Standard hours: Public service hours are Monday to Friday from 8:00 AM to 6:30 PM, uninterrupted. This amounts to 10:30 hours of user support daily.

Summer hours and special periods: Monday to Friday, from 8:00 AM to 3:00 PM. This amounts to 7 hours of user support daily. For further details, please consult the PTGAS Labor Calendar.

Contact: To contact CAU technicians, a management tool is available at for users to register their requests, as well as the telephone number 96 665 (8582).