The background to this requirement is set out in the factsheet from industry bodies International Swaps Dealer Association ISDA and Global Financial Markets Association (GFMA) here and on the Financial Conduct Authority's (FCA) website here.
If you do not already have an LEI, it is necessary for you to obtain one or to provide a representation that your transactions are excluded from these regulations. If you do not have an LEI, and you do not confirm to us that your transactions are excluded, then you will be unable to trade SFTs with NatWest Markets (NWM) after 11th April 2020.
How to request an LEI