# The Pressure Systems Safety Regulations 2000, Paragraph 4

Extent: E+W+S

That part of a system which is only a pressure system because it is–
(a) subject to a leak test (except that this sub-paragraph shall not apply to a pipeline);
(b) pressurised unintentionally, such pressurisation being not reasonably foreseeable; or
(c) a pipeline pressurised by a relevant fluid solely as part of a test or line clearance operation, but this exception shall not apply if the pipeline–
(i) is used for the conveyance of a relevant fluid, or
(ii) is pressurised beyond its safe operating limits.

---
Source: https://www.legislation.gov.uk/uksi/2000/128/schedule/1/paragraph/4 (the official version)
Page: https://openlegislation.uk/pressure-systems-safety-regulations-2000/schedule-1/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.