Sub-licenses refer to the legal permits or approvals that individuals and organizations are required to obtain when operating in conditional business sectors. These requirements are imposed to ensure that business activities meet standards relating to safety, quality, public order, and the protection of public interests.

In practice, not all business lines require sub-licenses. The obligation to obtain such permits only arises when an individual, enterprise, or household business chooses to operate in a sector classified as a conditional business line. Business registration is merely the initial step; to lawfully commence operations, the business entity must further satisfy all sector-specific conditions and maintain such compliance throughout its operation.

Sub-licenses may take various forms, including licenses, certificates, professional practice certificates, or written approvals issued by competent authorities. Each conditional business sector has its own specific requirements regarding eligibility conditions, application dossiers, procedures, and the validity period of the relevant permit.

Therefore, prior to commencing operations, individuals and organizations should carefully review their intended business lines, determine whether a sub-license is required, and prepare the appropriate documentation in order to minimize legal risks during business operations.