This course covers topics including vent limiting options and applications, over pressure protection, code compliance, and the unique benefits of these regulators. Key takeaways: internal vent limiters, vent limiting for 2, 5, and 10 psig systems with appropriate Over Pressure Devices (OPDs), ANSI Z21.80/CSA 6.22 certification, balanced valve design, 100% bubble tight lock-up, and 500:1 turndown.