Professional certification

Professional certification, trade certification, or professional designation, often called simply certification or qualification, is a designation earned by a person to assure qualification to perform a job or task. Not all certifications that use post-nominal letters are an acknowledgement of educational achievement, or an agency appointed to safeguard the public interest. A certification is a third-party attestation of an individual's level of knowledge or proficiency in a certain industry or profession. They are granted by authorities in the field, such as professional societies and universities, or by private certificate-granting agencies. Most certifications are time-limited; some expire after a period of time (e.g., the lifetime of a product that required certification for use), while others can be renewed indefinitely as long as certain requirements are met. Renewal usually requires ongoing education to remain up-to-date on advancements in the field, evidenced by earning the specified number of continuing education credits (CECs), or continuing education units (CEUs), from approved professional development courses. Many certification programs are affiliated with professional associations, trade organizations, or private vendors interested in raising industry standards. Certification programs are often created or endorsed by professional associations, but are typically completely independent from membership organizations. Certifications are very common in fields such as aviation, construction, technology, environment, and other industrial sectors, as well as healthcare, business, real estate, and finance. According to The Guide to National Professional Certification Programs (1997) by Phillip Barnhart, "certifications are portable, since they do not depend on one company's definition of a certain job" and they provide potential employers with "an impartial, third-party endorsement of an individual's professional knowledge and experience". Certification is different from professional licensure.