Definition of Interface Load
An interface load is an engineering value that relates to forces exerted by something on one side of a battery limit on something else on the other side of the battery limit.
Interface Engineering is engineering work related to equipment that is at - or affected by - the battery limit between one contractors scope and the scope of another interfacing party. This could involve many different aspects, including, interface loads.
An example of this might be a pipe or spool that is within the scope of work (SOW) of contractor A, which will be attached to a PLEM or riser base that is within the SOW of contractor B. Contractor B needs to know what forces the pipe may apply to their structure, and contractor A needs to supply this information.
It is one example of an interface issue to resolve.