# The Pressure Systems and Transportable Gas Containers Regulations 1989, Regulation 7: Safe operating limits


(1) The user of an installed system and owner of a mobile system shall not operate the system or allow it to be operated unless he has established the safe operating limits of that system.
(2) The owner of a mobile system shall, if he is not also the user of it–
(a) supply the user with a written statement specifying the safe operating limits of that system established pursuant to paragraph (1); or
(b) ensure that the system is legibly and durably marked with such safe operating limits and that the mark is clearly visible.

---
Source: https://www.legislation.gov.uk/uksi/1989/2169/regulation/7 (the official version)
Page: https://openlegislation.uk/pressure-systems-and-transportable-gas-containers-regulations-1989/regulation-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.