This industry comprises establishments primarily engaged in translating written material and interpreting speech from one language to another and establishments primarily engaged in providing sign language services. Cross-References. Establishments primarily engaged in-- ? Providing transcription services--are classified in Industry 561410, Document Preparation Services; ? Providing real-time (i.e., simultaneous) closed captioning services for live television performances, at meetings and conferences--are classified in U.S. Industry 561492, Court Reporting and Stenotype Services; ? Providing film or tape closed captioning services--are classified in U.S. Industry 512191, Teleproduction and Other Postproduction Services; and ? Analyzing handwriting--are classified in Industry 541990, All Other Professional, Scientific, and Technical Services.