What document is issued by the commissioner allowing someone to engage in a specific occupation?

The correct document issued by a commissioner allowing someone to engage in a specific occupation is a license. A license serves as a formal permission that enables individuals to perform certain jobs or services legally. This regulation is crucial in many fields, including retail floristry, as it often ensures that the licensed individual has met necessary qualifications and adheres to industry standards.

In other contexts, permits often refer to approvals for temporary activities or specific scenarios rather than ongoing professional practice. Certificates typically denote completion of a program or achievement rather than permission to work in a regulated field. Authorizations can imply granting of permission but may not carry the formal legal status associated with a license. Therefore, in the context of pursuing a specific occupation legally and consistently, a license is the appropriate and correct answer.