I’m looking for advice regarding the supply of safety information (Maximum Safe Working Load Data) from a manufacturer of pallet racking. 

Most manufacturers supply their racking with maximum safe load capacity data for the use of their racking systems. I have a client who has no safe load signs for their racking system. I have requested the OEM for SWL information, and they have said they will only supply information if I basically hand over my client to them, that the racking must be reinstalled by contractors of their approval, and that racking supplied before 2014 will not have any SWL information supplied, thus rendering it technically unusable.

Any advice is welcome on what facets are at play here with regard to statutory duties and liabilities of the manufacturer, albeit hypothetically.