When an interpreter will be needed for all or part of a proceeding, a party shall file a written request at least seven days before the setting. SOAH shall provide and pay for:(1) an interpreter for deaf or hearing impaired parties and subpoenaed witnesses in accordance with the APA, §2001.055;(2) reader services or other communication services for blind and sight impaired parties and witnesses; and(3) a certified language interpreter for parties and witnesses who need that service.