What document allows individuals to provide services in their specific fields of practice?

A document that allows individuals to provide services in their specific fields of practice is a license. A license is a legal authorization issued by a government body that grants permission to an individual to carry out specific activities, which often requires meeting certain educational and competency requirements.

Licensing is common in fields that involve public safety, such as healthcare, engineering, and various trades, ensuring that practitioners have the necessary qualifications to perform their duties responsibly and safely.

In contrast, certification usually indicates a level of competency or expertise in a particular area, but does not inherently grant permission to practice. A permit is often temporary or specific to particular tasks rather than an ongoing authorization to work in a field. A certificate is generally a document indicating completion of a course or training program, but similar to certification, it does not serve the primary function of granting permission to engage in a professional practice.