A more thorough explanation:

A board of legal specialization is a group, usually a part of a state bar association, that recognizes lawyers who have expertise in a particular area of law. To become a specialist, a lawyer must meet certain requirements, such as having a certain amount of experience, passing an exam, and receiving positive recommendations from other lawyers.

For example, a lawyer who wants to become a specialist in family law may need to have at least five years of experience in that area, pass an exam on family law, and receive recommendations from other family law attorneys. Once the lawyer meets these requirements, they can be recognized as a specialist in family law by the board of legal specialization.

The purpose of a board of legal specialization is to help people find lawyers who have expertise in a particular area of law. For example, if someone needs a lawyer to help them with a divorce, they may want to find a lawyer who is recognized as a specialist in family law. By looking for a lawyer who has been certified by a board of legal specialization, they can be more confident that they are getting a lawyer who has the knowledge and experience they need.