If a certificate has expired for more than two years, what must an individual do to renew it?

When a certificate has expired for more than two years, the individual must comply with specific requirements to renew it. Typically, this process is more stringent because it reflects a significant lapse in the holder's status, which may involve changes in regulations, training, or knowledge in the field since the last certification was held. These specific requirements could include completing additional training, passing competency tests, or providing updated documentation to demonstrate their ability to perform safely and effectively in their role. Such measures ensure that all certified individuals are up to date with current standards and practices, which is essential for safety in operations like those involving CNG delivery.

The other options do not adequately address the necessary steps tied to such a long lapse in certification. Simply paying a fee or waiting does not ensure that the individual meets current qualifications, which is why complying with updated requirements is critical in this scenario. Reapplying for a new certificate might be considered in some contexts, but adhering to specific renewal processes is generally required to ensure that the person re-establishes their qualifications in line with current regulations and practices.