The commission may require that certain reports and applications be submitted on standard forms. The commission filing clerk shall maintain a complete index to and set of all commission forms. All documents that are the subject of an official form shall contain all matters designated in the official form and shall conform substantially to the official form. Prior to the implementation of any new form or significant change to an existing form, the change or new form shall be referenced in the "In Addition" section of the Texas Register for public comment. For good cause, new forms or significant changes to existing forms may be implemented without publication on an interim basis for a period not to exceed 180 days.