Which is essential for an individual performing installations and servicing?

Holding the appropriate license or permit is vital for an individual performing installations and servicing because this credential signifies that they have met specific regulatory requirements and competencies required by the state or local authorities. Licensing ensures that the person has the necessary training to understand safety protocols, equipment usage, and installation standards related to fire extinguishers and other fire safety equipment. This is crucial not only for compliance with laws and regulations but also for ensuring the safety of the installations being conducted. Proper licensing helps to lower the risk of improper installations that could lead to failures in emergency situations, thereby protecting lives and property.

While general knowledge of fire safety, experience in a related fire industry, and references from previous employers can be beneficial, they do not carry the same weight as having a valid license or permit in terms of legal requirements and assurance of proper training standards in the field of fire protection.