All individuals desiring to make an oral presentation at the public hearing shall submit to the Texas Department of Protective and Regulatory Services a request for appearance. This form shall be made available at the public hearing and must be filled out and presented to the presiding officer before the hearing begins. Persons wishing to speak who have not filled out the request for appearance form and presented it to the presiding officer before the hearing commences may speak at the discretion of the presiding officer and if time permits.