The Refrigeration Service Engineers Society (RSES) was slated to debut its revised Controls Specialist exam at its annual conference this week in Las Vegas. The RSES Educational and Examining Board recently updated the entire Controls Specialist exam. The revised exam covers seven categories: general control theory; control design criteria; safety controls; control wiring; pneumatic controls; electro-mechanical controls; and solid state controls. For more information on RSES call 847-297-6464 or visit www.rses.org.