation: training records, experience logs, vision tests and certification files.

Background: SNT-TC-1A training and certification. Book a Level III consultation for your Groton company.

Practise before the practical exam

The Practical NDT 3D simulator lets trainees practise 12 methods in 5 environments: an NDT lab, a welding workshop, an aircraft hangar, an oil and gas site and a storage tank. The welding workshop and lab are the most relevant to Groton's weld-inspection work. It is practice only and does not replace training hours, supervised experience or the practical examination on real specimens.

Your instructor

Training is led by Anoop Rayavarapu, ASNT NDT Level III and founder of Atlantis NDT, who develops course content, oversees practical sessions and examinations and supports employers with written practices and Level III services. See all NDT training programmes.

Frequently asked questions about NDT training in Groton

How do I get NDT certified in Groton?

Under SNT-TC-1A your employer certifies you after classroom training hours, documented experience, general, specific and practical examinations under a Level III, and a vision test. Atlantis provides training and practical preparation, and written practices and examinations for employers.

Can I take NDT training online in Connecticut?

Yes for classroom theory through live online sessions. Practical training and the practical exam are hands-on, run onsite at your employer's facility. See NDT training online.

How long does UT Level 2 training take?

It is set by the employer's written practice. SNT-TC-1A recommends minimum training and experience hours; experience usually takes longest. See the training requirements matrix.

Do I need a license for radiography in Connecticut?

Your employer needs the licence or registration from DEEP's Radiation Division (Connecticut has been an Agreement State since 1 October 2025), and individual radiographers using sources must meet radiographer certification and safety training requirements.

What does NDT training cost in Groton?

Quote on request. It depends on methods, levels, headcount, onsite practical and any Level III services. Cohort and onsite quotes are normally returned within one business day. Request a Groton quote.

Is ASNT certification recognised by Groton employers?

SNT-TC-1A is widely used by fabrication, power, marine and inspection employers in southeastern Connecticut. Shipyard work adds NAVSEA requirements that the employer applies on top of the base qualification.

Does Atlantis provide NAVSEA qualification?

No. Atlantis trains NDT methods under SNT-TC-1A. NAVSEA-specific qualification and examinations are run by the shipyard or contractor under its approved programme.

Do I need a security clearance to work in NDT in Groton?

Many shipyard and naval base roles require US citizenship and a clearance, which is handled by the employer. Commercial fabrication, power, wind and bridge work generally does not.

Which NDT method should I start with for shipbuilding?

VT and MT are common starting points, followed by PT, UT and RT on welds. Ask target employers what their openings need.

Can Atlantis train our crew onsite in Groton?

Yes, at your facility on your equipment and specimens, with theory live online beforehand.

Is there a simulator to practise on?

Yes, Practical NDT. It is practice only and does not replace the practical exam.

Where can I find practice questions?

See UT Level 2 practice questions.

Talk to us about NDT training in Groton or browse all training programmes.