Pressure Systems [Energy] Law and Legal Definition

According to 10 CFR 851.3 (a) [Title 10 Energy; Chapter III Department of Energy; Part 851 Worker Safety and Health Program; Subpart A General Provisions], Pressure Systems means “all pressure vessels, and pressure sources including cryogenics, pneumatic, hydraulic, and vacuum. Vacuum systems should be considered pressure systems due to their potential for catastrophic failure due to backfill pressurization. Associated hardware (e.g., gauges and regulators), fittings, piping, pumps, and pressure relief devices are also integral parts of the pressure system.”