The University of Wisconsin-Madison is offering three online ammonia refrigeration courses this fall. The remote-learning courses allow refrigeration operators to work toward a process safety management professional certificate or earn professional development hours without traveling to a course location.

• Introduction to Ammonia Refrigeration Systems: October 5-9, 9 a.m.-1 p.m. daily
• Principles and Practices of Mechanical Integrity for Industrial Refrigeration Systems: November 2-6, 10 a.m.-2 p.m. daily
• Intermediate Ammonia Refrigeration Systems: November 30-December 4, 9 a.m.-1 p.m. daily