Final answer:
Examinations for a master or journeyman plumber license are managed by the appropriate regulatory body, which sets the times and places for these exams based on its regulations.
Step-by-step explanation:
The examinations for a license as a master or journeyman plumber are typically managed by the regulatory body responsible for professional licensing in a particular jurisdiction. This could be a state board, a government licensing department, or another official entity vested with the authority to set the standards for licensing in the plumbing profession. These agencies determine when and where examinations will be conducted, based on their internal regulations and procedures.