Can a request to renew a variance be submitted?

Renewals of variances can indeed be submitted, provided that the request is made before the existing variance expires. This provision allows for continuity in the permissions granted by the original variance, ensuring that there is no gap in compliance or regulation. The process of submitting the renewal request before expiration typically requires adherence to specific guidelines set by the relevant regulatory authority. This ensures that all necessary documentation and rationale for the continued need for the variance are properly evaluated.

In contrast to the other options, stating that renewals are not allowed or that an expired variance cannot be renewed does not capture the regulatory provisions that permit the renewal process under specified circumstances. Additionally, the requirement for submission in person is not universally mandated across all regimens, allowing for more flexibility in the renewal process. Hence, the correct response aligns with the stipulated rules regarding submitting a request for renewal prior to the variance's expiration.