Final answer:
An Authorization to Practice is a temporary permit signed by the president of the Board of Pharmacy, allowing a pharmacist to practice until their official license is issued.
Step-by-step explanation:
An Authorization to Practice signed by the president of the BOP (Board of Pharmacy) grants a pharmacist the right to practice until their license is issued. This authorization serves as a temporary permit that enables pharmacists to work in their field while they are waiting for the formal processing of their pharmaceutical license. The BOP is a regulatory authority in respective states that ensures the safe practice of pharmacy and compliance with law by overseeing licensing, administering exams, and setting standards for practice.