Both halves of the interlock come with reporting duties, both mostly run on the same fourteen-day clock, and they are written in two different rules. That is how a credential quietly goes out of date: the firm assumes the licensee filed, the licensee assumes the firm did, and each is looking at the provision addressed to the other. 28 TAC § 34.610 carries the firm’s duties, 28 TAC § 34.611 carries the licensee’s, and one event — a licensee joining or leaving a firm — appears in both, from each side.

Most of these duties are reported AFTER the event. A change in the designated employee is submitted in writing within 14 days of the change occurring. A change of corporate officers is reported in writing within 14 days, and that one notably does not require a revised certificate. A change in a firm’s name, location, or mailing address does require a revised certificate, with written notification and the fee within 14 days of the change. On the licensee’s side, a change in the licensee’s name, the licensee’s mailing address, or a new or additional registered firm employing them requires a revised license, again on written notification with the fee within 14 days. And a lost or destroyed certificate or license is replaced by a duplicate, on written notification without delay.

One duty runs the other way, and it is the one that can stop a business. Under 28 TAC § 34.610, the TOTAL change of a firm’s ownership invalidates the current certificate — not suspends it, not flags it for review. To ensure the business continues, a complete application for a new certificate must be submitted to the state fire marshal at least 14 days BEFORE the change. A partial change of ownership is treated much more lightly, requiring a revised certificate only where it affects the firm’s name, location, or mailing address. So the same word, ownership, produces a fourteen-day advance application in one case and a form in the other, and the difference is total against partial.