13 Tex. Admin. Code § 6.33
(c) Destruction of records on a roll of microfilm containing multiple record series must be done by destroying the whole roll of film at the time the records on the film that have the longest retention period are eligible for destruction or, if filmed prior to the effective date of these standards, by deleting the section of the film containing records eligible for destruction and splicing the film. If the film is spliced, a destruction notice containing the following information must be inserted in place of the deleted records:
Source Note:The provisions of this §6.33 adopted to be effective June 12, 1996, 21 TexReg 4989.