MM-Machinist's Mate

Rating Description


Machinist's Mates (MM) operate, maintain, and repair (organizational and intermediate level) ship propulsion machinery, auxiliary equipment, and outside machinery, such as: steering engine, hoisting machinery, food preparation equipment, refrigeration and air conditioning equipment, windlasses, elevators, and laundry equipment; operate and maintain (organizational and intermediate level) marine boilers, pumps, forced draft blowers, and heat exchangers; perform tests, transfers, and inventory of lubricating oils, fuels, and water; maintain records and reports; and generate and stow industrial gases. For more detailed information, see the Rating Information Card.

There are 17 credentials closely related to the tasks performed in this Rating that may be attainable as soon as Class "A" technical school has been completed. Sailors can take advantage of these credentialing opportunities shortly following their initial training. Select "< 1 Year" for the "Experience after 'A' School" filter in the "Related Credentials" section to view these credentials.

MM Jobs

Voluntary Education

In addition to obtaining certifications in your field, voluntary education is another way to enhance job performance. Options for voluntary education include:

For help in making informed choices on schools and education programs when using tuition assistance, see:

Navy Learning Center Recommended Degrees for MM-Machinist's Mate

The following occupational-related degrees are recommended by the Navy Learning Center and are listed in the Navy Learning and Development Roadmap (LaDR) for MM.

Recommended Associate Degrees

  • General and Liberal Studies
  • Industrial Management Technology
  • Management
  • Power Plant Technology
  • Quality Control and Safety

Recommended Bachelor/Master Degrees

  • General and Liberal Studies
  • Industrial Management Technology
  • Management
  • Power Plant Technology
  • Quality Control and Safety

Collateral Duty / Out of Rate Assignments

Navy collateral duties/out of rate assignments play a vital role in the day-to-day operations and duties that Officers and Enlisted Sailors perform. Certifications and licenses are also available in these collateral duties/out of rate assignments, so please go to the Collateral Duty/Out of Rate Assignments search feature (under the Navigator) and explore more opportunities to get certified.

Opportunities Related to Academic Degrees

Out of rate or designator requests for exam funding for credentials related to an earned academic degree or a semester course may also be funded if it can be directly related to an industry certification or state license.

For example, if you have a degree in Human Resources but are serving as a Culinary Specialist, you can get funding for a Professional in Human Resources (PHR) certification.

If the completed degree is not in the Sailor's Joint Service Transcript (JST), the Sailor must provide proof of completion with the Voucher Request Form, OPNAV 1500/57 for funding approval. The requested credential must be included on the Navy COOL website, and the Sailor must meet all other eligibility requirements.

As with any credential, you must meet all other eligibility criteria and the certification or license vendors' requirements.

Opportunities for Prior Rate or Designator Sailors

If you have cross-rated or redesignated, you now are eligible for certifications and licenses mapped to your prior rating or designator. The “Navy Bucks” icon on the Navy COOL page for your previous position/rate indicates which certifications and licenses may be funded.

As with any credential, you must meet all other eligibility criteria and the certification or license vendors' requirements.

Opportunities Related to Off-Duty or Command-Sponsored Training

If you can document that you have completed an on- or off-duty training course that fully prepares you for a civilian certification or license, you may now be eligible to have the credential exam funded.

For example, if you took a Command-sponsored Emergency Medical Technician course, you may be eligible for funding for an EMT Basic credential.

The requested credential must appear on Navy COOL, although it does not need to show the Navy Bucks icon to be funded.

College course completion must be annotated in your Joint Service Transcript. Formal off-duty or command-sponsored training should be visible in your Electronic Training Jacket (ETJ). In lieu of an ETJ entry (where training cannot be entered into the ETJ) you will need to submit some form of, proof of completion (a certificate of completion from the course/training is sufficient). If neither of the previously mentioned methods of validating proof of completion are available, then a command correspondence (such as a command letter, memo, or PG-13 form) describing the training along with the OPNAV 1500/57 Professional Certification and Licensing Voucher Request (COOL Voucher Request Form).

As with any credential, you must meet all other eligibility criteria and the certification or license vendors' requirements.

Opportunities for Navy Reservists

If you are a Navy Reservist, officer or enlisted, you may now be eligible for funding for credentials related to your civilian occupation. The certification or license must have relevance to the needs of the Navy, and must appear on Navy COOL, although it does not need to show the Navy Bucks icon to be funded.

To validate your civilian occupation, you will need a screen shot from Navy Standard Integrated Personnel System (NSIPS) showing the Civilian Occupational Code. Please send the NSIPS screenshot with your OPNAV 1500/57 Professional Certification and Licensing Voucher Request (COOL Voucher Request Form).

In lieu of NSIPS documentation you may also submit a command endorsed and executed NAVPERS 1070/613 (PG-13) Administrative Remarks form noting your civilian occupation along with your OPNAV 1500/57 Professional Certification and Licensing Voucher Request (COOL Voucher Request Form). You must sign the PG-13.

As with any credential, you must meet all other eligibility criteria and the certification or license vendors' requirements.

Prior Other-Service Occupation

If you are Navy (Active or Reserve), you may now be eligible for funding for credentials related to prior other-Service (Army, Air Force, Marine Corps, Coast Guard) occupation. The certification or license must have relevance to the needs of the Navy, and must appear on Navy COOL, although it does not need to show the Navy Bucks Navy Bucks icon icon to be funded.

To validate your prior other-Service occupation, you will need to provide Navy COOL with a document (e.g. DD-214; or Military Service School completion certificate; or other document) showing your other-Service occupation. Please send the document (scanned & emailed) with your OPNAV 1500/57 Professional Certification and Licensing Voucher Request (COOL Voucher Request Form).

As with any credential, you must meet all other eligibility criteria and the certification or license vendors' requirements.

Credentials Earned & Maintained Prior to Joining the Navy

If you are Navy (Active or Reserve), you may now be eligible for funding for credentials that were earned, and maintained, prior to entering the Navy. The certification or license must have relevance to the needs of the Navy, and must appear on Navy COOL, although it does not need to show the Navy Bucks Navy Bucks icon icon to be funded.

To validate your earned & maintained credential, you will need to provide Navy COOL with a scanned or emailed document (e.g. credential certificate document, screenshot from your credential dashboard, digital badge, etc…) showing the credential earned and maintained. Please send the document (scanned & emailed) with your OPNAV 1500/57 Professional Certification and Licensing Voucher Request (COOL Voucher Request Form).

As with any credential, you must meet all other eligibility criteria and the certification or license vendors' requirements.

E4


The September Active Duty E4 exams have been delayed. You can still view the references using these links:


The March 2020 SELRES E4 exams have been delayed. You can still view the references using these links:




E5


The September Active Duty E5 exams have been delayed. You can still view the references using these links:


The March 2020 SELRES E5 exams have been delayed. You can still view the references using these links:




E6


The September Active Duty E6 exams have been delayed. You can still view the references using these links:


The March 2020 SELRES E6 exams have been delayed. You can still view the references using these links:




E7

FREQUENTLY ASKED QUESTIONS

A BIBLIOGRAPHY is provided by the Navy Advancement Center (NAC) to document the REFERENCES used by a subject matter expert (a Navy Chief in the rating) as the basis for writing the items on the Active Duty and Reserve Navy Advancement Exams. If a reference has been updated since the exam was created and differs from the reference listed here, the information in the updated reference will be used as the basis for scoring the exam.

General Exam FAQs     Bibliography FAQs

INQUIRIES CONCERNING

Exam Development and Bibliographies
COM: (850) 473-6110
DSN: 753-6110
SFLY_EXAM_QUESTION@navy.mil

General Advancement Information
COM: (850) 473-6148
DSN: 753-6148
SFLY_NAVY_ADVANCEMEN@navy.mil

This is an official U.S. Navy websiteUpdated: October 30, 2020
Top

Click links below to view LaDR documents

This credential is recommended on the rating  LaDR for Sailors currently in the E-3 pay grade, BUT MAY BE TAKEN BY SAILORS IN OTHER PAY GRADES.

Click links below to view LaDR documents

This credential is recommended on the rating  LaDR for Sailors currently in the E-4 pay grade, BUT MAY BE TAKEN BY SAILORS IN OTHER PAY GRADES.

Click links below to view LaDR documents

This credential is recommended on the rating  LaDR for Sailors currently in the E-5 pay grade, BUT MAY BE TAKEN BY SAILORS IN OTHER PAY GRADES.

Click links below to view LaDR documents

This credential is recommended on the rating  LaDR for Sailors currently in the E-6 pay grade, BUT MAY BE TAKEN BY SAILORS IN OTHER PAY GRADES.

Click links below to view LaDR documents

This credential is recommended on the rating  LaDR for Sailors currently in the E-7 pay grade, BUT MAY BE TAKEN BY SAILORS IN OTHER PAY GRADES.

Click links below to view LaDR documents

LaDR documents are available as pay grade-specific or combined, covering all the pay grades in a rating.

Click here to go to Air Conditioning Service COOL Snapshot page.

Renewal Period: 2 years

North American Technician Excellence (NATE), Air Conditioning Service certification is designed for top level service technicians in the HVAC industry. Air Conditioning Service technicians acquire, evaluate, and interpret necessary readings to determine adequacy and acceptability of meeting system operation specifications, power up and adjust control settings to cycle equipment through all designed-for sequences, and perform sufficient field diagnostic procedures to determine causes of inadequate performance and identify corrective actions. There are no formal education or experience requirements; however, candidates should have knowledge of the installation, service, maintenance, and repair of HVAC systems that are limited to 30 tons or less cooling capacity. Candidates must pass a NATE core exam and air conditioning service specialty exam. This certification is not intended for the HVAC system designer, sales force, or engineering community.
Click here to go to Certified Manager of Quality/Organizational Excellence (CMQ/OE) COOL training gap analysis page.

Renewal Period: 3 years

The American Society for Quality (ASQ), Certified Manager of Quality/Organizational Excellence (CMQ/OE) is a professional who leads and champions process-improvement initiatives everywhere from small businesses to multinational corporations that can have regional or global focus in a variety of service and industrial settings. A CMQ/OE facilitates and leads team efforts to establish and monitor customer/supplier relations, supports strategic planning and deployment initiatives, and helps develop measurement systems to determine organizational improvement. The CMQ/OE should be able to motivate and evaluate staff, manage projects and human resources, analyze financial situations, determine and evaluate risk and employ knowledge management tools and techniques in resolving organizational challenges. Candidates must have ten years of on-the-job experience in one or more of the areas of the CMQ/OE Body of Knowledge.  A minimum of five years of this experience must be in a decision-making position. Candidates who have completed a degree from a college, university or technical school with accreditation accepted by ASQ will have part of the ten year experience requirement waived. Candidates must pass a written examination.
Click here to go to Industrial Hydraulic Mechanic (IHM) COOL Snapshot page.

Renewal Period: 5 years

The International Fluid Power Society (IFPS), Industrial Hydraulic Mechanic (IHM) certification is for professionals in the fluid power and motion control industry who fabricate, assemble, test, maintain, and repair systems and components. IHMs understand hydraulic symbols, read system schematics, and are skilled in using hand tools, power tools, micrometers, and testing equipment. Candidates must pass both a written exam and a job performance exam.
Click here to go to Mobile Hydraulic Mechanic (MHM) COOL Snapshot page.

Renewal Period: 5 years

The International Fluid Power Society (IFPS), Mobile Hydraulic Mechanic (MHM) certification is for professionals in the fluid power and motion control industry who fabricate, assemble, test, maintain, and repair systems and components. MHMs understand hydraulic symbols, read system schematics, and are skilled in using hand tools, power tools, micrometers, and testing equipment. Candidates must pass a written exam and a job performance exam.
Click here to go to Certified Control Systems Technician - Level I (CCST-I) COOL Snapshot page.

Renewal Period: 3 years

The International Society of Automation (ISA), Certified Control Systems Technician – Level I (CCST-I) credential offers third-party recognition of a technician's knowledge and skills in automation and control. CCSTs understand process control looks and process control systems, including computer systems. CCSTs calibrate, document, troubleshoot, and repair/replace instrumentation for systems that measure and control level, temperature, pressure, flow, and other process variables. CCST certifications are available at three levels, depending on the level of experience, training and education, with Level I being the most basic. Candidates must meet a combination of education and experience. Candidates must pass a written exam.
Click here to go to National Chief Engineer (Limited) Steam/Motor/GT COOL Snapshot page.

Renewal Period: 5 years

The National Chief Engineer (Limited) Steam/Motor/Gas Turbine (GT) is the head of the engineering department on a merchant vessel of less than 1600GRT/3000GT and any horsepower (AHP). Chief Engineer’s oversee the engine room and auxiliary equipment, routine maintenance programs, operation of machinery, and auxiliary equipment. They respond to emergencies and report events in the appropriate logs. Additionally, Chief Engineer’s observe engine room repairs and work being done during periods of shoreside maintenance. Candidates must meet a minimum sea service, training, and exam requirement.

Click here to go to National Chief Engineer/Assistant Engineer UFIV COOL Snapshot page.

Renewal Period: 5 years

The National Chief Engineer/Assistant Engineer Uninspected Fishing Industry Vessels (UFIV) is the head of the engineering department of any tonnage and horsepower. Chief Engineers/Assistant Engineers oversee the engine room and auxiliary equipment, routine maintenance programs, operation of machinery, and auxiliary equipment. They respond to emergencies and report events in the appropriate logs. Additionally, Chief Engineers/Assistant Engineers observe engine room repairs and work being done during periods of shoreside maintenance. Candidates must meet a minimum sea service, training, and exam requirement.
Click here to go to National Assistant Engineer (OSV) COOL Snapshot page.

Renewal Period: 5 years

The National Assistant Engineer Offshore Supply Vessels (OSV) assists the Chief Engineer and performs ship maintenance, engine maintenance, machinery repairs, and fueling. They are also responsible for electrical, sewage treatment, lube oil, bilge, and oily water separation systems, and stand a watch. Their duties depend upon the type of ship or vessel and arrangement of the engine department.

Click here to go to National Lifeboatman and Lifeboatman-Limited COOL Snapshot page.

The National Lifeboatman and Lifeboatman-Limited is a Merchant Mariner Credential (MMC). A Lifeboatman is a mariner who is qualified to take charge of, lower, and operate survival craft and related survival equipment on a vessel. A Lifeboatman-Limited is a mariner who is qualified to take charge of, lower, and operate life rafts, rescue boats, and other survival equipment on vessels where lifeboats are not installed. To obtain the National Lifeboatman and Lifeboatman-Limited credential, applicants must satisfy general MMC requirements and a sea service requirement. Applicants must also pass an exam (by oral or other means) and a practical demonstration. The practical demonstration requirement may be met by completion of an approved course, provided the course includes actual practical demonstration of abilities.
Click here to go to National 3rd Assistant Engineer Steam/Motor/GT COOL Snapshot page.

Renewal Period: 5 years

The National 3rd Assistant Engineer Steam/Motor/Gas Turbine, is a mid-level license and a member of the engineering department on a merchant vessel. Engineers monitor the safe and efficient operation of engineering machinery, conduct routine maintenance and repair of engine room machinery and auxiliary equipment, and observe engine room repairs and work done by shipyard or other contractors. They also perform watch standing duties, respond to emergencies, and report special events in the appropriate logs. Engineer’s participate as a lifeboat crewmember and a firefighting and emergency response team leader and report to the Chief and/or First Assistant Engineer. There are several pathways outlined in the licensing documents to obtain a United States Coast Guard license as a Third Assistant Engineer. Candidates must meet a minimum sea service, training, and exam requirement.
Click here to go to National 1st Assistant Engineer Steam/Motor/GT COOL Snapshot page.

Renewal Period: 5 years

The National 1st Assistant Engineer Steam/Motor/Gas Turbine is a management-level license and a member of the engineering department on a merchant vessel. Engineers monitor the safe and efficient operation of engineering machinery, conduct routine maintenance and repair of engine room machinery and auxiliary equipment, and observe engine room repairs and work done by shipyard or other contractors. They also perform watch standing duties, respond to emergencies, and report special events in the appropriate logs. Engineer’s participate as a lifeboat crewmember and a firefighting and emergency response team leader and report to the Chief Engineer. The First Engineer is responsible for the engine room when the Chief is not available. There are several pathways outlined in the licensing documents to obtain a United States Coast Guard license as a First Assistant Engineer. Candidates must meet a minimum sea service, training, and exam requirement.
Click here to go to National 2nd Assistant Engineer Steam/Motor/GT COOL Snapshot page.

Renewal Period: 5 years

The National 2nd Assistant Engineer Steam/Motor/Gas Turbine is a mid-level license and a member of the engineering department on a merchant vessel. Engineers monitor the safe and efficient operation of engineering machinery, conduct routine maintenance and repair of engine room machinery and auxiliary equipment, and observe engine room repairs and work done by shipyard or other contractors. They also perform watch standing duties, respond to emergencies, and report special events in the appropriate logs. Engineer’s participate as a lifeboat crewmember and a firefighting and emergency response team leader and report to the Chief and/or First Assistant Engineer. There are several pathways outlined in the licensing documents to obtain a United States Coast Guard license as a Second Assistant Engineer. Candidates must meet a minimum sea service, training, and exam requirement.
Click here to go to National Assistant Engineer (Limited) Steam/Motor/GT COOL Snapshot page.

Renewal Period: 5 years

The National Assistant Engineer (Limited) Steam/Motor/Gas Turbine (GT) assists the Chief Engineer. They are responsible (not limited to) for ship maintenance, engine maintenance, machinery repairs, and fueling on board a Steam/Motor/GT Vessel. They are also responsible for electrical, sewage treatment, lube oil, bilge, and oily water separation systems, and stand a watch. Their duties depend upon the type of ship or vessel and arrangement of the engine department.
Click here to go to Certified Maintenance and Reliability Professionals (CMRP) COOL training gap analysis page.

Renewal Period: 3 years

The Society for Maintenance and Reliability Professional (SMRP), Certified Maintenance and Reliability Professional (CMRP) is a certification for maintenance, reliability and physical asset management professionals. CMRP candidates should possess aptitude in the following areas: business and management, equipment reliability, manufacturing process reliability, organization and leadership, and work management. There are no experience or education eligibility requirements. Candidates must pass a written exam.
Click here to go to Certified Maintenance and Reliability Technician (CMRT) COOL training gap analysis page.

Renewal Period: 3 years

The Society for Maintenance and Reliability Professionals (SMRP), Certified Maintenance and Reliability Technician (CMRT) is a certification for maintenance and reliability technicians who are responsible for preventative, predictive and corrective maintenance. CMRT candidates should possess aptitude in the following areas: maintenance practices, preventative and predictive maintenance, troubleshooting and analysis, and corrective maintenance. There are no experience or education eligibility requirements. Candidates must pass a written exam.
Click here to go to National Chief Engineer (Unlimited) Steam/Motor/GT COOL Snapshot page.

Renewal Period: 5 years

The Chief Engineer Unlimited Steam/Motor/GT is the head of the engineering department on a merchant vessel of any tonnage or horsepower. National Chief Engineers manage the safe and efficient operations of all machinery spaces and equipment on board, oversee the engine room, auxiliary equipment, routine maintenance programs, monitor the safe and efficient operation of machinery, and auxiliary equipment, and respond to emergencies, and report events in the appropriate logs. Chief Engineers also observe engine room repairs and work being performed during periods of shoreside maintenance. Candidates must meet a minimum sea service, training, and exam requirement.

Click here to go to National Chief Engineer OSV COOL Snapshot page.

Renewal Period: 5 years

The United States Coast Guard (USCG), Chief Engineer Offshore Supply Vessel (OSV) is the head of the engineering department on an OSV of any tonnage and horsepower. National Chief Engineers manage the safe and efficient operations of all machinery spaces and equipment on board, oversee the engine room, auxiliary equipment, routine maintenance programs, monitor the safe and efficient operation of machinery, and auxiliary equipment, and respond to emergencies, and report events in the appropriate logs. Chief Engineers also observe engine room repairs and work being performed during periods of shoreside maintenance. Candidates must meet a minimum sea service, experience, and training requirements. Candidates must pass a written exam.

Click here to go to National Assistant Engineer of MODU COOL Snapshot page.

Renewal Period: 5 years

The National Assistant Engineer Mobile Offshore Drilling Unit (MODU) assists the Chief Engineer and performs ship maintenance, engine maintenance, machinery repairs, and fueling. They are also responsible for electrical, sewage treatment, lube oil, bilge, and oily water separation systems, and stand a watch. Their duties depend upon the type of ship or vessel and arrangement of the engine department.
Click here to go to Diemaking Level III COOL Snapshot page.

The National Institute for Metalworking Skills (NIM), Diemaking III certification is a master level credential recommended for machinists with experience and skill in diemaking. The Diemaking Level III credential assesses a candidate’s knowledge, skills, and abilities with decision making and problem solving, written and oral communication, engineering drawings and sketches, metalworking theory and metal forming theory. Candidate is required to undergo a series of hands-on performance assessments as part of the credentialing process. Candidate must also pass a written exam.
Click here to go to Certified Vibration Analyst - Category I COOL Snapshot page.

Renewal Period: 5 years

The Vibration Institute, Certified Vibration Analyst - Category I is an entry-level credential for professionals who specialize in machine and equipment maintenance, troubleshooting, and engineering. Vibration Analysts certified at the first level perform a range of single channel machinery vibration condition monitoring and diagnostic activities. This activity may include acquiring data on predetermined routes, testing machinery for predefined procedures, and reading comparisons alert settings. Applicants for the Category I Certified Vibration Analyst certification must meet training and experience requirements and are also required to pass an exam.
Click here to go to Certified Control Systems Technician - Level II (CCST-II) COOL Snapshot page.

Renewal Period: 3 years

The International Society of Automation (ISA), Certified Control Systems Technician – Level II (CCST-II) credential offers third-party recognition of a technician's knowledge and skills in automation and control. CCSTs understand process control looks and process control systems, including computer systems. CCSTs calibrate, document, troubleshoot, and repair/replace instrumentation for systems that measure and control level, temperature, pressure, flow, and other process variables. CCST certifications are available at three levels, depending on the level of experience, training and education, with Level II being the mid-level. Candidates must meet a combination of education and experience. Candidates must pass a written exam.
Click here to go to Certified Control Systems Technician - Level III (CCST-III) COOL Snapshot page.

Renewal Period: 3 years

The International Society of Automation (ISA), Certified Control Systems Technician – Level III (CCST-III) credential offers third-party recognition of a technician's knowledge and skills in automation and control. CCSTs understand process control looks and process control systems, including computer systems. CCSTs calibrate, document, troubleshoot, and repair/replace instrumentation for systems that measure and control level, temperature, pressure, flow, and other process variables. CCST certifications are available at three levels, depending on the level of experience, training and education, with Level III being the most advanced. Candidates must meet a combination of education and experience. Candidates must pass a written exam.
Click here to go to Certified Vibration Analyst - Category II COOL Snapshot page.

Renewal Period: 5 years

The Vibration Institute, Certified Vibration Analyst - Category II is an intermediate-level credential for professionals who specialize in machine and equipment maintenance, troubleshooting, and engineering. Vibration Analysts certified at the second level perform basic vibration analysis using single-channel instruments according to established procedures, set-up instruments, and maintain a database of results. Applicants for the Category II Certified Vibration Analyst certification must meet training and experience requirements and are also required to pass an exam.
Click here to go to Certified Balancing Specialist - Category I COOL Snapshot page.

Renewal Period: 5 years

The Vibration Institute, Certified Balancing Specialist - Category I is an entry-level credential for professionals who adjust machinery. The Certified Balancing Specialist credential validates an individual's knowledge of the basics of balancing, vibration testing and analysis, and balancing techniques. Individuals seeking certification as a Balancing Specialist are required to understand basic shop and field balancing concepts, and be able to perform vibration analysis, conduct single-plane balancing, calculate balance sensitivity and phase lag, and evaluate balance results against ISO balancing standards. Applicants are required to meet experience and training requirements and must pass an exam.
Click here to go to National Operator of Uninspected Passenger Vessel Less Than 100 GRT COOL Snapshot page.

Renewal Period: 5 years

The National Operator of Uninspected Passenger Vessel (OUPV) Less Than 100 GRT is an officer endorsement for uninspected passenger vessels which by law are limited to six or less passengers for hire. These are usually smaller vessels and that engage in charter fishing, whale watching, SCUBA diving, and tour cruises. OUPV Near Coastal endorsements may be limited to 100 miles offshore, Inland or Great Lakes in accordance with 46 CFR 11.467 and the service provided. No OUPV endorsement is valid for International voyages.

Click here to go to STCW III/1 - OICEW or DDE 750 kW/1000 HP or More COOL Snapshot page.

Renewal Period: 5 years

The STCW - Officer in Charge of Engneering Watch (OICEW) or DDE 750 kW/1000 HP or More is the officer on watch in charge of the main propulsion plant of the ship, and of the associated auxiliaries. They are responsible for the safe and proper operation of such units, and for the performance of the duties prescribed in these regulations and by other competent authority. OICEW will also be responsible for power generation and distribution systems and other equipment such as refrigeration plant and pumping and ventilation systems and more.

A designated duty engineer DDE is defined by STCW as the engineer in charge of a watch in a periodically unmanned engine room. Under the United States regulations, the DDE may serve as a Chief Engineer on domestic vessels of not more than 500grt.

Click here to go to National Qualified Member of the Engineering Department (QMED) COOL Snapshot page.

The Qualified Member of the Engineering Department (QMED) is the senior most rating in the engine room and also the entry level for any merchant marine Engineering Officers License. Each QMED rating must be endorsed separately, unless one qualifies for all QMED ratings. QMED duties include, but are not limited to, inspection of equipment such as pumps, turbines, distilling plants, and condensers; lubrication and maintenance of generators, steering systems, lifeboats, and sewage disposal systems; cleaning and restoration of tools and other equipment.

Click here to go to Electrical Generator Systems Technician Certification - Apprentice COOL Snapshot page.

Renewal Period: 3 years

The Electrical Generating Systems Association (EGSA), Electrical Generator Systems Technician Certification - Apprentice is an entry-level certification that demonstrates an individual's knowledge of on-site power generation equipment and systems. Electrical Generator Systems Technician Apprentices have knowledge of electricity, mechanical, and electrical components and the interactions between them and are proficient in the installation, service, maintenance, and repair of on-site power generation systems. There are no formal education or experience requirements, but candidates must pass a written exam.
Click here to go to Transportation Worker Identification Credential (TWIC) COOL Snapshot page.

Renewal Period: 5 years

The Transportation Security Administration (TSA), Transportation Worker Identification Credential (TWIC), while not formally a license or certification in and of itself, is required by the Maritime Transportation Security Act for workers who need access to secure areas of the nation's maritime facilities and vessels. TSA conducts a security threat assessment (background check) to determine a person's eligibility and issues the credential. U.S. citizens and immigrants in certain immigration categories may apply for the credential.
Click here to go to Reliability Operator Certification (RC) COOL Snapshot page.

Renewal Period: 3 years

The North American Electric Reliability Corporation (NERC), Reliability Operator Certification (RC) is an intermediate-level credential for professionals who operate bulk electric systems. RCs are knowledgeable in resource and demand balancing, transmission, emergency preparedness, contingency analysis and reliability, and managing communications and data. There are no eligibility requirements for the RC certification. Candidates must pass a written exam.
Click here to go to Balancing, Interchange, and Transmission Operator Certification (BT) COOL Snapshot page.

Renewal Period: 3 years

The North American Electric Reliability Corporation (NERC), Balancing, Interchange, and Transmission System Operator Certification (BT) is an intermediate-level credential for professionals who operate bulk electric systems. System Operators monitor power flows, voltages and status of equipment on the transmission system, and ensure the safe and reliable operation of the bulk electric system. Candidates for the BT are expected to have knowledge of resource and demand balancing, transmission, emergency preparedness, contingency analysis and reliability, and managing communications and data.
Click here to go to Transmission Operator Certification (TO) COOL Snapshot page.

Renewal Period: 3 years

The North American Electric Reliability Corporation (NERC), Transmission System Operator Certification (TO) is an intermediate-level credential for professionals who operate bulk electric systems. TOs are knowledgeable in resource and demand balancing, transmission, emergency preparedness, contingency analysis and reliability, and managing communications and data. There are no eligibility requirements for the TO certification. Candidates must pass a written exam.
Click here to go to Balancing and Interchange Certification (BI) COOL Snapshot page.

Renewal Period: 3 years

The North American Electric Reliability Corporation (NERC), Balancing and Interchange Operator Certification (BI) is an intermediate-level credential for professionals who operate bulk electric systems. BIs are knowledgeable in resource and demand balancing, transmission, emergency preparedness, contingency analysis and reliability, and managing communications and data. There are no eligibility requirements for the BI certification exam. Candidates must pass a written exam.

In Demand

This certification is considered in demand. The U.S. Department of Labor sponsored CareerOneStop's analysis indicates the certification is frequently mentioned in online job postings.

Click for external link to CareerOneStop's Credentials Center.

Navy Bucks

Credential voucher or reimbursement for credential exam, re-certification, or maintenance fee has been approved for payment through the Navy's Credential Program Office. To get a voucher request form, click Menu at the top of any page, then click "2 Complete Voucher and Apply" under Credentialing Steps.

Gap Analysis

The credential requirements have been compared to military training.

Click here to go to the COOL training gap analysis page.

Gap Analysis

The credential requirements have been compared to military training.

Click here to go to the COOL training gap analysis page.

Gap Analysis

The credential requirements have been compared to military training.

Click here to go to the COOL training gap analysis page.

GI Bill®

Reimbursement for exam fees has been approved for payment through the GI Bill.

Note: GI Bill approval data is updated quarterly. For the latest information, visit the WEAMS Licenses/Certifications Search page. Make sure to select "Both" in the LAC Category Type drop-down before searching.

Click to go to the external link for GI Bill licensing and certification information.

Some

Credential is related to some tasks associated with the duties of the rating (at least one critical task but less than 80%)

Most

Credential is directly related to most of the major duties associated with the rating (at least 80%)

Other

Credential is related to this military occupation, but is more advanced or specialized and therefore will likely require additional education, training, or experience

High

Highly attainable: Credential is related to the duties performed within the military occupation, the minimum education requirement = HS or less and/or minimum experience = 2 years or less experience and no additional requirements.

Medium

Moderate ease of attainment: Credential is related to the duties performed within the military occupation, the minimum education requirement = Associate's and/or prerequisite and/or minimum experience = more than 2 years and less than 10 years of experience.

Low

May be difficult to attain: Credential is related to the duties performed within the military occupation, the minimum education requirement is a Bachelor's degree, and/or minimum experience is 10 or more years.

Most – Tasks in these careers match most duties of the military job or specialty (approximately 80% or greater)
Some – Tasks in these careers match some duties of the military job or specialty (greater than 20% but less than 80%)
Bright Outlook – new job opportunities are very likely in the future for this job

Registered Apprenticeship

An apprenticeship program is registered with the U.S. Department of Labor. Go to the Apprenticeship Finder and enter career path or location to find apprenticeship opportunities.

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This credential has been accredited by:
This credential has been accredited by: