What is the fine-grained topic of the following text: March 30, 2016 - The International Society of Automation (ISA) and its Strategic Partner for Calibration, Beamex, Inc., announce the opening of attendee registration for Calibration Best Practices: Interactive Workshop, which will be held Thursday, 18 August 2016 at the Space Center Houston in Houston, Texas, USA. Only return the topic.
Opening of attendee registration for Calibration Best Practices: Interactive Workshop by ISA and Beamex, Inc.