R 408.15754 Wellheads, wellhead connections, and adapters.

Rule 5754. (1) Except under emergency conditions and with due regard for potential hazard, wire line operations equipment shall not be rigged up on any wellhead if the surface pressure exceeds or is expected to exceed the maximum rated working pressure of the wellhead and wellhead equipment. (2) In wire line operations where the weight and pull of the tools is to be supported by the lubricator, the connector shall be of such size and strength to support the anticipated loads.