Internationally active U.S. banking organizations (member banks, Edge Act and agreement corporations, and bank holding companies) are required to maintain adequate internal records that demonstrate compliance with the investment provisions contained in Subpart A of Regulation K - International Banking Operations (12 CFR Part 211).
The latest form for Recordkeeping Provisions Associated with Changes in Foreign Investments Made Pursuant to Regulation K expires 2021-08-31 and can be found here.