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About this exam

The FOA CFOT (Certified Fiber Optic Technician) is a certification offered by The Fiber Optic Association, an international non-profit educational association chartered to promote professionalism in fiber optics through education, certification and standards. FOA describes itself as an internationally recognized certifying body for fiber optics and as the certifying body for nearly 100,000 FOA-certified fiber optic technicians who build worldwide networks. The credential is aimed at technicians who install, terminate, test and maintain fiber optic cable plants, and it is the entry-level certification in a family of FOA programs that also includes specialist CFOS credentials in areas such as testing and design. Coverage spans basic fiber optic technology, components and applications; premises cabling; outside plant fiber and construction; network design; fiber optic testing; and FTTH/fiber broadband. The FOA publishes reference textbooks for these subjects, including the 2nd Edition of the FOA Reference Guide To Fiber Optics used in training for the CFOT certification, and offers free Fiber U self-study programs designed as preparation for taking a classroom course or taking a FOA certification exam. Candidates can train through FOA Approved Schools, which offer classroom training with CFOT certification, or study independently before testing. This page is an independent study resource and is not affiliated with or endorsed by the FOA. Always confirm current requirements, fees and renewal rules with the FOA directly.

What you'll study

Common questions

About FOA CFOT preparation

Who issues the CFOT, and what is the FOA?

The Fiber Optic Association, Inc. (FOA) issues the CFOT. FOA describes itself as an international non-profit educational association chartered to promote professionalism in fiber optics through education, certification and standards, and as an internationally recognized certifying body for fiber optics. It also states it is best known as the certifying body for the nearly 100,000 FOA-certified fiber optic technicians who build worldwide networks.

How do I prepare for the CFOT exam?

FOA points candidates to its reference textbooks, including the 2nd Edition of the FOA Reference Guide To Fiber Optics, which it describes as the textbook used in training for the CFOT certification. FOA also offers free Fiber U online self-study programs covering all FOA certification subjects, designed as preparation for taking a classroom course or taking a FOA certification exam. Many candidates combine self-study with hands-on practice.

Can I take a classroom course instead of studying alone?

Yes. FOA maintains a list of FOA Approved Schools that offer CFOT certification through classroom training. If you want hands-on fiber optic training with FOA certification, FOA directs you to that approved-schools list. Organizations interested in becoming an FOA Approved School can find new school requirements and application procedures on the FOA site.

What topics does the CFOT exam cover?

The certification covers the core body of fiber optic technology: basic fiber optic technology, components and applications; premises cabling; outside plant fiber and construction; network design; fiber optic testing; and FTTH/fiber broadband. FOA publishes separate reference books for fiber optics, premises cabling, OSP fiber and construction, network design, testing and FTTH, reflecting these subject areas.

Does my CFOT certification expire, and how do I renew it?

Yes. FOA states that FOA Certified persons must renew their CFOT or CFOS certifications when they expire, and asks certificants to make sure FOA has their current address. You can renew online with a credit card or PayPal account, or pay by check or money order using the FOA Renewal Form, which you download and mail to FOA.

What should I study first if I am new to fiber?

Start with basic fiber optic technology, components and applications, since the other domains assume that foundation. Then work through premises cabling and outside plant fiber and construction, which cover installation practice. Add fiber optic testing next, because loss budgets and test methods show up across the other domains. Finish with network design and FTTH/fiber broadband, which combine earlier material.

What is the most common way candidates lose points?

Weak spots usually show up in the quantitative and practical areas: loss budget calculations, insertion loss and OTDR testing, connector inspection and cleaning, and safety practices. FOA's testing textbook covers microscope inspection of connectors and how to clean them, visual fiber tracing and fault location, optical power measurement, insertion loss and OTDR testing, plus calculating loss budgets, so drill those until they are routine.

Is the CFOT the only FOA certification?

No. FOA offers a family of certification programs and explains the differences in its guidance on understanding FOA credentials, which covers certifications, certificates and badges. Specialist CFOS credentials exist, for example in fiber optic testing and in network design, and FOA also offers a Microcredential in Fiber Optics for professionals working in management, manufacturing, sales or network planning roles.

How can I get hands-on practice without buying equipment?

FOA publishes a large library of free instructional material, including over 110 instructional videos and lectures on its thefoainc YouTube channel, with lectures on premises cabling and fiber optics and hands-on demonstrations. FOA also offers free Fiber U self-study programs and MiniCourses. Reviewing demonstrations before a classroom course helps you get more from supervised practice.

Where can I find job information after certifying?

FOA maintains a jobs web page and a page on using your FOA training and certification to find the right job in fiber optics. FOA also created a YouTube video and a Careers In Fiber Optics webpage describing what a fiber optic worker does, where they work and how to get started. FOA notes the information is mainly aimed at high school students but relevant to career changers.